psst. it's not just a dice app.
A randomizer with a secret behind the wheel.
ROLL looks and works like a genuine dice, coin, and wheel randomizer app: roll a D6 or D20, flip a coin, spin a wheel, ask the Magic 8-Ball. That's not a cover story layered on top of a vault. It's a real, useful randomizer in its own right.
Behind it, a specific sequence of taps on the wheel unlocks an encrypted vault, with no visible sign, anywhere in the app, that a vault exists at all until the correct code is entered. Photos and videos, sure, but also documents, PDFs, archives. Any file type, kept exactly as private.
Two vaults. Two codes.
the one you hand over, and the one you don'tA full decoy vault, not a fake screen.
On Android, ROLL has a second, completely independent vault with its own code and its own encryption key. It's a real vault you can put real (boring) things in.
If someone pressures you to open it, give up the decoy code. They get a vault that looks and behaves like a vault, and your real content stays hidden. Flip between them here: notice they look the same from the inside. That's the point.
(the decoy also works on the wheel up top: 2 · 4 · 6 · 8)
Not obscurity. Actual encryption.
hiding the door is step one. locking it is step two.an illustration, chunk by chunk. real ciphertext is just noise, there's nothing to see.
AES-256-GCM, on your device.
Every file in the vault is encrypted at rest with AES-256-GCM. It's chunked and hardware-accelerated, so even multi-gigabyte videos import, export, and play back without stalling.
- cipher
- AES-256-GCM
- where
- On-device. Encryption at rest, not a hidden folder.
- how
- Chunked and hardware-accelerated, so big videos don't stall.
- what
- Photos, videos, documents, PDFs, archives. Any file type.
The rest of the toolkit
the less flashy stuff that matters just as muchLocal backup & restore
Export your vault to a single password-encrypted file whenever you like. No cloud sync built in, no account required. Restoring just needs the file and the password you set.
Take it anywhere, your way
A backup is just a file. Put it in your own Google Drive, iCloud, or Dropbox, or email it to yourself, wherever you already trust. ROLL doesn't sync to any cloud itself, but nothing stops you from doing it on your own terms.
PC / Mac import
Drag and drop files in from your computer over your own local Wi-Fi. No cable, no third-party app, nothing that touches the internet.
Duplicate finder
A manually-triggered scan finds exact and likely-duplicate photos so you can clean up safely. Included at no extra cost.
other vault apps often charge separately for exactly this.Screenshot & relock protection
The vault hides itself the instant the app leaves the foreground and forces re-entry of your code on return. Screenshots of vault content are blocked outright.
the demo up top does the relock part too: open the vault, switch tabs, come back.One price, forever
pay once. keep it.No subscriptions, no ads, ever. Other vault apps charge monthly, charge even more upfront, or lock essentials like duplicate detection behind expensive add-ons.
No recovery, on purpose
please read this one before you start.There is no recovery seed or one-time key.
The real vault supports an optional hint, and on Android, the decoy vault's code can be reset from inside the real vault's settings. But that's it.
A recovery mechanism would itself be a weak point for an app whose entire premise is that nothing about it should ever give the vault away. Forgetting your code means losing access to that vault's contents, with one exception.
A backup you've already made still opens fine, because it's protected by its own separate password, not your vault code. Back it up regularly; it's just as encrypted as the vault itself.
"I forgot my code. Now what?"
pick the one that's true. no wrong answers, just honest ones.Who made this
an independent app, not a data business.
ROLL is an independent app developed by Jan Aguja, independent developer in the Philippines. For questions, feedback, or support, reach out at [email protected].