Photon vs Unipile

Compare Photon and Unipile 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)

Unipile

Unified API for users' own WhatsApp, LinkedIn and email
Starting price
49 EUR/month for up to 10 linked accounts ($55)
Free plan
7-day free trial, no credit card

Photon supports 75 of the 77 features compared here, and Unipile supports 24.

Where Unipile is ahead

Nothing on this list that Photon lacks.

Feature comparison

FeaturePhotonUnipile
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
Not supportedDoes not provide numbers; end users connect accounts they already own.
Shared numbers
SupportedFree and Pro route each user through a managed shared pool
Not supported
Bring your own number
SupportedYour own Apple ID when self-hosting on a Mac, and your own number for WhatsApp Business
SupportedEnd users link WhatsApp, Telegram, LinkedIn, Instagram and email accounts they already own.
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
SupportedStart new chats with one or more attendees from a linked account.
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
Not supportedAnnounced for Android phones only and not released.
RCS
PartialSent on the iMessage line when the recipient cannot get iMessage
Not supportedAnnounced with SMS for Android phones only and not released.
WhatsApp
SupportedWhatsApp Business, one-to-one, on the Business plan
SupportedUser-linked WhatsApp accounts, reached through reverse engineering rather than Meta's official API.
Telegram
Supported
SupportedUser accounts linked by QR code, on Telegram's official API.
Slack
Supported@spectrum-ts/slack provider on npm and GitHub
Not supportedNot offered
Email
BetaYour own domain with DKIM, SPF and inbound MX in the 2.0 beta
SupportedUsers' own Gmail, Outlook and IMAP mailboxes, with calendars on the same linked account.
Phone calls
SupportedSIP calls on iMessage lines; the 2.0 beta adds calls on SMS numbers
Not supportedNot offered
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
SupportedOne chat and message schema for LinkedIn, WhatsApp, Instagram and Telegram; email has its own endpoints.
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
Supportedunipile-node-sdk for v1; unipile-node for the v2 API.
Python SDK
Betaphotonhq-api on PyPI, for the 2.0 beta API
BetaOfficial SDK for the v2 beta API; installed from GitHub, not on PyPI yet.
Other SDKs
SupportedGo client for Advanced iMessage; Rust and Go clients for the 2.0 API
Not listedThe PHP SDK repository is archived; no other languages found.
CLI
Supported@photon-ai/cli manages projects, lines, users and billing
Not listed
Webhooks
Supported
SupportedNew messages, emails, email tracking, account status and new relations.
Signed webhooks
SupportedHMAC-SHA256, plus Standard Webhooks signatures
BetaHMAC-SHA256 unipile-signature header in the v2 beta API; v1 only supports a custom secret header.
MCP server
SupportedHosted MCP server, plus an MCP server for the docs
SupportedHosted at developer.unipile.com/mcp: API reference tools plus live requests with a scoped key.
Open source
SupportedMIT: spectrum-ts, imessage-kit and most SDKs
Not supportedClosed platform; the Node SDK, MCP repo and n8n node are MIT-licensed.
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
Betav2 beta dashboard test accounts trigger mock webhook events without a real account.
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
Betav2 beta can replay stored webhook events by API; v1 retries a webhook five times.
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
Supportedn8n guide and official n8n node; Make and Zapier guides in the v2 docs.
CRM integrations
Not listed
Not listed
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
PartialNo streaming; an edit-message API (WhatsApp, LinkedIn Classic) can update a sent reply in place.
Agent group chats
BetaAgents find other agents and add them to a group chat (2.0 beta)
PartialLinked WhatsApp and Telegram accounts can message groups they belong to; nothing agent-specific.
Human handoff
BetaA person can reply in a conversation from the 2.0 beta Inbox
Not listed
Audit logs
BetaAPI logs and traces in the 2.0 beta dashboard
SupportedDashboard audit trail of user actions, plus access logs.
Message history API
SupportedList and get messages per chat
SupportedList chats and messages, and sync a conversation from its beginning.
Plans and compliance
Free plan
SupportedUp to 10 users on shared lines
Partial7-day free trial, no credit card.
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
SupportedBilled per linked account; unlimited API calls, no per-message fee.
Uptime SLA
SupportedContractual SLA on the Enterprise plan
Not listedSecurity page shows 99.9% uptime over 24 months; no contractual SLA found.
Isolated infrastructure
SupportedEach line runs in an isolated, dedicated environment
Not listed
SOC 2 Type II
SupportedStated on photon.codes
SupportedSOC 2 Type II; report on request.
GDPR
SupportedPrivacy policy covers GDPR rights and SCC transfers
SupportedData hosted only in France; processor under GDPR; DPA on request.

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

Unipile

Billed per linked account per month with unlimited API calls: 49 EUR for up to 10 accounts, then 5.00 EUR per account, falling to 3.00 EUR at volume.

Pricing model: per linked account

Source

Which should you choose?

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

Choose Unipile if its pricing fits better: it does not support anything here that Photon lacks.

Frequently asked questions

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