VaultPony

VaultPony creates and opens encrypted containers on Android. A vault is a single
encrypted file that holds a private filesystem, and only your password opens it.
The containers are compatible with VeraCrypt, so you can open the same vaults on
the desktop and back.

There is no account, no cloud, and no network access. Your vaults are just files,
kept wherever you choose.

Features:

* Create and open VeraCrypt-compatible containers, with a choice of cipher, hash,
and filesystem (FAT or exFAT).
* Hidden volumes: conceal a second vault inside the first. Two passwords, and the
outer one gives no sign the hidden one exists. The outer volume can be
write-protected so normal use will not overwrite the hidden data.
* Header backup and recovery, in-place password change, and keyfiles.
* Biometric unlock, auto-lock when the app leaves the foreground, a hidden-screen
mode that blocks screenshots, and a no-trace mode that remembers nothing.
* Localized in English, German, Spanish, French, Russian, and Brazilian
Portuguese, with live in-app switching.

VaultPony is free and open source, built on a shared Rust core you can inspect.
It is not affiliated with or endorsed by IDRIX; VeraCrypt is a registered
trademark of IDRIX.