Miss Blue supports 47 of the 77 features compared here, and Project Blue supports 42.
and 4 more in the table below.
| Feature | ||
|---|---|---|
| iMessage messaging | ||
| iMessage | ||
| Group chats | ||
| Group management | ||
| Group name and photo | ||
| Mentions | Not listed | Not listed |
| Tapbacks | ||
| Threaded replies | Not listed | |
| Typing indicators | ||
| Read receipts | Not listed | |
| Edit and unsend | Not listed | |
| Message effects | ||
| Animated text effects | Not listed | |
| Stickers | Not listed | Not listed |
| Formatted text | Not listed | Not listed |
| Attachments | ||
| Live Photos | Not listed | Not listed |
| Rich link previews | Not listed | Not listed |
| Voice messages | ||
| Contact cards | Not listed | |
| Polls | Not listed | Not listed |
| Chat backgrounds | Not listed | Not listed |
| Location sharing | Not listed | |
| iMessage apps | Not listed | Not listed |
| Live app cards | Not listed | Not listed |
| Sender name and photo | ||
| FaceTime calls | ||
| Delivery status | ||
| iMessage availability check | ||
| Focus and Notify Anyway | Not listed | Not listed |
| Numbers and delivery | ||
| Managed lines | ||
| Dedicated numbers | ||
| Shared numbers | ||
| Bring your own number | ||
| Line pooling | ||
| SMS fallback | ||
| RCS fallback | Not listedHomepage describes fallback from iMessage to WhatsApp to SMS. RCS fallback is not described. | |
| Outbound-first messaging | ||
| Calls on the iMessage number | ||
| Other channels | ||
| SMS | ||
| RCS | ||
Not supportedNot offered | ||
| Telegram | Not supported | Not supportedNot offered |
| Slack | Not supportedNot offered as a channel; the Slack page is an integration guide. | |
Not supportedNot offered as a channel; iMessage can be sent to Apple ID email addresses. | ||
| Phone calls | ||
| Apple Messages for Business | Not supportedNot offered | Not supportedNot offered |
| Unified channel API | ||
| Developer tools | ||
| REST API | ||
| TypeScript SDK | Not listedThe API is plain HTTP; no SDK package was found. | |
| Python SDK | Not listed | Not listed |
| Other SDKs | Not listed | Not listed |
| CLI | Not listed | |
| Webhooks | ||
| Signed webhooks | Not listedWebhook docs do not mention signatures. | |
| MCP server | ||
| Open source | ||
| Self-hosting | Not listed | Not listedHosted service on Project Blue lines. Self-hosting is not mentioned. |
| Local testing | Not listedTrial accounts send real messages to verified numbers; docs say they are not a simulator. | |
| Custom channel providers | Not listed | Not listed |
| Event replay | ||
| OpenTelemetry | Not listed | Not listed |
| No-code integrations | ||
| CRM integrations | ||
| Built for AI agents | ||
| Agent framework | Not listed | |
| Agent framework integrations | Not listed | |
| Streaming replies | Not listed | Not listed |
| Agent group chats | Not listed | Not listed |
| Human handoff | ||
| Audit logs | Not listed | Not listed |
| Message history API | ||
| Plans and compliance | ||
| Free plan | ||
| Public pricing | ||
| No per-message fees | ||
| Uptime SLA | Not listedSite cites a 99.9% uptime record and a public status page. No contractual SLA found. | |
| Isolated infrastructure | ||
| SOC 2 Type II | Not listed | Not listed |
| 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.
A free sandbox for testing, then $99 per dedicated number per month at the launch price (normally $198), with the usual $479 setup fee waived until October 31; FaceTime Audio ($250), phone calls ($75) or both ($300) are optional add-ons per line, and Enterprise is custom.
Pricing model: flat per line
SourceFlat per-line pricing: $166 a month per line billed annually or $199 a month per line on a 12-month plan, with a free trial on a shared line.
Pricing model: flat per line
SourceChoose Miss Blue if you need threaded replies, read receipts, edit and unsend and location sharing.
Choose Project Blue if you need message effects, contact cards, WhatsApp and Slack.