QuietBox keeps your private photos and videos encrypted on your phone, with no internet access and no account. Because of that, most answers come down to two things only you hold: your PIN and your Recovery Code.

Your PIN and Recovery Code

I forgot my PIN

On the PIN screen, tap “Forgot your PIN?” and enter your Recovery Code. Then choose a new PIN. Your photos stay as they are.

I lost my Recovery Code

While you can still open your vault, make a new code: Settings → Backup and recovery → New Recovery Code. The old code then stops working. Backups made before that still open only with the old code, so make a new backup afterwards.

If you forget both your PIN and your Recovery Code, nobody can open the vault — not even us. There is no master key and no reset.

How do I check that my Recovery Code still works?

The App reminds you about every 90 days on the vault’s home screen. You can type the code there; nothing changes, it only checks that the code still opens your vault.

New Phone, Reinstalling & Backups

Moving to a new phone, or reinstalling the App
  1. On the old phone, make a backup: Settings → Backup and recovery → Backup.
  2. On the new phone, install QuietBox and tap “I already have a vault”.
  3. Choose the backup, and enter your Recovery Code.

After reinstalling on the same phone, choose your existing vault folder instead; it is still there.

Where should I keep my backup?

Anywhere you like: another folder, an SD card, a pen drive, or a cloud drive. The backup stays encrypted and opens only with your Recovery Code. Keep that code on paper, never next to the backup.

Big backups written to a folder are split into 2 GB parts, so they also fit on memory cards and pen drives formatted as FAT32.

Can I back up to Google Drive? Do I need to sign in?

Yes, and no sign-in is needed in QuietBox. Choose “Back up to one file”; Android’s own “save to” screen opens, and you pick Google Drive there. The Drive app uploads the file with the Google account already on your phone. QuietBox itself never goes online and never sees your Google account. The file stays encrypted in Drive.

To restore, tap “I already have a vault” → “Restore from a backup instead” and pick the file from Drive in the same way.

Why is there no automatic backup?

An automatic cloud backup needs internet access and an account. QuietBox has no internet access at all, on purpose: nothing can leave your phone unless you move it yourself. Make a backup from time to time; the App can remind you (Settings → Backup reminder), and only when something was added since your last backup.

Can I move or clean up the vault folder?

Keep the vault folder where it is, and don’t let cleaner apps delete it: it looks empty, but your encrypted photos are inside. If it was moved or renamed, the App asks you to find it again (“Find the vault folder”). Keep a backup in another place, just in case.

Disguise & Decoy

How do I open QuietBox when it is disguised?
  • Calculator: type your PIN and press =. For fingerprint, hold = for 2 seconds.
  • Clock: hold the time for 2 seconds, then enter your PIN on the pad that appears.
  • Notes: type your PIN in the search box and press search on the keyboard. For fingerprint, hold the title for 2 seconds.

Your PIN is still needed every time; the disguise only changes how the App looks. Change it in Settings → App icon. The icon changes only after you have practised opening the vault the new way once.

The disguise doesn’t open my vault

After many wrong tries, the vault stays shut for a while, and the disguise shows nothing unusual — even the right PIN just acts like a normal number or search. Wait a little, then try again.

The icon disappeared after I changed the disguise

Changing the icon can take a few seconds. On some phones the icon leaves the home screen; add it again from the app list. Android’s own settings may still show the App’s real name.

How convincing is the decoy vault?

A decoy PIN opens a second, separate vault. Someone who knows the App well could guess from the size of the vault folder that there is more than the decoy shows. Put some ordinary photos in the decoy so it looks used. The decoy works only on the phone where you set it up, and the Recovery Code brings back only your main vault.

Everyday Questions

I hid my photos, but they are still in Google Photos

QuietBox can remove the originals from your phone’s gallery, but not from a cloud service. If the photos were backed up to Google Photos, delete them there too, and empty its trash. Photos you shared into QuietBox from another app also stay in that app.

Fingerprint unlock stopped working

When a new fingerprint is added to the phone, Android stops the App from accepting fingerprints, for safety. Open the vault with your PIN, then turn “Unlock with fingerprint” on again in Settings.

Why is the App blank in recent apps, and why can’t I take screenshots?

This is on purpose. While your vault is open, Android is told to keep it out of recent apps, screenshots and screen recordings. For the most privacy, keep Settings → Lock the vault on Immediately.

Why did a green dot appear at the top?

Android 12 and later show a green dot whenever an app uses the camera. You see it while taking a photo in the vault, and when Intruder photo takes a picture after wrong PINs. No app can hide it.

How do I get my photos back into the gallery?

Select them and tap Unhide, or take everything out at once with Settings → Help → Unhide everything. They are saved to your gallery in a folder called Restored.

Thinking about a refund?

Take your photos out first: Settings → Help → Unhide everything. Google Play uninstalls the App as part of a refund, and without the App your vault can’t be opened. Refunds are handled by Google Play; see the Terms of Use.

How do I contact support?

In the App, tap Settings → Contact support. Your email app opens with a message to help@appskuber.com, and the App version, Android version and phone model already filled in — nothing from your vault. Or write to us directly; see the Contact page. Never send us your PIN or Recovery Code.

What QuietBox Can’t Protect Against

We would rather you know the limits than trust the App for something it cannot do: