Calculator Locker is a calculator vault app that hides your photos, videos, files, notes and a private browser behind a working calculator. Type your code, press equals, and it opens. Everyone else just gets math.
No account. No cloud. Free.
Vault
Open
6 items · 84 MB
0:12Try it: type 2580 then =. Your keyboard works too.
The short version
Calculator Locker is a calculator lock app, the kind also called a calculator vault or a secret calculator. On your home screen it looks like an ordinary calculator, and it works like one. Type your passcode and press equals instead, and a private vault opens where you can hide photos, videos, files and notes, and browse without leaving a trace.
It's made for the phone that gets passed around: to a partner, a parent, a kid, a friend scrolling through holiday pictures. A normal app lock tells everyone there's something worth locking. A calculator doesn't.
Everything in the vault is encrypted on your phone with AES-256. There's no account and no cloud, so there's nothing to hack and nothing to leak. Calculator Locker is free on iPhone and Android.
What's inside
Everyone else just gets math. Behind the keypad there's a full private vault, and it only exists while it's open.
Import from your camera roll, then delete the originals in one tap. Albums, favourites and a full-screen viewer that never shows up in Recents.
PDFs, scans, screenshots, a list of passwords, a recording. Drop anything in and open it inside the vault without ever leaving.
A plain notes app that lives inside the vault. Door codes, lists, a journal, the message you're not ready to send. None of it reaches Apple Notes, Google Keep or a backup.
Tabs, bookmarks and downloads live inside the vault and go dark when you lock. No history on the phone, no autofill, nothing left behind.
Real screens
Every screen below is a screenshot of the app taken on an iPhone, not a drawing of one.
The calculator
Your code, typed like any other sum. Press = and the keypad turns over.
Photos
Imported at full quality, out of your camera roll, out of every backup.
Files
PDFs, scans, recordings. Encrypted the moment they land, opened without leaving.
Notes
Door codes, lists, the journal entry that never reaches Apple Notes.
Private browser
Tabs that close themselves the second you lock, with nothing written down.
Break-in alerts
Wrong codes get photographed. The disguise and the panic locks live here too.
How it works
Calculator Locker sets up in about a minute, and nobody watching would see anything but sums.
It shows up as a calculator, and it works as one. Long division, percentages, the lot.
Any four to eight digits. Add a second, decoy code that opens a vault you'd happily show someone.
The keypad flips over to your vault. Face ID or fingerprint can do this step for you.
Tap Lock, shake the phone, or just wait. Thirty seconds later it's a calculator again.
Security
No account to hack, no cloud to leak, and a second vault for when you're asked to unlock it.
Questions
The things people ask before they trust it. Yours isn't here? Email us and a person will answer.
A calculator locker app looks and works like a normal calculator, but typing a secret code opens a hidden vault. Calculator Locker uses it to hide photos, videos, files, notes and a private browser, so anyone who opens it just sees a calculator.
Install Calculator Locker, choose a four to eight digit code, then type it and press =. Inside the vault, tap Photos, import from your camera roll and delete the originals in one tap. The photos now live only inside the calculator.
Yes. Calculator Locker runs on iPhone with iOS 17 or later and on Android 8 or later, with the same vault, decoy code and break-in alerts on both.
When you set your code you can add a recovery question. Answer it and you can set a new code. Without it there is no way in, and there is no reset link, because there is no account. That's the point, so write the code down somewhere that isn't your phone.
It calculates. Decimals, percentages, long chains of operations, sign changes. The only difference is one sequence that opens something else, and only you know it.
On your phone, inside Calculator Locker's encrypted storage. There are no Calculator Locker servers and no account. Files only leave the device if you export or share them yourself.
No. Imported photos are copied into the vault, and you can delete the originals from your camera roll in one tap. They also won't appear in Recents, widgets or cloud photo backups.
It runs inside the vault with its own cookies and storage. When you lock, open tabs close and history is wiped. It does not hide your traffic from your network or internet provider, so use a VPN if that matters to you.
Yes. Calculator Locker is free to download and use, including the private browser and decoy codes. There's no subscription and no account to create.
Nothing to see here
Download Calculator Locker, set a code, and go back to looking like you're doing sums.
iOS 17 and Android 8 or later. No account needed.
