Best Texting Blue Alternatives in 2026

Photon leads this list with support for 75 of the 77 features we compare. Each entry shows what it adds over Texting Blue, its starting price and a full side-by-side comparison.

The product you are replacing

Texting Blue

Shared team iMessage inbox on your own iPhone number

Starting price

$19/month per number

Free plan

3-day free trial

Visit Texting BlueRead more

1. 

   Photon

   Open-source agent framework with managed iMessage

   Starting price

   $25/month (Pro)

   Free plan

   Free: shared iMessage lines, up to 10 users (2.0 beta: 25 shared iMessage assignments and $100 credit)

   #1What it adds over Texting Blue

   • Group chats
   • Group management
   • Group name and photo
   • Mentions
   • Tapbacks

   Compare with Texting Blue

   Visit PhotonRead more
2. 

   Linq

   iMessage, RCS and SMS API with flat monthly pricing

   Starting price

   $260/month (Pro)

   Free plan

   Hobby: $0, up to 20 contacts, used through the CLI

   #2What it adds over Texting Blue

   • Group chats
   • Group management
   • Group name and photo
   • Mentions
   • Tapbacks

   Compare with Texting Blue

   Visit LinqRead more
3. 

   Blooio

   One API for iMessage, WhatsApp and Apple Messages

   Starting price

   $39/month (Starter, shared number)

   Free plan

   Free trial: 20 messages total on a shared number, no credit card

   #3What it adds over Texting Blue

   • Group chats
   • Group management
   • Group name and photo
   • Tapbacks
   • Threaded replies

   Compare with Texting Blue

   Visit BlooioRead more
4. 

   Sendblue

   iMessage API and CRM texting for sales and agents

   Starting price

   $100/month per line

   Free plan

   Free sandbox: shared number, up to 10 verified contacts, no webhooks

   #4What it adds over Texting Blue

   • Group chats
   • Group management
   • Group name and photo
   • Tapbacks
   • Threaded replies

   Compare with Texting Blue

   Visit SendblueRead more
5. 

   LoopMessage

   iMessage, SMS, RCS and WhatsApp on one number

   Starting price

   $59.99/month per sender (Light)

   Free plan

   Sandbox: $0, 5 contacts, testing only; free shared plan for schools and non-profits

   #5What it adds over Texting Blue

   • Group chats
   • Group management
   • Group name and photo
   • Tapbacks
   • Threaded replies

   Compare with Texting Blue

   Visit LoopMessageRead more
6. 

   Chert

   iMessage and FaceTime numbers for AI agents

   Starting price

   $25/month (Shared)

   Free plan

   24-hour trial: 10 messages and 10 FaceTime minutes on a shared line

   #6What it adds over Texting Blue

   • Group chats
   • Group management
   • Group name and photo
   • Tapbacks
   • Typing indicators

   Compare with Texting Blue

   Visit ChertRead more
7. 

   BlueBubbles

   Free, open-source iMessage bridge you host on a Mac

   Starting price

   Free

   Free plan

   Free and open source (Apache-2.0)

   #7What it adds over Texting Blue

   • Group chats
   • Group management
   • Group name and photo
   • Mentions
   • Tapbacks

   Compare with Texting Blue

   Visit BlueBubblesRead more
8. 

   MessageBlue

   iMessage API for agents, with bring-your-own-number

   Starting price

   $100/month per line

   Free plan

   $0 with your own number and Mac, all features, limited seats

   #8What it adds over Texting Blue

   • Group chats
   • Group management
   • Tapbacks
   • Typing indicators
   • Read receipts

   Compare with Texting Blue

   Visit MessageBlueRead more
9. 

   Twilio

   Global CPaaS for SMS, RCS, WhatsApp and voice

   Starting price

   $0.0083 per US SMS segment

   Free plan

   30-day free trial, no card, with 100 SMS and 75 voice minutes

   #9What it adds over Texting Blue

   • Dedicated numbers
   • Shared numbers
   • Line pooling
   • RCS
   • WhatsApp

   Compare with Texting Blue

   Visit TwilioRead more
10. 

