MessageBlue vs Vonage
Compare MessageBlue and Vonage side by side: iMessage features, channels, developer tools, pricing and compliance, checked on each provider's own site.
MessageBlue
iMessage API for agents, with bring-your-own-number
- Starting price
- $100/month per line
- Free plan
- $0 with your own number and Mac, all features, limited seats
Vonage
Messages API for SMS, RCS, WhatsApp, Viber and email
- Starting price
- $0.00860 per US SMS on a long virtual number, plus carrier fees
- Free plan
- Free credit at signup with no card, and a free Messages API Sandbox capped at 100 messages a month
MessageBlue supports 38 of the 77 features compared here, and Vonage supports 36.
Where MessageBlue is ahead
and 7 more in the table below.
Where Vonage is ahead
and 5 more in the table below.
Feature comparison
| Feature | ||
|---|---|---|
| iMessage messaging | ||
| iMessage | Not supportedNo iMessage support | |
| Group chats | Not supported | |
| Group management | Not supported | |
| Group name and photo | Not listed | Not supported |
| Mentions | Not listed | Not supported |
| Tapbacks | Not supported | |
| Threaded replies | Not listed | Not supported |
| Typing indicators | Not supported | |
| Read receipts | Not supported | |
| Edit and unsend | Not listed | Not supported |
| Message effects | Not listed | Not supported |
| Animated text effects | Not listed | Not supported |
| Stickers | Not listed | Not supported |
| Formatted text | Not listed | Not supported |
| Attachments | Not supported | |
| Live Photos | Not listed | Not supported |
| Rich link previews | Not listed | Not supported |
| Voice messages | Not supported | |
| Contact cards | Not listed | Not supported |
| Polls | Not listed | Not supported |
| Chat backgrounds | Not listed | Not supported |
| Location sharing | Not listed | Not supported |
| iMessage apps | Not listed | Not supported |
| Live app cards | Not listed | Not supported |
| Sender name and photo | Not listed | Not supported |
| FaceTime calls | Not listedInbox video call button is marked coming soon; voice calls need the team to enable. | Not supported |
| Delivery status | Not supported | |
| iMessage availability check | Not supported | |
| Focus and Notify Anyway | Not listed | Not supported |
| Numbers and delivery | ||
| Managed lines | Not supportedNo iMessage support | |
| Dedicated numbers | ||
| Shared numbers | Not listed | |
| Bring your own number | ||
| Line pooling | ||
| SMS fallback | Not supportedNo iMessage support; RCS and WhatsApp can fail over to SMS | |
| RCS fallback | Not listedMarketing pages say SMS or RCS fallback; docs only describe SMS. | Not supportedNo iMessage support |
| Outbound-first messaging | ||
| Calls on the iMessage number | Not listedInbox voice call button says to contact the team; number used is not stated. | Not supportedNo iMessage support |
| Other channels | ||
| SMS | ||
| RCS | Not listedMentioned only as a fallback on marketing pages. | |
Not supportedNot offered | ||
| Telegram | Not supported | Not supportedNot offered |
| Slack | Not supported | Not supported |
Not supported | ||
| Phone calls | Not listedInbox voice call button says to contact the team; call type and number not stated. | |
| Apple Messages for Business | Not supportedNot offered | Not supportedNot offered |
| Unified channel API | ||
| Developer tools | ||
| REST API | ||
| TypeScript SDK | ||
| Python SDK | ||
| Other SDKs | ||
| CLI | Not listedThe API page mentions a CLI, but none is documented. | |
| Webhooks | ||
| Signed webhooks | ||
| MCP server | ||
| Open source | Not listed | |
| Self-hosting | Not listed | |
| Local testing | Not listedDocs suggest a Prism mock API server; no virtual phone or simulator found | |
| Custom channel providers | Not listed | |
| Event replay | ||
| OpenTelemetry | Not listed | Not listedNo OpenTelemetry export found in the API or Cloud Runtime docs |
| No-code integrations | ||
| CRM integrations | ||
| Built for AI agents | ||
| Agent framework | ||
| Agent framework integrations | Not listedSite says it works with LangChain and the Vercel AI SDK via webhooks; no official integration. | |
| Streaming replies | Not listed | |
| Agent group chats | Not listed | |
| Human handoff | ||
| Audit logs | ||
| Message history API | ||
| Plans and compliance | ||
| Free plan | ||
| Public pricing | ||
| No per-message fees | ||
| Uptime SLA | ||
| Isolated infrastructure | ||
| SOC 2 Type II | ||
| GDPR | Not listed |
Checked on each provider's own site and docs on 2026-10-25. “Not listed” means the provider does not mention it.
Pricing
MessageBlue
Free when you bring your own number on your own Mac; a dedicated line is $100 a month on Startups & SMB, and Business and Enterprise are contact sales.
Pricing model: flat per line
SourceVonage
Pay as you go per message for each channel, with a Vonage platform fee on top of carrier or Meta fees.
Pricing model: per message
SourceWhich should you choose?
Choose MessageBlue if you need iMessage, group chats, group management and tapbacks.
Choose Vonage if you need shared numbers, RCS, WhatsApp and email.
Frequently asked questions
MessageBlue supports 38 of the 77 features compared here, and Vonage supports 36. MessageBlue adds iMessage, group chats, group management, tapbacks and typing indicators. Vonage adds shared numbers, RCS, WhatsApp, email and phone calls.
MessageBlue: Free when you bring your own number on your own Mac; a dedicated line is $100 a month on Startups & SMB, and Business and Enterprise are contact sales. Vonage: Pay as you go per message for each channel, with a Vonage platform fee on top of carrier or Meta fees.
Vonage does not support iMessage.
Vonage does not support group chats.
Vonage does not support group management.