Blackbox
Connor Glass Productivity
Zero-knowledge password and secrets vault, encrypted on your device
- Downloads
- 9+
- on Google Play
- Price
- Free
- No in-app purchases
- Updated
- Sep 25
- 2026 · v1.0.0
Screenshots
About Blackbox
Blackbox is a zero-knowledge password and secrets manager by Glass House Technologies. Your master password never leaves your device, and the sync server only ever stores ciphertext.
- Logins, API keys, SSH and encryption keys, server and database credentials
- Secure notes, payment cards, Wi-Fi, and identity profiles
- AES-256-GCM encryption with Argon2id key derivation, done on your device
- Recovery key you control; there is no password recovery by design
- Password generator, strength meter, and auto-lock
- Optional sync with your GHT-hosted Blackbox server
Create a vault with your email and a master password to get started. Blackbox is made by Glass House Technologies.
- Logins, API keys, SSH and encryption keys, server and database credentials
- Secure notes, payment cards, Wi-Fi, and identity profiles
- AES-256-GCM encryption with Argon2id key derivation, done on your device
- Recovery key you control; there is no password recovery by design
- Password generator, strength meter, and auto-lock
- Optional sync with your GHT-hosted Blackbox server
Create a vault with your email and a master password to get started. Blackbox is made by Glass House Technologies.
What’s new
Version 1.0.0 · Updated September 25, 2026
First release of Blackbox for Android: your zero-knowledge vault for passwords, keys, notes, cards, and identities, encrypted on your device.