    Bird

    Email, SMS, WhatsApp and Apple Messages APIs

    Starting price

    $0.0035 per US outbound SMS segment plus carrier fees

    Free plan

    Free email tier of 1,000 emails a month; free shared Inbox

    #10What it adds over Texting Blue

    • Dedicated numbers
    • Shared numbers
    • RCS
    • WhatsApp
    • Telegram

    Compare with Texting Blue

    Visit BirdRead more
11. 

    Telnyx

    Low per-part SMS pricing with carrier fees at cost

    Starting price

    $0.004 per US SMS part plus carrier fee

    Free plan

    Trial account with $5 testing credit

    #11What it adds over Texting Blue

    • Dedicated numbers
    • Line pooling
    • RCS
    • WhatsApp
    • Email

    Compare with Texting Blue

    Visit TelnyxRead more
12. 

    Vonage

    Messages API for SMS, RCS, WhatsApp, Viber and email

    Starting price

    $0.00860 per US SMS on a long virtual number, plus carrier fees

    Free plan

    Free credit at signup with no card, and a free Messages API Sandbox capped at 100 messages a month

    #12What it adds over Texting Blue

    • Dedicated numbers
    • Shared numbers
    • Line pooling
    • RCS
    • WhatsApp

    Compare with Texting Blue

    Visit VonageRead more
13. 

    Infobip

    Global CPaaS and Apple Messages for Business provider

    Starting price

    $0.0075 to $0.0083 per US SMS (indicative)

    Free plan

    60-day free trial, no card, up to 100 messages per channel to your verified number

    #13What it adds over Texting Blue

    • Dedicated numbers
    • Shared numbers
    • RCS
    • WhatsApp
    • Telegram

    Compare with Texting Blue

    Visit InfobipRead more
14. 

    Sinch

    CPaaS with 13 messaging channels in one API

    Starting price

    $0.0078 per US 10DLC SMS, plus carrier fees

    Free plan

    Free developer account with an SMS sandbox and test credit

    #14What it adds over Texting Blue

    • Dedicated numbers
    • RCS
    • WhatsApp
    • Telegram
    • Email

    Compare with Texting Blue

    Visit SinchRead more
15. 

    Claw Messenger

    iMessage for personal AI agents, no Mac needed

    Starting price

    $5/month for 250 messages

    Free plan

    7-day free trial, card required

    #15What it adds over Texting Blue

    • Group chats
    • Group management
    • Tapbacks
    • Threaded replies
    • Typing indicators

    Compare with Texting Blue

    Visit Claw MessengerRead more
16. 

    messages.dev

    TypeScript-first iMessage, RCS and SMS API

    Starting price

    $99/month per line

    Free plan

    Sandbox: 50 messages a day to your own paired phone

    #16What it adds over Texting Blue

    • Group chats
    • Tapbacks
    • Threaded replies
    • Typing indicators
    • Read receipts

    Compare with Texting Blue

    Visit messages.devRead more
17. 

    Apple Messages for Business

    Apple's official business chat in the Messages app

    Starting price

    Free from Apple; MSP fees vary

    Free plan

    Apple charges nothing; an MSP is still required

    #17What it adds over Texting Blue

    • Tapbacks
    • Typing indicators
    • Stickers
    • Attachments
    • Rich link previews

    Compare with Texting Blue

    Visit Apple Messages for BusinessRead more

Texting Blue vs the top alternatives

Texting Blue next to the 4 alternatives that support the most features on our list.

