Side-by-side comparison
| Feature | Houdininbox | Guerrilla Mail |
|---|---|---|
| Inbox time limit | 10 min (extendable) | 1 hour |
| No signup required | ✓ | ✓ |
| Can send emails | ✗ | ✓ |
| Mobile optimised | ✓ PWA + one-thumb | ✗ Desktop-first |
| Installable (PWA) | ✓ | ✗ |
| Languages | 53 | English only |
| Data stored to disk | None — in-memory only | Unknown |
| Custom address | ✗ Random only | ✓ Choose your own |
| Scramble address | ✗ | ✓ |
| Ad load | Light | Heavy |
Where Houdininbox wins
- Privacy — in-memory only, nothing touches disk, 10-minute maximum exposure window
- Mobile — PWA installable, sticky copy bar, one-thumb operation
- 53 languages — full UI and FAQ translation for global users
- Speed — address appears on page load, no interaction required
- Cleaner UI — no heavy ad load interfering with the core task
Where Guerrilla Mail wins
- 1 hour inbox — useful if you need longer for a slow verification process
- Can send emails — Guerrilla Mail lets you compose and send, not just receive
- Custom address — you can choose your own inbox name
- Established since 2006 — long domain reputation, widely accepted
- Scramble address — forwards email to a real address while hiding it
Which should you use?
For most everyday use cases — sign-ups, verifications, Wi-Fi portals — Houdininbox is faster and cleaner. The 10-minute window is intentional: shorter exposure means better privacy.
Use Guerrilla Mail if you specifically need to send an email from a disposable address, need a longer inbox window, or want to choose your own address format.
Tip: If you need more than 10 minutes on Houdininbox, tap the Extend button to add another 10 minutes at any time. You can extend multiple times.