Mailwell vs MailOnce
A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.
Mailwell compared with MailOnce
| Detail | 
Mailwell | 
MailOnce |
|---|
| What it does | A calm, fast mail app for Mac
| Temporary email for verification messages and OTP codes in a browser-scoped, auto-expiring inbox
|
|---|
| Stage | Startup
| Not given
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| Founded | 2026
| Not given
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| Based in | US
| Not given
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| Pricing model | Free trial
| Free
|
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| Pricing | Monthly: $5 USD; Yearly: $49 USD; Founder Lifetime (first 50): $59 USD (valid until December 31, 2026); then $129 USD
| Not given
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| Key features | - Unified inbox for multiple accounts
- Multiple reading pane options (Slide In, Side by Side, Full Window)
- Inbox tabs for every account (Primary, Social, Promos, Updates)
- Keyboard shortcuts and command palette
- Saved replies and snippets
- Snooze and quick actions
- Rules for sorting mail
- Send and Archive in one step
- Undo Send and Send Later
- Optional AI with Apple Intelligence or custom API key
| - 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
|
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| What makes it different | - Mail stays on your Mac with no Mailwell servers in between
- No tracking or analytics, private by design
- Support for JMAP protocol with native integration
- Works with any IMAP or JMAP account, not just popular providers
- Lifetime license option for early adopters
| - 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
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| Community votes | 0 | 0 |
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| DR (Domain Rating by Ahrefs) | 3 ▼ −1 (down) since last check | 2 ▼ −1 (down) since last check |
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| Trust Flow (Majestic) | 5 | 4 |
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| Citation Flow (Majestic) | 18 | 22 |
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| Referring domains (Majestic) | 12 | 10 |
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4 details filled in for both companies.
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