Feature	Texting Blue	Photon	Linq	Blooio	Sendblue
iMessage messaging
iMessage	SupportedSent and received by your own iPhone, which must stay online	SupportedManaged cloud lines, or your own Mac with the local provider	Supported	Supported	Supported
Group chats	Not listedAPI only documents one-to-one sends	SupportedOn the Business plan (dedicated lines)	SupportedPro plan. Up to 31 recipients. No read or delivery receipts in groups.	Supported	BetaGroup API is in beta on select plans. AI Agent plan can only reply in existing groups.
Group management	Not listed	SupportedCreate groups and add, remove or leave members; Business plan (dedicated lines)	SupportedAdd and remove participants and leave a group, iMessage groups only, 3-member minimum.	PartialCreate groups by API. Adding or removing members is marked coming soon (returns 501).	BetaAdd and remove participants in iMessage groups via the beta groups API.
Group name and photo	Not listed	SupportedRename groups and set group photos; Business plan (dedicated lines)	SupportedSet display_name and group_chat_icon on group chats.	SupportedRename groups and set or remove group icons.	SupportedRename groups and set group photos on supported lines.
Mentions	Not listedGroup chats are not documented	SupportedSend @mentions in multipart messages and read mention ranges on inbound	SupportedGroup chats only. Notifies iMessage recipients even in a muted chat.	Not listedA guide index lists mentions, but no mention field is documented.	Not listed
Tapbacks	Not listed	SupportedSix native tapbacks plus emoji reactions, send and receive	SupportedSix classic tapbacks or any emoji, send and receive via reaction webhooks.	SupportedAdd or remove tapbacks on any message; inbound reactions arrive as message.reaction events.	PartialSend classic tapbacks or any emoji. No inbound reaction events documented.
Threaded replies	Not listed	Supported	Supportedreply_to with optional part_index. iMessage only.	Supportedreply_to on sends.	Supportedreply_to on V2 iMessage lines, in direct and group chats.
Typing indicators	Not listed	Supported	SupportedSend and receive, in direct and group chats. iMessage only.	SupportedSend, and receive typing.started and typing.stopped events.	SupportedSend and receive. iMessage 1:1 only, not in groups.
Read receipts	Not listedMarketing mentions read receipts, but the API has no read status	SupportedMark chats read and receive read events; group receipts are best-effort	SupportedMark chats read and receive message.read. One-to-one chats only.	SupportedMark chats read and receive message.read events.	PartialCan mark chats read (1:1). Outbound statuses stop at DELIVERED, with no read status.
Edit and unsend	Not listed	SupportedEdit within 15 minutes and unsend within 2 minutes (Apple limits)	PartialEdit text up to 5 times within 15 minutes. Delete does not unsend from the recipient's device.	Not listed	Not supportedDocs say editing is not supported via API and delete does not unsend.
Message effects	Not listed	SupportedAll bubble and screen effects, including invisible ink	Supported11 screen and 4 bubble effects.	Supportedeffect field on text sends.	Supported13 send_style values.
Animated text effects	Not listed	SupportedPer-range effects such as bloom, shake, explode and jitter	Supportedtext_decorations animations: big, small, shake, nod, explode, ripple, bloom, jitter.	Not listed	Not listed
Stickers	Not supportedThe only plan on sale (Lite) is text only	SupportedPlace image stickers on any bubble with position, scale and rotation; sticker events inbound	SupportedPeel emoji or images onto messages, send stickers, or place them inline in text.	Not listed	Not listed
Formatted text	Not listed	SupportedMarkdown rendered as native bold, italic, underline and strikethrough	SupportedBold, italic, underline and strikethrough ranges, plus animated text. iMessage only.	SupportedMarkdown bold, italic, underline and strikethrough sent as iMessage rich text.	Not listed
Attachments	Not supportedLite is text only; media_url needs the Standard plan, listed as coming soon	SupportedFiles up to 100 MiB by default, including Live Photos	SupportedUp to 10MB by URL, 100MB with pre-upload.	Supported	SupportedUp to 100MB on iMessage, 5MB on SMS.
Live Photos	Not supportedThe only plan on sale (Lite) is text only	SupportedHEIC still plus MOV companion uploaded as one Live Photo	Not listed	Not listed	Not listed
