Photon vs Vonage

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

Feature comparison

Feature	Photon	Vonage
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	SupportedVirtual numbers in 80+ countries, rented via dashboard, CLI or Numbers API
Shared numbers	SupportedFree and Pro route each user through a managed shared pool	PartialShared Sandbox senders for WhatsApp, Viber, Messenger and Instagram, for trying the API only
Bring your own number	SupportedYour own Apple ID when self-hosting on a Mac, and your own number for WhatsApp Business	PartialCan SMS-enable an existing US toll-free number; other numbers are ported in
Line pooling	SupportedBusiness: auto-scale adds lines and a routing endpoint balances users	BetaNumber Pools API for outbound SMS is in beta for qualifying customers
SMS fallback	SupportedOn every plan per pricing; carrier rules apply to fallback traffic	Not supportedNo iMessage support; RCS and WhatsApp can fail over 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 outside the 24-hour window
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	SupportedSMS and MMS through the Messages API
RCS	PartialSent on the iMessage line when the recipient cannot get iMessage	SupportedRCS Business Messaging in the UK, Germany and 10+ other countries
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	SupportedTransactional email as a Messages API channel, inbound and outbound
Phone calls	SupportedSIP calls on iMessage lines; the 2.0 beta adds calls on SMS numbers	SupportedVoice API for PSTN, SIP and in-app calls
Apple Messages for Business	BetaListed as available in the 2.0 beta	Not supportedNot offered
Unified channel API	SupportedOne Spectrum SDK across channels, and one REST model in the 2.0 beta	SupportedMessages API covers SMS, MMS, RCS, WhatsApp, Messenger, Viber and email
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	SupportedNode.js SDK written in TypeScript, Apache-2.0
Python SDK	Betaphotonhq-api on PyPI, for the 2.0 beta API	SupportedApache-2.0
Other SDKs	SupportedGo client for Advanced iMessage; Rust and Go clients for the 2.0 API	SupportedJava, Kotlin, PHP, Ruby, .NET; iOS, Android and web client SDKs
CLI	Supported@photon-ai/cli manages projects, lines, users and billing	SupportedVonage CLI for apps, numbers and JWTs
Webhooks	Supported	SupportedInbound message and message status webhooks
Signed webhooks	SupportedHMAC-SHA256, plus Standard Webhooks signatures	SupportedHS256 JWT signed with the signature secret, plus SHA-256 payload hash
MCP server	SupportedHosted MCP server, plus an MCP server for the docs	SupportedDocs MCP server plus tooling MCP that sends SMS, WhatsApp, RCS and voice
Open source	SupportedMIT: spectrum-ts, imessage-kit and most SDKs	Not supportedClosed platform; SDKs, CLI and MCP server are Apache-2.0
Self-hosting	SupportedRun the open-source core on your own Mac and number, no Spectrum Cloud	Not listed
Local testing	SupportedTerminal chat UI provider, no phone or number needed	Not listedDocs suggest a Prism mock API server; no virtual phone or simulator found
Custom channel providers	SupporteddefinePlatform plugs any interface into the same Spectrum API	SupportedConversation API custom events add your own channels (e.g. WeChat) to a conversation
Event replay	SupportedCatch up on events after a disconnect from a durable sequence	PartialOnly automatic retries on 429 or 5xx, backing off to every 15 minutes, discarded after 24 hours
OpenTelemetry	SupportedOpt-in messaging traces in spectrum-ts, and traces in the 2.0 beta dashboard	Not listedNo OpenTelemetry export found in the API or Cloud Runtime docs
No-code integrations	Supportedn8n community nodes and a Dify plugin	SupportedMicrosoft Power Automate connector and Node-RED; blog tutorials cover n8n and Make
CRM integrations	Not listed	SupportedVonage Conversations for Salesforce: SMS, MMS and WhatsApp in the CRM
Built for AI agents
Agent framework	SupportedSpectrum is a multi-channel agent framework with streaming replies	SupportedAI Studio, a low-code builder for virtual agents on voice and messaging
Agent framework integrations	SupportedVercel Chat SDK, Mastra, LangChain, Convex and others	SupportedPipecat: Vonage Audio Serializer and Video Transport, for voice and video agents
Streaming replies	SupportedAI output streams into one iMessage bubble, edited in place	PartialVoice only: AI speech streamed into calls over WebSockets (e.g. Pipecat); messages can be revoked, not edited
Agent group chats	BetaAgents find other agents and add them to a group chat (2.0 beta)	PartialGroup MMS in the Messages API and multi-member Conversation API chats; no agent-to-agent docs
Human handoff	BetaA person can reply in a conversation from the 2.0 beta Inbox	SupportedAI Studio Live Agent Routing node hands chats to human agents with history
Audit logs	BetaAPI logs and traces in the 2.0 beta dashboard	SupportedAudit API for account events, a $550 per month add-on
Message history API	SupportedList and get messages per chat	PartialNo list endpoint in Messages API; Reports API returns past message records, priced per tier
Plans and compliance
Free plan	SupportedUp to 10 users on shared lines	SupportedFree Sandbox (100 messages a month, chat apps only) plus free credit at signup
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, plus a platform fee on top of carrier fees
Uptime SLA	SupportedContractual SLA on the Enterprise plan	Supported99.99% platform availability SLA on the paid Premium and Enterprise support plans
Isolated infrastructure	SupportedEach line runs in an isolated, dedicated environment	PartialOnly dedicated email sending IPs (Advanced plan); no single-tenant messaging found
SOC 2 Type II	SupportedStated on photon.codes	SupportedCovers the Core API (SMS and Voice); AI Studio pending
GDPR	SupportedPrivacy policy covers GDPR rights and SCC transfers	SupportedData Processing Addendum for Communications APIs with GDPR Article 28 terms

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

Pricing

Which should you choose?

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

Choose Vonage if you need CRM integrations.

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