Project Blue supports 42 of the 77 features compared here, and rustpush supports 39.
and 11 more in the table below.
and 8 more in the table below.
| Feature | ||
|---|---|---|
| iMessage messaging | ||
| iMessage | ||
| Group chats | ||
| Group management | ||
| Group name and photo | ||
| Mentions | 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 | |
| Formatted text | Not listed | |
| Attachments | ||
| Live Photos | Not listed | |
| Rich link previews | Not listed | |
| Voice messages | ||
| Contact cards | Not listed | |
| Polls | Not listed | Not listed |
| Chat backgrounds | Not listed | |
| Location sharing | Not listed | |
| iMessage apps | Not listed | |
| Live app cards | Not listed | |
| Sender name and photo | ||
| FaceTime calls | ||
| Delivery status | ||
| iMessage availability check | ||
| Focus and Notify Anyway | Not listed | |
| Numbers and delivery | ||
| Managed lines | Not supportedA library; you register your own Apple ID and device identity | |
| Dedicated numbers | Not supportedNot offered | |
| Shared numbers | Not supported | |
| Bring your own number | ||
| Line pooling | Not listed | |
| SMS fallback | Not listed | |
| RCS fallback | Not listedHomepage describes fallback from iMessage to WhatsApp to SMS. RCS fallback is not described. | Not listed |
| Outbound-first messaging | ||
| Calls on the iMessage number | ||
| Other channels | ||
| SMS | ||
| RCS | Not listed | |
Not supportedNot offered | ||
| Telegram | Not supportedNot offered | Not supported |
| Slack | Not supported | |
Not supported | ||
| Phone calls | Not supportedNot offered; FaceTime only | |
| Apple Messages for Business | Not supportedNot offered | Not supportedNot offered |
| Unified channel API | ||
| Developer tools | ||
| REST API | Not supportedRust library only; no HTTP API | |
| TypeScript SDK | Not listedRust crate only | |
| Python SDK | Not listed | Not listed |
| Other SDKs | Not listed | |
| CLI | Not listed | Not listed |
| Webhooks | Not supportedLibrary only; your code receives messages directly, no webhooks | |
| Signed webhooks | Not listedWebhook docs do not mention signatures. | Not supportedNo webhooks |
| MCP server | Not listed | |
| Open source | ||
| Self-hosting | 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. | Not listed |
| Custom channel providers | Not listed | Not listed |
| Event replay | Not listed | |
| OpenTelemetry | Not listed | Not listed |
| No-code integrations | Not listed | |
| CRM integrations | Not listed | |
| Built for AI agents | ||
| Agent framework | Not listed | Not listed |
| Agent framework integrations | Not listed | Not listed |
| Streaming replies | Not listed | Not listed |
| Agent group chats | Not listed | Not listed |
| Human handoff | Not listed | |
| Audit logs | Not listed | Not listed |
| Message history API | ||
| Plans and compliance | ||
| Free plan | ||
| Public pricing | Not listedNo prices or commercial license terms published | |
| 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 listedSelf-hosted; compliance is up to the operator |
| 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.
Flat 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
Sourcerustpush is free source under SSPL v1; you supply Apple hardware identifiers or an always-on iPhone relay, and anyone offering it as a service must publish their service's source.
Pricing model: free self-hosted library
SourceChoose Project Blue if you need contact cards, managed lines, dedicated numbers and shared numbers.
Choose rustpush if you need mentions, threaded replies, read receipts and edit and unsend.