Rich link previews	Not listed	Supportedrichlink() asks Messages to render its own preview	Supportedlink parts render as rich previews on iMessage and RCS.	Supportedrich_link bubbles with image and title overrides.	PartialDocs say links expand only after the recipient saves your contact.
Voice messages	Not supportedThe only plan on sale (Lite) is text only	Supported	SupportedDedicated voice memo endpoint renders the native iMessage voice bubble.	SupportedA single audio file is sent as a native voice memo.	SupportedSend .caf files to render as inline voice notes.
Contact cards	Not supported	SupportedvCard or structured contacts, plus the bot's own native contact card	SupportedSend .vcf files as media parts.	Not listedAttachments accept other files, but .vcf is not named. Name and Photo cards are documented.	SupportedSend .vcf files via media_url.
Polls	Not supported	SupportedCreate, vote, add options and receive poll events; all managed plans	SupportedCreate, add options, vote and read tallies, with poll webhooks. Not as a chat's first message.	SupportedSend, vote and read results, with poll webhooks.	Not listed
Chat backgrounds	Not listed	Supported	SupportedColor, animated or photo backgrounds, in direct and group chats.	SupportedImage backgrounds only.	Not listed
Location sharing	Not supportedThe only plan on sale (Lite) is text only	SupportedFind My requests and live location; Business plan	SupportedRequest, read and stop Find My shares. Live location is a $79/mo add-on on Pro.	PartialReads Find My locations of contacts already sharing. Location access is provisioned on request.	SupportedFind My request, read and live watch. Dedicated iMessage lines only.
iMessage apps	Not supported	SupportedCustom and live app cards; iMessage mini apps on the Business plan	SupportedPro plan. Cards from your own Messages extension, or Linq-hosted cards (Experiences).	SupportedCustom bubbles for your own iMessage app extension, sent and received.	SupportedApp Cards for your own Messages extension. V2 lines, not on the free plan.
Live app cards	Not supported	SupportedEdit an app card in place and render live UI without a new bubble	SupportedUpdate App Card replaces a delivered iMessage app or Experience card in place.	Not supportedDocs say a send cannot continue an app session; each bubble starts a new one.	PartialUpdates go out as new messages in the same App Card session; Sendblue says the original is not edited.
Sender name and photo	Not listed	SupportedShares the agent's name and photo automatically; Business plan	SupportedContact card API sets name and photo, shared per chat via Name and Photo Sharing.	SupportedSet name and avatar per number and share the card into a chat.	SupportedName and Photo Sharing profile per line, shared into direct iMessage chats.
FaceTime calls	Not supportedCalls are listed only for the Business plan, marked coming soon	Not listed	Not supportedDocs say the API does not place or answer calls.	PartialOn request for dedicated lines. Docs say the FaceTime API is disabled for now (returns 501).	PartialOutbound FaceTime audio over WebRTC (Agora). Needs a purchased FaceTime line.
Delivery status	PartialSent and failed on Lite; delivered events need Standard, coming soon	SupportedSent, delivered, read and send-error fields per message	Supportedsent, delivered, read and failed webhooks. Groups report sent only.	Supported	SupportedStatus callbacks from REGISTERED through SENT or DELIVERED.
iMessage availability check	Not listed	SupportedCheck if a number or email can get iMessage, SMS or RCS before sending	Supportedcheck_imessage and check_rcs endpoints.	SupportedLive per-number iMessage, SMS and RCS capability lookup.	SupportedLookup API checks a phone number or email for iMessage.
Focus and Notify Anyway	Not listed	SupportedCheck if a recipient has Focus on, then trigger Notify Anyway	Not listed	SupportedRead a contact's Focus status and send Notify Anyway. Direct chats only.	Not listed
Numbers and delivery
Managed lines	Not supportedRuns on your own iPhone, which must stay connected	SupportedSpectrum Cloud runs the Mac fleet; no Mac needed	Supported	SupportedPre-warmed numbers claimed self-serve from the dashboard.	Supported
Dedicated numbers	Not supportedProvider: no provisioned business numbers	Supported$250 per line per month on Business	SupportedPaid lines are dedicated. Provisioned by Linq, no self-serve number API.	Supported	Supported
