Miss Blue vs Zernio
Compare Miss Blue and Zernio side by side: iMessage features, channels, developer tools, pricing and compliance, checked on each provider's own site.
Miss Blue
Dedicated iMessage line with API, team inbox and calling
- Starting price
- $99/month per number (launch price)
- Free plan
- Free sandbox; 30-minute live demo line
Zernio
One API for iMessage, SMS, WhatsApp, social DMs and calls
- Starting price
- $200/month per iMessage sender
- Free plan
- First 2 connected accounts free; free iMessage sandbox on a shared line
Miss Blue supports 47 of the 77 features compared here, and Zernio supports 57.
Where Miss Blue is ahead
Where Zernio is ahead
and 8 more in the table below.
Feature comparison
| Feature | ||
|---|---|---|
| iMessage messaging | ||
| iMessage | ||
| Group chats | ||
| Group management | ||
| Group name and photo | ||
| Mentions | Not listed | Not listed |
| Tapbacks | ||
| Threaded replies | ||
| Typing indicators | ||
| Read receipts | ||
| Edit and unsend | ||
| Message effects | ||
| Animated text effects | Not listed | |
| Stickers | Not listed | |
| Formatted text | Not listed | |
| Attachments | ||
| Live Photos | Not listed | Not listed |
| Rich link previews | Not listed | |
| Voice messages | ||
| Contact cards | Not listed | |
| Polls | Not listed | Not listed |
| Chat backgrounds | Not listed | Not listed |
| Location sharing | ||
| iMessage apps | Not listed | Not listed |
| Live app cards | Not listed | Not listed |
| Sender name and photo | ||
| FaceTime calls | Not listedInbound FaceTime attempts show in the thread as call-typed messages. No calling documented. | |
| Delivery status | ||
| iMessage availability check | Not listed | |
| Focus and Notify Anyway | Not listed | Not listed |
| Numbers and delivery | ||
| Managed lines | ||
| Dedicated numbers | ||
| Shared numbers | ||
| Bring your own number | ||
| Line pooling | Not listedOne sender per profile; docs suggest spreading contacts across senders by hand. | |
| SMS fallback | ||
| RCS fallback | ||
| Outbound-first messaging | ||
| Calls on the iMessage number | ||
| Other channels | ||
| SMS | ||
| RCS | ||
Not supportedNot offered | ||
| Telegram | Not supported | |
| 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. | Not supportedNot offered as a channel. iMessage senders can use an email handle. | |
| 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 | |
| Other SDKs | Not listed | |
| CLI | ||
| Webhooks | ||
| Signed webhooks | ||
| MCP server | ||
| Open source | ||
| Self-hosting | Not listed | Not supportedHosted cloud service only |
| Local testing | Not listedThe free sandbox still needs your own phone or Apple ID. | |
| 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 | ||
| Agent framework integrations | ||
| Streaming replies | Not listed | |
| Agent group chats | Not listed | Not listed |
| Human handoff | ||
| Audit logs | Not listed | |
| Message history API | ||
| Plans and compliance | ||
| Free plan | ||
| Public pricing | ||
| No per-message fees | ||
| Uptime SLA | Not listedSite states 99.97% uptime; no contractual SLA found. | |
| Isolated infrastructure | Not listed | |
| SOC 2 Type II | 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.
Pricing
Miss Blue
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
SourceZernio
An iMessage sender costs $200 a month plus Zernio's per-account fee, with a free sandbox; SMS, calls and outbound messages past 10,000 a month are metered.
Pricing model: flat per sender, plus per connected account and usage meters
SourceWhich should you choose?
Choose Miss Blue if you need FaceTime calls, iMessage availability check, line pooling and local testing.
Choose Zernio if you need message effects, stickers, formatted text and rich link previews.
Frequently asked questions
Miss Blue supports 47 of the 77 features compared here, and Zernio supports 57. Miss Blue adds FaceTime calls, iMessage availability check, line pooling, local testing and uptime SLA. Zernio adds message effects, stickers, formatted text, rich link previews and contact cards.
Miss Blue: 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. Zernio: An iMessage sender costs $200 a month plus Zernio's per-account fee, with a free sandbox; SMS, calls and outbound messages past 10,000 a month are metered.
Zernio does not list FaceTime calls on its site or in its docs.
Zernio does not list iMessage availability check on its site or in its docs.
Zernio does not list line pooling on its site or in its docs.