BlueBubbles vs Comms by Osis
Compare BlueBubbles and Comms by Osis side by side: iMessage features, channels, developer tools, pricing and compliance, checked on each provider's own site.
BlueBubbles
Free, open-source iMessage bridge you host on a Mac
- Starting price
- Free
- Free plan
- Free and open source (Apache-2.0)
Comms by Osis
iMessage, RCS, SMS and WhatsApp API with hosted agents
- Starting price
- $50/month (shared line); $200/month per dedicated number
- Free plan
- Free: shared platform line, 100 messages a day, no card
BlueBubbles supports 45 of the 77 features compared here, and Comms by Osis supports 43.
Where BlueBubbles is ahead
- Mentions
- Message effects
- Stickers
- Formatted text
- Live Photos
- Rich link previews
- Voice messages
- iMessage apps
and 5 more in the table below.
Where Comms by Osis is ahead
- Contact cards
- Managed lines
- Dedicated numbers
- Shared numbers
- SMS fallback
- RCS fallback
- Phone calls
and 3 more in the table below.
Feature comparison
| Feature | ||
|---|---|---|
| iMessage messaging | ||
| iMessage | ||
| Group chats | ||
| Group management | ||
| Group name and photo | ||
| Mentions | Not listed | |
| Tapbacks | ||
| Threaded replies | ||
| Typing indicators | ||
| Read receipts | ||
| Edit and unsend | ||
| Message effects | Not listed | |
| Animated text effects | Not listed | Not listed |
| Stickers | Not listed | |
| Formatted text | Not listed | |
| Attachments | ||
| Live Photos | Not listed | |
| Rich link previews | Not listed | |
| Voice messages | Not listedVoice notes are documented for WhatsApp only. | |
| Contact cards | Not listed | |
| Polls | ||
| Chat backgrounds | ||
| Location sharing | ||
| iMessage apps | 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 | |
| Numbers and delivery | ||
| Managed lines | ||
| Dedicated numbers | Not supportedNot offered; uses your own Apple ID | |
| Shared numbers | Not supported | |
| Bring your own number | ||
| Line pooling | Not listed | Not listed |
| SMS fallback | Not listedNot documented; FAQ says SMS is unsupported, the fit quiz says forwarded texts work | |
| RCS fallback | Not listed | |
| Outbound-first messaging | ||
| Calls on the iMessage number | ||
| Other channels | ||
| SMS | ||
| RCS | ||
Not supportedNot offered | ||
| Telegram | Not supported | Not supportedNot offered |
| Slack | Not supported | Not supported |
Not supported | ||
| Phone calls | Not supportedNot offered; FaceTime only | |
| Apple Messages for Business | Not supportedNot offered | |
| Unified channel API | ||
| Developer tools | ||
| REST API | ||
| TypeScript SDK | Not listedOnly a runnable Node.js example is published. | |
| Python SDK | Not listed | |
| Other SDKs | Not listed | |
| CLI | Not listed | Not listed |
| Webhooks | ||
| Signed webhooks | ||
| MCP server | ||
| Open source | Not listed | |
| Self-hosting | Not listed | |
| Local testing | Not listed | Not listed |
| Custom channel providers | Not listed | Not listed |
| Event replay | ||
| OpenTelemetry | Not listed | Not listed |
| No-code integrations | ||
| CRM integrations | Not listed | Not listed |
| Built for AI agents | ||
| Agent framework | Not listed | |
| Agent framework integrations | Not listedOnly community projects are listed, such as a ChatGPT agent and Clawdbot | 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 | ||
| No per-message fees | ||
| Uptime SLA | Not listed | |
| Isolated infrastructure | Not listed | |
| SOC 2 Type II | Not listedSelf-hosted; compliance is up to whoever runs the Mac | Not listed |
| GDPR | Not listed | Not listedThe privacy policy mentions GDPR rights; no DPA was found. |
Checked on each provider's own site and docs on 2026-10-25. “Not listed” means the provider does not mention it.
Pricing
BlueBubbles
The software is free and open source; an optional BlueBubbles Pro subscription for the upcoming 2.x server costs $3/month, $30/year or $55 once.
Pricing model: free self-hosted software, optional Pro subscription
SourceComms by Osis
Free on a shared line with 100 messages a day, Plus at $50 a month on a shared line, Dedicated at $200 a month per number with $0 setup, and custom Enterprise; AI usage is billed separately.
Pricing model: flat monthly per plan or dedicated line; AI usage and call minutes extra
SourceWhich should you choose?
Choose BlueBubbles if you need mentions, message effects, stickers and formatted text.
Choose Comms by Osis if you need contact cards, managed lines, dedicated numbers and shared numbers.
Frequently asked questions
BlueBubbles supports 45 of the 77 features compared here, and Comms by Osis supports 43. BlueBubbles adds mentions, message effects, stickers, formatted text and Live Photos. Comms by Osis adds contact cards, managed lines, dedicated numbers, shared numbers and SMS fallback.
BlueBubbles: The software is free and open source; an optional BlueBubbles Pro subscription for the upcoming 2.x server costs $3/month, $30/year or $55 once. Comms by Osis: Free on a shared line with 100 messages a day, Plus at $50 a month on a shared line, Dedicated at $200 a month per number with $0 setup, and custom Enterprise; AI usage is billed separately.
Comms by Osis does not list mentions on its site or in its docs.
Comms by Osis does not list message effects on its site or in its docs.
Comms by Osis does not list stickers on its site or in its docs.