Shared numbers	Not supported	SupportedFree and Pro route each user through a managed shared pool	SupportedFree Hobby tier uses a Shared Line, inbound-first, 20 contacts.	SupportedStarter and Commercial Shared use managed shared pools.	SupportedFree sandbox uses a shared number with verified contacts only.
Bring your own number	SupportedUses the number already on your iPhone	SupportedYour own Apple ID when self-hosting on a Mac, and your own number for WhatsApp Business	Not listed	PartialiMessage only by porting on dedicated plans. Your own Twilio number can carry SMS.	PartialOnly by porting the number in, which adds 3 to 5 days.
Line pooling	Not listed	SupportedBusiness: auto-scale adds lines and a routing endpoint balances users	SupportedManaged load balancing (Pro): send without from and Linq picks and fails over lines.	SupportedNumber pools and channel priorities; a contact keeps one number in a pool.	SupportedNumber pooling with sticky sending. Automatic line selection needs account enablement.
SMS fallback	SupportedUses the iPhone's own send-as-SMS setting	SupportedOn every plan per pricing; carrier rules apply to fallback traffic	Supported	Supported	Supported
RCS fallback	Not listed	Supported	SupportedOrder is iMessage, then RCS, then SMS.	Supported	SupportediMessage, then RCS, then SMS. RCS on V2 lines.
Outbound-first messaging	SupportedSend to any number; Lite caps volume at 100 messages a day	SupportedBusiness plan, up to 50 new contacts per line per day	SupportedFree Hobby tier is inbound-first. Docs recommend inbound-first flows to avoid flagging.	SupportedShared plans cap new conversations per day. Inbound plan is reply-only.	SupportedFull outbound on Enterprise or Blue Ocean; Free and AI Agent plans are inbound-first
Calls on the iMessage number	Not supportedCalls are listed only for the Business plan, marked coming soon	SupportedPlace and receive SIP calls from the line people already text	PartialAPI forwards inbound calls on the line; outbound needs caller-ID masking via another provider.	SupportedVoice calling and call forwarding on Commercial and Enterprise Dedicated lines.	SupportedDashboard calls and FaceTime from the texting number; API calls via your Twilio caller ID.
Other channels
SMS	PartialSent by the iPhone when iMessage is unavailable; FAQ says not the main use case	BetaStandalone SMS and MMS numbers with 10DLC in the 2.0 beta; SMS fallback on iMessage lines today	Supported	SupportedFrom the iMessage line, or through your own Twilio account.	Supported
RCS	Not listed	PartialSent on the iMessage line when the recipient cannot get iMessage	Supported	SupportedRCS fallback on numbers, plus an RCS for Business channel type.	SupportedV2 lines.
WhatsApp	Not supportedNot offered; the free website widget only links out to WhatsApp	SupportedWhatsApp Business, one-to-one, on the Business plan	BetaSeparate WhatsApp API in beta. Access by request, no SLA.	SupportedWhatsApp Business Platform (Cloud API) on the v4 API.	Not supportedNot offered
Telegram	Not supportedNot offered	Supported	Not supportedNot offered	Not supportedNot offered	Not supported
Slack	Not supported	Supported@spectrum-ts/slack provider on npm and GitHub	Not supported	Not supported	Not listed
Email	Not supported	BetaYour own domain with DKIM, SPF and inbound MX in the 2.0 beta	Not supportedNot offered. iMessage can be sent to Apple ID email handles.	Not supportedNot offered. iMessage can be sent to email handles.	Not supportedNot offered. iMessage can be sent to Apple ID email addresses.
Phone calls	Not supportedCalls are listed only for the Business plan, marked coming soon	SupportedSIP calls on iMessage lines; the 2.0 beta adds calls on SMS numbers	PartialAPI does not place or answer calls; it forwards inbound calls. Calling lives in the Linq Blue app.	PartialVoice calling and forwarding on dedicated plans. No calling API documented.	PartialNo native calling API. Dashboard calls, outbound via your Twilio caller ID, inbound forwarding.
Apple Messages for Business	Not supportedNot offered	BetaListed as available in the 2.0 beta	Not listedAI context page mentions it, but no product page or docs were found.	SupportedBlooio says it is an official Apple Messages for Business MSP.	Not supportedNot offered
Unified channel API	PartialSame API for iMessage and the iPhone's SMS fallback only	SupportedOne Spectrum SDK across channels, and one REST model in the 2.0 beta	PartialiMessage, RCS and SMS share one API. WhatsApp is a separate API with its own keys and SDKs.	Supportedv4 API covers iMessage, SMS, RCS, WhatsApp and Apple Messages for Business.	SupportedOne API for iMessage, RCS and SMS, the only channels offered.
