Texting Blue supports 20 of the 77 features compared here, and Vonage supports 36.
and 12 more in the table below.
| Feature | ||
|---|---|---|
| iMessage messaging | ||
| iMessage | Not supportedNo iMessage support | |
| Group chats | Not listedAPI only documents one-to-one sends | Not supported |
| Group management | Not listed | Not supported |
| Group name and photo | Not listed | Not supported |
| Mentions | Not listedGroup chats are not documented | Not supported |
| Tapbacks | Not listed | Not supported |
| Threaded replies | Not listed | Not supported |
| Typing indicators | Not listed | Not supported |
| Read receipts | Not listedMarketing mentions read receipts, but the API has no read status | Not supported |
| Edit and unsend | Not listed | Not supported |
| Message effects | Not listed | Not supported |
| Animated text effects | Not listed | Not supported |
| Stickers | Not supported | |
| Formatted text | Not listed | Not supported |
| Attachments | Not supported | |
| Live Photos | Not supported | |
| Rich link previews | Not listed | Not supported |
| Voice messages | Not supported | |
| Contact cards | Not supported | |
| Polls | Not supported | |
| Chat backgrounds | Not listed | Not supported |
| Location sharing | Not supported | |
| iMessage apps | Not supported | |
| Live app cards | Not supported | |
| Sender name and photo | Not listed | Not supported |
| FaceTime calls | Not supported | |
| Delivery status | Not supported | |
| iMessage availability check | Not listed | Not supported |
| Focus and Notify Anyway | Not listed | Not supported |
| Numbers and delivery | ||
| Managed lines | Not supportedNo iMessage support | |
| Dedicated numbers | ||
| Shared numbers | ||
| Bring your own number | ||
| Line pooling | Not listed | |
| SMS fallback | Not supportedNo iMessage support; RCS and WhatsApp can fail over to SMS | |
| RCS fallback | Not listed | Not supportedNo iMessage support |
| Outbound-first messaging | ||
| Calls on the iMessage number | Not supportedNo iMessage support | |
| Other channels | ||
| SMS | ||
| RCS | Not listed | |
| Telegram | Not supportedNot offered | Not supportedNot offered |
| Slack | Not supported | Not supported |
Not supported | ||
| Phone calls | ||
| Apple Messages for Business | Not supportedNot offered | Not supportedNot offered |
| Unified channel API | ||
| Developer tools | ||
| REST API | ||
| TypeScript SDK | Not listedSite mentions SDKs, but docs show only raw HTTP examples | |
| Python SDK | Not listed | |
| Other SDKs | Not listed | |
| CLI | Not listed | |
| Webhooks | ||
| Signed webhooks | ||
| MCP server | Not listed | |
| Open source | Not listedOnly the free website contact widget is described as open source | |
| Self-hosting | Not listedHosted dashboard and API; only the widget script can be self-hosted | Not listed |
| Local testing | Not listedtb_test_ sandbox keys are listed as coming soon | 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 | Not listed | |
| Agent framework integrations | Not listed | |
| 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 | Not listedAbout page mentions 'SOC 2 practices'; no report or certification stated | |
| GDPR |
Checked on each provider's own site and docs on 2026-10-25. “Not listed” means the provider does not mention it.
One plan on sale: Lite at $19 per number per month for text-only messaging up to 100 messages a day; Standard and Business are listed as coming soon.
Pricing model: flat per number, with a daily message cap
SourcePay as you go per message for each channel, with a Vonage platform fee on top of carrier or Meta fees.
Pricing model: per message
SourceChoose Texting Blue if you need iMessage, delivery status, SMS fallback and no per-message fees.
Choose Vonage if you need dedicated numbers, shared numbers, line pooling and RCS.