Comparison
Why catchotp
How catchotp compares to other email-testing approaches. We don't name competitors — that's not our style — but you'll recognize the categories.
| Feature | Disposable inbox sites browser-only, free | Enterprise email-testing platforms $500/mo+ | DIY (your own SMTP) self-hosted | catchotp |
|---|---|---|---|---|
| Programmable API | No | Yes | Yes | Yes |
| Real-time wait-for-OTP | No | Polling only | No | Yes |
| OTP auto-extracted | No | Partial | No | Yes |
| AI-agent friendly (MCP, structured JSON) | No | No | No | Yes |
| Free tier | Ad-supported | No | N/A | Yes |
| Pro tier price | N/A | $500–2,500/mo | DevOps cost | $29/mo |
| Setup time | 30s (no API) | 2–4 weeks | 2–3 days | <5 min |
| GDPR / DPA | Often missing | Yes | Self-managed | Yes |
| Bring-your-own-domain | No | Enterprise only | Yes | Roadmap (Team) |
vs disposable-inbox sites
They're free, but they're ad-supported, browser-only, and have no API. Great for one-off email signups; impossible to integrate into a CI pipeline.
vs enterprise email-testing platforms
They're powerful but priced for the Fortune 500. catchotp's Pro tier is $29/mo — roughly 1/30th the price — with the same OTP-extraction and waiter primitives.
vs DIY (your own SMTP)
You can run Postfix yourself. You'll spend a week on configuration, ongoing time on RBL listings, deliverability fights, and S3 archive plumbing. We do all that so your team can ship features instead.
Try the free tier.
No credit card. No demo call. Just an API key and a quickstart.