Developer tools
REST API	Supported	SupportedREST API for projects and lines; sending over REST in the 2.0 beta	Supported	Supported	Supported
TypeScript SDK	Not listedSite mentions SDKs, but docs show only raw HTTP examples	Supportedspectrum-ts, plus low-level iMessage and WhatsApp SDKs	Supported@linqapp/sdk	Supported@blooio/sdk	Supportedsendblue on npm.
Python SDK	Not listed	Betaphotonhq-api on PyPI, for the 2.0 beta API	Supportedlinq-python	Supportedblooio on PyPI.	Supportedsendblue on PyPI.
Other SDKs	Not listed	SupportedGo client for Advanced iMessage; Rust and Go clients for the 2.0 API	SupportedOfficial Go SDK.	SupportedGo and Java SDKs.	PartialGo, Rust and Ruby packages, listed as community packages.
CLI	Not listed	Supported@photon-ai/cli manages projects, lines, users and billing	Supported@linqapp/cli: signup, sending, and a local webhook listener.	Not listed	Supported@sendblue/cli: signup, messaging, contacts and webhooks.
Webhooks	Supportedmessage.received, sent, delivered and failed events with retries	Supported	Supported	Supported	Supported
Signed webhooks	SupportedHMAC-SHA256 in x-textingblue-signature	SupportedHMAC-SHA256, plus Standard Webhooks signatures	SupportedHMAC-SHA256, Standard Webhooks format, with replay protection.	SupportedHMAC-SHA256 with timestamp, rotatable secrets and delivery replay.	PartialSends your shared secret in an sb-signing-secret header. No HMAC signature.
MCP server	Not listed	SupportedHosted MCP server, plus an MCP server for the docs	Supported@linqapp/sdk-mcp with docs search and code execution tools.	SupportedHosted at mcp.blooio.com/v4.	Supportedsendblue-api-mcp via npx.
Open source	Not listedOnly the free website contact widget is described as open source	SupportedMIT: spectrum-ts, imessage-kit and most SDKs	PartialSDKs, CLI and adapters are Apache-2.0 or MIT on GitHub. The messaging platform is closed.	PartialSDKs are Apache-2.0 on GitHub. The messaging platform is closed.	PartialSDKs and CLI are MIT or Apache-2.0 on GitHub. The messaging platform is closed.
Self-hosting	Not listedHosted dashboard and API; only the widget script can be self-hosted	SupportedRun the open-source core on your own Mac and number, no Spectrum Cloud	Not supportedLinq describes itself as fully managed, in contrast to self-hosted options.	Not supportedBlooio says it is not a self-hosted iMessage relay.	Not listedSold as a hosted service on Sendblue's Apple devices; self-hosting is not mentioned.
Local testing	Not listedtb_test_ sandbox keys are listed as coming soon	SupportedTerminal chat UI provider, no phone or number needed	Not listedThe CLI streams webhooks locally, but tests still use a real phone.	Not listed	Not listed
Custom channel providers	Not listed	SupporteddefinePlatform plugs any interface into the same Spectrum API	Not listed	PartialYour own Twilio account can be added as an SMS channel under the same API.	Not listed
Event replay	PartialWebhooks retried for about 6 minutes; missed messages can be listed through the API	SupportedCatch up on events after a disconnect from a durable sequence	PartialRetries for 30 minutes; after that, re-fetch chats or ask Linq for a manual replay.	SupportedWebhook delivery logs with replay, plus an events feed to list past events.	PartialNo replay. Docs say to repair gaps by listing messages updated since a timestamp.
OpenTelemetry	Not listed	SupportedOpt-in messaging traces in spectrum-ts, and traces in the 2.0 beta dashboard	PartialW3C trace IDs on every response and webhook for OTel backends. No export of Linq spans by default.	Not listed	Not listed
No-code integrations	PartialSite lists n8n, Zapier and Make; its FAQ says Zapier and Make are coming soon	Supportedn8n community nodes and a Dify plugin	SupportedLinq Blue works as a GoHighLevel messaging provider. No n8n, Make or Zapier found for the API.	SupportedGoHighLevel, n8n, Make, Zapier and IFTTT.	SupportedZapier, Make and GoHighLevel. Docs FAQ says n8n resources are coming soon.
CRM integrations	Not supportedProvider points to webhooks and the API for any CRM; no native CRM apps	Not listed	SupportedVia Linq Blue: GoHighLevel, HubSpot and Salesforce.	SupportedGoHighLevel and HubSpot.	SupportedGoHighLevel, HubSpot, Salesforce, Close and Monday.com.
Built for AI agents
