Photon vs BlueSendr

Compare Photon and BlueSendr side by side: iMessage features, channels, developer tools, pricing and compliance, checked on each provider's own site.

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)

BlueSendr

iMessage in GoHighLevel from your own Mac and iPhone
Starting price
$49/month (billed annually)
Free plan
None found

Photon supports 75 of the 77 features compared here, and BlueSendr supports 14.

Feature comparison

FeaturePhotonBlueSendr
iMessage messaging
iMessage
SupportedManaged cloud lines, or your own Mac with the local provider
SupportedNative iMessages from your own Mac and iPhone line, sent and answered from your CRM.
Group chats
SupportedOn the Business plan (dedicated lines)
Not listed
Group management
SupportedCreate groups and add, remove or leave members; Business plan (dedicated lines)
Not listed
Group name and photo
SupportedRename groups and set group photos; Business plan (dedicated lines)
Not listed
Mentions
SupportedSend @mentions in multipart messages and read mention ranges on inbound
Not listed
Tapbacks
SupportedSix native tapbacks plus emoji reactions, send and receive
Not listed
Threaded replies
Supported
Not listed
Typing indicators
Supported
Not listedHomepage names typing indicators as an iMessage benefit; how they surface in the CRM is not documented.
Read receipts
SupportedMark chats read and receive read events; group receipts are best-effort
Not listedHomepage names read receipts as an iMessage benefit; how they surface in the CRM is not documented.
Edit and unsend
SupportedEdit within 15 minutes and unsend within 2 minutes (Apple limits)
Not listed
Message effects
SupportedAll bubble and screen effects, including invisible ink
Not listed
Animated text effects
SupportedPer-range effects such as bloom, shake, explode and jitter
Not listed
Stickers
SupportedPlace image stickers on any bubble with position, scale and rotation; sticker events inbound
Not listed
Formatted text
SupportedMarkdown rendered as native bold, italic, underline and strikethrough
Not listed
Attachments
SupportedFiles up to 100 MiB by default, including Live Photos
Not listedHomepage mentions high-res media sharing; attachment handling is not documented.
Live Photos
SupportedHEIC still plus MOV companion uploaded as one Live Photo
Not listed
Rich link previews
Supportedrichlink() asks Messages to render its own preview
Not listed
Voice messages
Supported
Not listed
Contact cards
SupportedvCard or structured contacts, plus the bot's own native contact card
Not listed
Polls
SupportedCreate, vote, add options and receive poll events; all managed plans
Not listed
Chat backgrounds
Supported
Not listed
Location sharing
SupportedFind My requests and live location; Business plan
Not listed
iMessage apps
SupportedCustom and live app cards; iMessage mini apps on the Business plan
Not listed
Live app cards
SupportedEdit an app card in place and render live UI without a new bubble
Not listed
Sender name and photo
SupportedShares the agent's name and photo automatically; Business plan
Not listed
FaceTime calls
Not listed
Not listed
Delivery status
SupportedSent, delivered, read and send-error fields per message
Not listed
iMessage availability check
SupportedCheck if a number or email can get iMessage, SMS or RCS before sending
Not listed
Focus and Notify Anyway
SupportedCheck if a recipient has Focus on, then trigger Notify Anyway
Not listed
Numbers and delivery
Managed lines
SupportedSpectrum Cloud runs the Mac fleet; no Mac needed
Not supportedYou run your own Mac (or a rented virtual Mac) and iPhone line.
Dedicated numbers
Supported$250 per line per month on Business
Not supportedUses your own number and iCloud account; no numbers are provisioned.
Shared numbers
SupportedFree and Pro route each user through a managed shared pool
Not supportedNot offered; uses your own iCloud account.
Bring your own number
SupportedYour own Apple ID when self-hosting on a Mac, and your own number for WhatsApp Business
SupportedYour own phone number and iCloud account on your own iPhone and Mac.
Line pooling
SupportedBusiness: auto-scale adds lines and a routing endpoint balances users
Not listed
SMS fallback
SupportedOn every plan per pricing; carrier rules apply to fallback traffic
PartialFAQ: depends on your iPhone's own settings; a custom SMS provider fallback is on the roadmap.
RCS fallback
Supported
Not listed
Outbound-first messaging
SupportedBusiness plan, up to 50 new contacts per line per day
SupportedBulk campaigns through CRM drip mode; the help center advises one message a minute.
Calls on the iMessage number
SupportedPlace and receive SIP calls from the line people already text
Not listed
Other channels
SMS
BetaStandalone SMS and MMS numbers with 10DLC in the 2.0 beta; SMS fallback on iMessage lines today
PartialOnly through your iPhone's own SMS fallback setting.
RCS
