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Photon vs Messente

Compare Photon and Messente 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)
Visit PhotonRead more

Messente

Estonian SMS, Viber, WhatsApp and RCS messaging API
Starting price
0.0136 EUR per US SMS segment (pay as you go)
Free plan
Free signup with test messages, no card
Visit MessenteRead more

Photon supports 75 of the 77 features compared here, and Messente supports 19.

Where Photon is ahead

and 49 more in the table below.

Where Messente is ahead

Feature comparison

FeaturePhotonMessente
iMessage messaging
iMessage
SupportedManaged cloud lines, or your own Mac with the local provider
Not supportedNo iMessage support
Group chats
SupportedOn the Business plan (dedicated lines)
Not supported
Group management
SupportedCreate groups and add, remove or leave members; Business plan (dedicated lines)
Not supported
Group name and photo
SupportedRename groups and set group photos; Business plan (dedicated lines)
Not supported
Mentions
SupportedSend @mentions in multipart messages and read mention ranges on inbound
Not supported
Tapbacks
SupportedSix native tapbacks plus emoji reactions, send and receive
Not supported
Threaded replies
Supported
Not supported
Typing indicators
Supported
Not supported
Read receipts
SupportedMark chats read and receive read events; group receipts are best-effort
Not supported
Edit and unsend
SupportedEdit within 15 minutes and unsend within 2 minutes (Apple limits)
Not supported
Message effects
SupportedAll bubble and screen effects, including invisible ink
Not supported
Animated text effects
SupportedPer-range effects such as bloom, shake, explode and jitter
Not supported
Stickers
SupportedPlace image stickers on any bubble with position, scale and rotation; sticker events inbound
Not supported
Formatted text
SupportedMarkdown rendered as native bold, italic, underline and strikethrough
Not supported
Attachments
SupportedFiles up to 100 MiB by default, including Live Photos
Not supported
Live Photos
SupportedHEIC still plus MOV companion uploaded as one Live Photo
Not supported
Rich link previews
Supportedrichlink() asks Messages to render its own preview
Not supported
Voice messages
Supported
Not supported
Contact cards
SupportedvCard or structured contacts, plus the bot's own native contact card
Not supported
Polls
SupportedCreate, vote, add options and receive poll events; all managed plans
Not supported
Chat backgrounds
Supported
Not supported
Location sharing
SupportedFind My requests and live location; Business plan
Not supported
iMessage apps
SupportedCustom and live app cards; iMessage mini apps on the Business plan
Not supported
Live app cards
SupportedEdit an app card in place and render live UI without a new bubble
Not supported
Sender name and photo
SupportedShares the agent's name and photo automatically; Business plan
Not supported
FaceTime calls
Not listed
Not supported
Delivery status
SupportedSent, delivered, read and send-error fields per message
Not supported
iMessage availability check
SupportedCheck if a number or email can get iMessage, SMS or RCS before sending
Not supported
Focus and Notify Anyway
SupportedCheck if a recipient has Focus on, then trigger Notify Anyway
Not supported
Numbers and delivery
Managed lines
SupportedSpectrum Cloud runs the Mac fleet; no Mac needed
Not supportedNo iMessage support
Dedicated numbers
Supported$250 per line per month on Business
PartialInbound numbers for two-way SMS are managed in the dashboard; no number purchase API found
Shared numbers
SupportedFree and Pro route each user through a managed shared pool
Not listed
Bring your own number
SupportedYour own Apple ID when self-hosting on a Mac, and your own number for WhatsApp Business
Not listed
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
Not supportedNo iMessage support
RCS fallback
Supported
Not supported
Outbound-first messaging
SupportedBusiness plan, up to 50 new contacts per line per day
SupportedBusiness-initiated SMS with branded sender names
Calls on the iMessage number
SupportedPlace and receive SIP calls from the line people already text
Not supportedNo iMessage support
Other channels
SMS
BetaStandalone SMS and MMS numbers with 10DLC in the 2.0 beta; SMS fallback on iMessage lines today
Supported
RCS
PartialSent on the iMessage line when the recipient cannot get iMessage
SupportedNeeds a dedicated RCS account setup by Messente
WhatsApp
SupportedWhatsApp Business, one-to-one, on the Business plan
Supported
Telegram
Supported
Not supportedNot offered
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
SupportedOmnichannel API sends SMS, Viber, WhatsApp and RCS with one message model
Developer tools
REST API
SupportedREST API for projects and lines; sending over REST in the 2.0 beta
Supported
TypeScript SDK
Supportedspectrum-ts, plus low-level iMessage and WhatsApp SDKs
Supportedmessente_api on npm
Python SDK
Betaphotonhq-api on PyPI, for the 2.0 beta API
Supportedmessente-api on PyPI
Other SDKs
SupportedGo client for Advanced iMessage; Rust and Go clients for the 2.0 API
SupportedPHP, Java, Ruby and .NET
CLI
Supported@photon-ai/cli manages projects, lines, users and billing
Not listed
Webhooks
Supported
SupportedDelivery report callbacks and inbound SMS callbacks
Signed webhooks
SupportedHMAC-SHA256, plus Standard Webhooks signatures
SupportedHMAC-SHA256 in the X-Messente-Signature header
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 supportedClosed platform; the API libraries are open source on GitHub
Self-hosting
SupportedRun the open-source core on your own Mac and number, no Spectrum Cloud
Not supportedHosted cloud service only
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
SupportedZapier
CRM integrations
Not listed
SupportedBuilt-in Salesforce integration
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
Not listedTwo-way SMS page mentions a shared inbox; no handoff is described
Audit logs
BetaAPI logs and traces in the 2.0 beta dashboard
PartialEnterprise customers get access control records and message logs
Message history API
SupportedList and get messages per chat
PartialFetch a message's delivery report by ID; no conversation history API found
Plans and compliance
Free plan
SupportedUp to 10 users on shared lines
PartialFree signup with a few test messages, no card
Public pricing
Supported
SupportedA-Z SMS price list per country
No per-message fees
SupportedNo per-message fees for iMessage, WhatsApp or Telegram; SMS, voice and email are metered in the 2.0 beta
Not supportedBilled per SMS segment
Uptime SLA
SupportedContractual SLA on the Enterprise plan
Not listed
Isolated infrastructure
SupportedEach line runs in an isolated, dedicated environment
Not listed
SOC 2 Type II
SupportedStated on photon.codes
Not listed
GDPR
SupportedPrivacy policy covers GDPR rights and SCC transfers
SupportedData hosted in Germany and Finland

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

Messente

Pay-as-you-go has no monthly fee and charges per SMS segment by country (0.0136 EUR to the US, 0.0447 EUR to the UK, 0.0767 EUR to Germany); a commitment plan lowers rates, and WhatsApp and Viber start from 0.001 EUR plus Meta or Rakuten fees and a Messente subscription.

Pricing model: per SMS segment, pay as you go

Source

Which should you choose?

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

Choose Messente if you need CRM integrations.

Frequently asked questions

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More Messente comparisons

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