Agent framework	Not listed	SupportedSpectrum is a multi-channel agent framework with streaming replies	PartialNo own framework. Maintains a Vercel Chat SDK adapter and OpenClaw and Hermes plugins.	PartialNo own framework. Community Chat SDK adapter, plus plugins for Hermes Agent and eve.	PartialNo own framework. Maintains a Vercel Chat SDK adapter.
Agent framework integrations	Not listed	SupportedVercel Chat SDK, Mastra, LangChain, Convex and others	SupportedLinq-maintained Vercel Chat SDK adapter, plus OpenClaw and Hermes Agent plugins.	SupportedBlooio publishes Hermes Agent and eve channel plugins. The Chat SDK adapter is a community package.	SupportedSendblue-maintained Vercel Chat SDK adapter.
Streaming replies	Not listed	SupportedAI output streams into one iMessage bubble, edited in place	Not supportedDocs say the Chat SDK adapter buffers streams into one final message.	Not listed	Not supportedDocs say message editing is not supported via the API.
Agent group chats	Not listed	BetaAgents find other agents and add them to a group chat (2.0 beta)	Not listed	Not listed	BetaA line can add another of your own dedicated lines to a group, via the beta groups API.
Human handoff	PartialShared inbox where staff can reply in any thread; no agent handoff controls	BetaA person can reply in a conversation from the 2.0 beta Inbox	Not listed	PartialHandoff webhook events, documented for Apple Messages for Business chats.	SupportedShared team inboxes with assignment, and agents that escalate to a rep.
Audit logs	PartialPer-message trail of which team member sent what and when	BetaAPI logs and traces in the 2.0 beta dashboard	SupportedDashboard Activity page plus account-change webhooks with actor and origin.	PartialLists audit logging among internal security controls. No customer audit log documented.	PartialSecurity page says all API requests are logged. No customer-facing audit log documented.
Message history API	SupportedList and filter messages with cursor pagination	SupportedList and get messages per chat	Supported	SupportedRetention runs 90 days to unlimited depending on plan.	Supported
Plans and compliance
Free plan	Partial3-day free trial only	SupportedUp to 10 users on shared lines	SupportedHobby: $0, up to 20 contacts, through the CLI.	PartialFree trial is 20 messages total on a shared number. Apple Messages for Business has a free sandbox.	SupportedFree sandbox: shared number, up to 10 verified contacts, no webhooks.
Public pricing	Supported	Supported	SupportedPro from $260/mo. Enterprise is custom.	SupportedNumber plans from $39/mo. Apple Messages for Business is custom, per monthly active user.	SupportedAI Agent plan at $100/mo per line. Enterprise is custom.
No per-message fees	Supported$19 per number per month, capped at 100 messages a day	SupportedNo per-message fees for iMessage, WhatsApp or Telegram; SMS, voice and email are metered in the 2.0 beta	Supported	SupportedNumber plans are flat. Apple Messages for Business is billed per monthly active user.	Supported
Uptime SLA	Not supportedTerms: no guarantee of uninterrupted access; SLA listed only for a coming-soon plan	SupportedContractual SLA on the Enterprise plan	SupportedContractual SLAs on the Enterprise plan; marketing cites 99.95%	SupportedContractual SLA with a signed Enterprise Order Form; 99.9% uptime target	Supported99.99% uptime SLA on the Enterprise plan
Isolated infrastructure	PartialEach line is your own iPhone; dashboard and API are shared	SupportedEach line runs in an isolated, dedicated environment	SupportedDedicated lines across 4 data centers on paid plans; Hobby uses a shared line	PartialDedicated numbers are isolated to your workspace. No per-customer servers or devices described.	SupportedA dedicated HIPAA instance for HIPAA customers
SOC 2 Type II	Not listedAbout page mentions 'SOC 2 practices'; no report or certification stated	SupportedStated on photon.codes	SupportedType I and Type II, reports for 2022, 2024, 2025 and 2026.	Not supportedTrust Center lists SOC 2 Type 1 and Type 2 as in progress.	SupportedSOC 2 Type II, report on request.
GDPR	SupportedGDPR page; DPA available on request	SupportedPrivacy policy covers GDPR rights and SCC transfers	SupportedDPA covers GDPR and UK GDPR, with Standard Contractual Clauses.	SupportedTrust Center marks GDPR as passing.	SupportedPrivacy policy says Sendblue adheres to GDPR. DPAs on request.

Checked on each provider's own site and docs on 2026-10-25. “Not listed” means the provider does not mention it.