PartialSent on the iMessage line when the recipient cannot get iMessage
Not listed
WhatsApp
SupportedWhatsApp Business, one-to-one, on the Business plan
Not supportedNot offered
Telegram
Supported
Not supported
Slack
Supported@spectrum-ts/slack provider on npm and GitHub
Not supported
Email
BetaYour own domain with DKIM, SPF and inbound MX in the 2.0 beta
Not supported
Phone calls
SupportedSIP calls on iMessage lines; the 2.0 beta adds calls on SMS numbers
Not supported
Apple Messages for Business
BetaListed as available in the 2.0 beta
Not supported
Unified channel API
SupportedOne Spectrum SDK across channels, and one REST model in the 2.0 beta
Not supportedSingle channel
Developer tools
REST API
SupportedREST API for projects and lines; sending over REST in the 2.0 beta
Not listedNo API is documented; BlueSendr works through a CRM marketplace app.
TypeScript SDK
Supportedspectrum-ts, plus low-level iMessage and WhatsApp SDKs
Not listed
Python SDK
Betaphotonhq-api on PyPI, for the 2.0 beta API
Not listed
Other SDKs
SupportedGo client for Advanced iMessage; Rust and Go clients for the 2.0 API
Not listed
CLI
Supported@photon-ai/cli manages projects, lines, users and billing
Not listed
Webhooks
Supported
Not listedNo webhooks are documented; messages sync straight into the CRM.
Signed webhooks
SupportedHMAC-SHA256, plus Standard Webhooks signatures
Not listed
MCP server
SupportedHosted MCP server, plus an MCP server for the docs
Not listed
Open source
SupportedMIT: spectrum-ts, imessage-kit and most SDKs
Not supportedLicensed macOS app; terms forbid copying or reverse engineering.
Self-hosting
SupportedRun the open-source core on your own Mac and number, no Spectrum Cloud
SupportedThe macOS app runs on your own Mac and message content stays on the device.
Local testing
SupportedTerminal chat UI provider, no phone or number needed
Not listed
Custom channel providers
SupporteddefinePlatform plugs any interface into the same Spectrum API
Not listed
Event replay
SupportedCatch up on events after a disconnect from a durable sequence
Not listed
OpenTelemetry
SupportedOpt-in messaging traces in spectrum-ts, and traces in the 2.0 beta dashboard
Not listed
No-code integrations
Supportedn8n community nodes and a Dify plugin
SupportedLeadConnector (GoHighLevel) marketplace app, with CRM bulk actions in drip mode.
CRM integrations
Not listed
SupportedDocumented for LeadConnector (GoHighLevel); homepage shows HubSpot, Salesforce and Pipedrive logos.
Built for AI agents
Agent framework
SupportedSpectrum is a multi-channel agent framework with streaming replies
Not listed
Agent framework integrations
SupportedVercel Chat SDK, Mastra, LangChain, Convex and others
Not listed
Streaming replies
SupportedAI output streams into one iMessage bubble, edited in place
Not listed
Agent group chats
BetaAgents find other agents and add them to a group chat (2.0 beta)
Not listed
Human handoff
BetaA person can reply in a conversation from the 2.0 beta Inbox
PartialReplies land in the CRM inbox where your team answers; no agent handoff controls.
Audit logs
BetaAPI logs and traces in the 2.0 beta dashboard
Not listed
Message history API
SupportedList and get messages per chat
PartialConversations sync to CRM contact records; no history API.
Plans and compliance
Free plan
SupportedUp to 10 users on shared lines
Not listed
Public pricing
Supported
Supported
No per-message fees
SupportedNo per-message fees for iMessage, WhatsApp or Telegram; SMS, voice and email are metered in the 2.0 beta
SupportedFlat $49 a month billed annually, unlimited messages.
Uptime SLA
SupportedContractual SLA on the Enterprise plan
Not supportedTerms: no guarantee of software uptime or uninterrupted operation.
Isolated infrastructure
SupportedEach line runs in an isolated, dedicated environment
SupportedRuns on your own Mac; BlueSendr says message content never leaves the device.
SOC 2 Type II
SupportedStated on photon.codes
Not listed
GDPR
SupportedPrivacy policy covers GDPR rights and SCC transfers
PartialTerms list data rights for GDPR regions; no DPA found.

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

Pricing

Photon

Free plan, Pro at $25/month, Business at $250 per dedicated line per month, and custom Enterprise; the 2.0 beta adds metered SMS, voice and email.

Pricing model: plan tiers plus flat fee per dedicated line

Source

BlueSendr

One plan at $49 a month billed annually for one business connection with unlimited messages, plus a limited-time lifetime license at $500 for three connections.

Pricing model: flat subscription or one-time lifetime license, no per-message fees

Source

Which should you choose?

Choose Photon if you need group chats, group management, group name and photo and mentions.

Choose BlueSendr if you need CRM integrations.

Frequently asked questions

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