One pattern.
One vault.
Every secure pattern opens a separate private space. Opening one vault does not reveal the others.
Available now
NullVault for Android
Encrypted private vault for Android
Protect private photos, videos, files, and notes in separate encrypted Android vaults. Each pattern opens a different private space, with no visible master vault list.
- AES-256-GCM encrypted storage
- No NullVault account required
- Private captures stay out of the public gallery
Android phones · Android 10 and later
One pattern.
Encrypted before storage.
File contents, filenames, and metadata are encrypted before being saved to private app storage.
Local by default.
Local vault use requires no NullVault account. Content leaves private app storage only when you explicitly export it or create a backup.
How it works
Private spaces without a master list.
NullVault uses the pattern itself to address a vault. Lock the app, draw another established pattern, and a different private space opens.
- 1
Draw a pattern
Your established pattern opens its matching encrypted vault.
- 2
Protect private content
Import photos, videos, documents, and notes—or capture directly inside the active vault.
- 3
Lock and switch privately
Leave the app to close the session, or lock it and use a different pattern to open another vault.
Android feature set
Photos, videos, files, and notes—protected together.
Explore each currently available capability and its platform-specific behavior.
Available now
Pattern-addressed hidden vaults
Pattern-addressed creation, hidden-vault access, and neutral vault switching are available on Android.
Read feature details Available nowDecoy vaults
Decoy vaults and separate-pattern access are available on Android.
Read feature details Available nowEncrypted photos, videos, files and notes
Encrypted photos, videos, documents, other files, private notes, and protected previews are available on Android.
Read feature details Available nowAlbums, search, and organization
Collections, active-vault search, filters, layouts, and sorting are available on Android.
Read feature details Available nowPrivate camera and import
Direct photo and video capture plus Android picker imports are available on Android.
Read feature details Available nowControlled export
Single and multi-select content export are available on Android.
Read feature details Available nowRecovery phrase
A device recovery phrase supports same-device forgotten-pattern recovery on Android.
Read feature details Available nowDuress vault
Destructive duress protection is available on Android.
Read feature details Available nowPanic wipe
Panic wipe is available on Android.
Read feature details Available nowAutomatic lock
Automatic locking is available on Android.
Read feature details Available nowOffline without a NullVault account
Core Android vault use is local, account-free, and works offline.
Read feature details Available nowEncrypted backup
Portable encrypted backup and phrase-based restore are available on Android.
Read feature detailsSecurity, explained
Strong claims need clear boundaries.
NullVault combines AES-256-GCM authenticated encryption, memory-hard Argon2id key derivation, and device-protected Android Keystore material. Recovery, portable backup, duress, and panic wipe each have different consequences.
NullVault for Android
Your private content.
Your pattern.
Compatible with Android 10 and later. Local use requires no NullVault account.
Help & details
Android questions
Is NullVault available for Android?
Yes. NullVault is available for compatible Android phones running Android 10 and later.
Does Android vault use work offline without an account?
Yes. You can create and unlock vaults and import and view local content offline without a NullVault account. App updates, Google Play purchases and restoration, and optional online storage destinations require a connection.
How does Android protect device keys?
NullVault combines AES-256-GCM authenticated encryption, memory-hard Argon2id key derivation, and device-protected Android Keystore key material. Hardware availability and behavior depend on the phone.
Can I back up an Android vault?
Yes. NullVault can create a portable encrypted backup in a compatible Android storage location. Restore requires its separate backup recovery phrase.
Does Android support destructive emergency protection?
Android includes a configurable duress vault and panic wipe. These actions invalidate future local access but do not erase exported backups, system snapshots, or previously written physical storage cells.