MailOnce vs Tempo Checker
A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.
MailOnce compared with Tempo Checker
| Detail | 
MailOnce | 
Tempo Checker |
|---|
| What it does | Temporary email for verification messages and OTP codes in a browser-scoped, auto-expiring inbox
| Detect disposable emails before they wreck your signups
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| Stage | Not given
| Not given
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| Founded | Not given
| Not given
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| Based in | Not given
| Not given
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| Pricing model | Free
| Free trial
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| Pricing | Not given
| Starter $9.99/mo (750 calls/mo), Growth $14.99/mo (2,000 calls/mo), Scale $24.99/mo (6,000 calls/mo). Free 7-day trial available.
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| Key features | - Instant temporary email creation without signup
- Auto-expiring inbox after one hour, extendable to three hours
- Automatic OTP code detection and copying
- Verification link detection and opening
- Custom email address selection
- Secure device linking with QR code approval
- Real-time message delivery without manual refresh
- Multiple domain options for custom addresses
- Safe email change with confirmation step
| - DNS and MX validation
- AI scraper agent for new domain detection
- Sub-50ms response times
- Catches 1,200+ new domains per week
- Confidence scores and detailed reasons for verdicts
- Soft warning and hard block options
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| What makes it different | - No account creation required to use the service
- Privacy-focused design with clear lifecycle boundaries
- Security claims tied to implemented controls, not empty promises
- Designed for practical utility rather than unnecessary features
| - Real-time updates catch new domains within hours, not months
- Simple one-request API integration
- 99.7% detection accuracy
- No email address storage, privacy-first architecture
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| Community votes | 0 | 0 |
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| DR (Domain Rating by Ahrefs) | 2 ▼ −1 (down) since last check | 2 ● no change since last check |
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| Trust Flow (Majestic) | 4 | 0 |
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| Citation Flow (Majestic) | 22 | 22 |
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| Referring domains (Majestic) | 10 | 19 |
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4 details filled in for both companies.
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