Useful and safe
Looks safe and will definitely an app that I will use. Thank you for developing it.
Free
About
This app provides a secure vault for your sensitive notes and private information, using CAPTCHA verification to ensure only humans can access it. All data is stored locally and encrypted, with options for self-destruction after failed attempts. It offers a distraction-free interface and works entirely offline.
✓Human-only CAPTCHA authentication
✓On-device encrypted local storage
✓Self-destruct after failed attempts
✓No user accounts or cloud backups
✓Minimalist note-taking interface
✓Customizable CAPTCHA modes
✓Fully offline and ad-free operation
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What's New in Captcha Stash
2.0
July 16, 2026
Password & 2FA notes — logins + live TOTP codes with countdown ring QR code scanner for 2FA setup Decoy vault — duress trigger opens a separate empty vault Encrypted backup & restore (.captchastash files) Search, tags & auto-expiry Eleven CAPTCHA types — the seven new ones (Emoji Sequence, Counting, Odd One Out, Word Math, Analogy, Clock Reading, Memory) with live preview Multi-CAPTCHA & biometrics Inactivity auto-lock Screen-capture protection Safer clipboard (local-only, 60s auto-clear) Stronger security foundations (the hardening round — crash-safe Keychain, stronger backup KDF, lockout backoff, auto-wipe) Reliability & polish (redesigned Settings, About screen, faster saving, bug fixes)
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FAQ
What is Captcha Stash?
Captcha Stash is a vault application designed to store sensitive notes and private information. It uses CAPTCHA verification to ensure that only humans, not bots or AI, can access your data. All information is stored locally and encrypted on your device.
How does Captcha Stash ensure security?
Security is maintained through human-only CAPTCHA challenges, on-device encrypted storage, and an optional self-destruct feature after multiple failed login attempts. The app also avoids cloud backups, user accounts, and analytics to maximize privacy.
Can I access Captcha Stash offline?
Yes, Captcha Stash is fully offline and does not require an internet connection to use or access your data. This enhances security by preventing any data transmission over networks.
Does Captcha Stash have ads?
No, Captcha Stash is completely ad-free. The application is designed to provide a distraction-free and secure user experience without advertisements.
What happens if I forget my CAPTCHA or fail too many times in Captcha Stash?
If you configure the self-destruct feature and exceed the allowed number of failed access attempts, all notes within Captcha Stash will be wiped for security. There is no recovery option, similar to a physical vault.
What types of CAPTCHA challenges does Captcha Stash offer?
Captcha Stash offers a variety of CAPTCHA modes, including visual, math, word, and pattern-based challenges. You can choose the method that best suits your preferences for verifying access.
Is my data backed up by Captcha Stash?
No, Captcha Stash does not offer cloud backups or any form of data recovery. All data is stored exclusively on your device, and if the app is deleted or the device is reset, your notes will be lost.
What devices is Captcha Stash available on?
Captcha Stash is available for iPhone, iPad, and iPod devices. It is designed to work across Apple's mobile operating systems.
