Photon vs Bird

Compare Photon and Bird 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)

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

Photon supports 75 of the 77 features compared here, and Bird supports 36.

Feature comparison

FeaturePhotonBird
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
SupportedLocal, mobile, toll-free and short code numbers by country
Shared numbers
SupportedFree and Pro route each user through a managed shared pool
SupportedBird-managed shared short codes; built-in SMS templates pick the sender
Bring your own number
SupportedYour own Apple ID when self-hosting on a Mac, and your own number for WhatsApp Business
PartialWhatsApp coexistence and verified voice caller IDs only; no hosted SMS found
Line pooling
SupportedBusiness: auto-scale adds lines and a routing endpoint balances users
Not supportedNo sender pool; the sender is set per send
SMS fallback
SupportedOn every plan per pricing; carrier rules apply to fallback traffic
Not supportedNo iMessage support; RCS and push can fall back to SMS
RCS fallback
Supported
Not supportedNo iMessage support
Outbound-first messaging
SupportedBusiness plan, up to 50 new contacts per line per day
SupportedBusiness-initiated SMS; WhatsApp needs approved templates
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
PartialSMS only in the API; outbound MMS not supported yet (media_urls reserved)
RCS
PartialSent on the iMessage line when the recipient cannot get iMessage
BetaPrivate beta with limited access
WhatsApp
SupportedWhatsApp Business, one-to-one, on the Business plan
Supported
Telegram
Supported
PartialVerify one-time passcodes only, through Telegram Gateway
Slack
Supported@spectrum-ts/slack provider on npm and GitHub
Not listed
Email
BetaYour own domain with DKIM, SPF and inbound MX in the 2.0 beta
SupportedIncludes the SparkPost email platform
Phone calls
SupportedSIP calls on iMessage lines; the 2.0 beta adds calls on SMS numbers
SupportedVoice over SIP trunks, with call sequences
Apple Messages for Business
BetaListed as available in the 2.0 beta
Supported
Unified channel API
SupportedOne Spectrum SDK across channels, and one REST model in the 2.0 beta
PartialOne REST API and SDK, but each channel has its own send endpoint and payload
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
Supported@messagebird/sdk on npm
Python SDK
Betaphotonhq-api on PyPI, for the 2.0 beta API
Supportedmessagebird-sdk on PyPI
Other SDKs
SupportedGo client for Advanced iMessage; Rust and Go clients for the 2.0 API
SupportedGo and PHP; Swift and Kotlin clients for Realtime only
CLI
Supported@photon-ai/cli manages projects, lines, users and billing
Supportedbird CLI with JSON output, also runs the MCP server locally
Webhooks
Supported
Supported
Signed webhooks
SupportedHMAC-SHA256, plus Standard Webhooks signatures
SupportedStandard Webhooks, HMAC-SHA256
MCP server
SupportedHosted MCP server, plus an MCP server for the docs
SupportedHosted at mcp.bird.com with OAuth, or local over stdio
Open source
SupportedMIT: spectrum-ts, imessage-kit and most SDKs
Not supportedClosed platform; SDKs, n8n node and agent skills are MIT-licensed
Self-hosting
SupportedRun the open-source core on your own Mac and number, no Spectrum Cloud
PartialOnly the PowerMTA email software is licensed for your own servers
Local testing
SupportedTerminal chat UI provider, no phone or number needed
PartialSimulated SMS destinations and an email sandbox, no handset needed; SMS tests are billed
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
SupportedReplay API for failed deliveries from a 3-day attempt log; 8 retries over about 27.5 hours
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 app and verified n8n node; Make listed as coming soon
CRM integrations
Not listed
SupportedAttio app; HubSpot and Salesforce connectors on the Engagement Platform
Built for AI agents
Agent framework
SupportedSpectrum is a multi-channel agent framework with streaming replies
PartialAI Employees builder on the Engagement Platform (app.bird.com) only
Agent framework integrations
SupportedVercel Chat SDK, Mastra, LangChain, Convex and others
PartialRoutes inbound messages to Claude Managed Agents and Grok Bot; no Vercel AI SDK, LangChain or Mastra
Streaming replies
SupportedAI output streams into one iMessage bubble, edited in place
Not listedNo edit or streaming API for SMS, WhatsApp or Apple Messages found; Realtime pub/sub serves your own app
Agent group chats
BetaAgents find other agents and add them to a group chat (2.0 beta)
PartialWhatsApp groups API: create groups, share invite links, send and receive group messages
Human handoff
BetaA person can reply in a conversation from the 2.0 beta Inbox
SupportedFree shared Inbox; Apple Messages and WhatsApp guides cover AI to human handoff
Audit logs
BetaAPI logs and traces in the 2.0 beta dashboard
SupportedConfiguration and security changes, not message activity
Message history API
SupportedList and get messages per chat
SupportedList endpoints for SMS, WhatsApp, email and Apple Messages conversations
Plans and compliance
Free plan
SupportedUp to 10 users on shared lines
SupportedFree email tier of 1,000 emails a month and free shared Inbox; SMS and WhatsApp are paid
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
Not supportedBilled per message or segment from a prepaid balance
Uptime SLA
SupportedContractual SLA on the Enterprise plan
Not supportedNo public SLA; terms exclude downtime liability unless an Order Form says otherwise
Isolated infrastructure
SupportedEach line runs in an isolated, dedicated environment
PartialDedicated email IPs and IP pools only
SOC 2 Type II
SupportedStated on photon.codes
PartialTrust Center lists a SOC 2 Type I report (Sept 30, 2026); site pages say Type 2
GDPR
SupportedPrivacy policy covers GDPR rights and SCC transfers
SupportedDPA and subprocessor list published

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

Bird

Pay as you go from a shared prepaid balance, priced per message or segment by channel and destination, with optional monthly plans that fund the balance.

Pricing model: per message, prepaid balance

Source

Which should you choose?

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

Choose Bird if you need CRM integrations.

Frequently asked questions

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