PERFECT DISGUISE · ABSOLUTE SECURITY
Looks like a calculator.
Is your private vault.
A fully working calculator on the outside. Underneath is an AES-256 encrypted vault for photos, videos, notes, passwords, bank cards and private contacts — out of reach of anyone holding your phone.
- 100% encrypted on your device
- No account, no server
- No backdoor
Tap to enter your passcode
Type 1998 then press =
We hide nothing from you
Lockboxy is a private vault app disguised as a calculator. Open it and you get exactly that: a calculator — addition, subtraction, even scientific mode — that computes correctly, like any other.
Only when you type your own secret passcode, followed by a trigger key (say, 1998 then =), does the screen slide open into your private vault — every disguise has its own trigger surface, detailed below. To anyone else who picks up your phone — even if they tap around — it stays a perfectly ordinary calculator.
Deliberately upfront
We say this plainly from the start, including on the App Store: Lockboxy is a private vault app with a calculator disguise — not a secret we're keeping from you.
8 AREAS INSIDE THE VAULT
Everything private, in one vault
Each area is encrypted independently — photos, files, notes, passwords, even metadata like file names.
Photos & Videos
Hide directly from the camera, your library, or the Share Sheet, or turn on Auto-Hide Screenshots to sweep new ones in automatically — camera captures never pass through the Photos app.
Files
Lock any file type: PDFs, contracts, ID scans, archives — import via the file picker or Share Sheet.
Wallet
Bank cards, passwords, WiFi, a live 2FA code generator, crypto seed phrases — every field encrypted individually, plus breach checks for saved passwords.
Private Notes
Encrypted journal and notes, autosaved, searchable by month and year.
Private Browser
Browse the web inside the vault — history and cookies never leave the encrypted area.
Audio
Record voice memos straight into the vault, import existing files, or share them in from any app.
Private Contacts
Sensitive contacts kept entirely separate from your phone's address book.
Web Shortcuts
Quick access to WhatsApp Web, Messenger, Telegram, and more — right inside the vault.
These are web shortcuts, not clones of the original apps.
THE ENCRYPTION PIPELINE
From your passcode to a key nobody else holds
Every unlock goes through these exact 5 steps — no shortcuts.
- 1
Your secret passcode
Set by you — any length, and it never leaves your device.
- 2
Argon2id
Your passcode is hashed with Argon2id and a unique salt, resistant to brute-force attacks.
- 3
Master Key
A 256-bit key that exists only in memory, and is never written to disk.
- 4
Wrapping the data key (DEK)
The Master Key unwraps a random DEK — changing your passcode only re-wraps the DEK, never re-encrypts your files.
- 5
AES-256-GCM
Every file is encrypted in chunks, with a fresh nonce for every write.
More layers of defense
Decoy passcode
A second passcode opens an entirely different, empty vault — for when you're forced to unlock your phone.
Increasing lockout delay
Each wrong passcode in a row makes the next attempt wait longer — from 1 second up to 2 minutes — a silent defense against anyone trying to guess their way in.
Intruder selfie
After 4 wrong attempts, the front camera silently captures a photo and timestamp — never uploaded anywhere.
Fake crash
After 7 wrong attempts, the app pretends to crash to stop anyone from guessing further.
Face ID / Touch ID
A safe shortcut — it just re-feeds your real passcode, never a side door around it.
Screenshot blocking
The vault automatically hides its content from screenshots and the app switcher.
No backdoor
Forgetting your passcode means permanent data loss — there's no “security question” to bypass it. Premium includes a one-time Recovery Key as your only sanctioned fallback.
THE DISGUISE
Choose the shape your vault wears
Not just the in-app look — the home screen icon and app name change too. Each disguise unlocks a different way.
Calculator
Default — a fully working calculator, does real math.
Unlock: Type your code on the keypad, then press =.
Notes
A real, working notes app you can create and edit.
Unlock: Type your code in the search bar (or a note's title/body), then press search.
Weather
A real weather app with live forecasts for your location.
Unlock: Type your code in the city search bar, then press search.
Utility
Flashlight, ruler, compass, unit and currency converters.
Unlock: Open Unit Converter or Currency, type your code, then press done.
Currently available on iOS only.
PRICING
Free to start. Pay once to keep it forever.
No hidden renewal traps — every term is shown clearly on the purchase screen itself.
Free plan: hide up to 30 photos/videos and 10 files — enough to try the entire security core.
See Premium in detail →FAQ
The questions we want you to ask first
I forgot my passcode. Can it be recovered?
No — and that's intentional. The encryption key is derived from your passcode; we never store it and never receive it. There's no reset. Premium users can generate a Recovery Key in advance as a fallback.
Does Lockboxy actually do math?
Yes, it computes correctly like any real calculator — including scientific mode. That's exactly why the disguise works.
Do Notes, Weather, and Utility unlock the same way as Calculator — digits then "="?
No — each disguise has its own trigger. Notes: type your code in the search bar (or a note's title/body), then press search. Weather: type it in the city search bar, then press search. Utility: type it into Unit Converter or Currency, then press done. Only Calculator uses the keypad + "=".
Can I share photos, videos, files, or audio into the vault from other apps?
Yes — select item(s) in Photos, Files, Voice Memos, or any other app, tap Share, then choose whichever disguise you've set Lockboxy to. They're saved encrypted and waiting in Media, Files, or Audio the next time you open the vault — no need to open Lockboxy first. iOS only for now; Android support is planned.
Are the web shortcuts real clones of WhatsApp or Messenger?
No. They're shortcuts that open the web version of those services inside the vault's private browser — not clones of the original apps.
Is any of my data sent to a server?
No. Lockboxy has no account and no server. Everything stays on your device, encrypted.
Does it need an internet connection?
No. The vault itself works fully offline. A connection is only needed for the private browser or web shortcuts.
Does Premium come with ads?
No — Premium removes ads entirely. The free plan shows occasional ads: an interstitial when you lock the vault, and an optional rewarded ad to unlock extra free storage slots.
Start protecting what's actually yours
Get Lockboxy today — setting your first passcode takes under a minute.
Launching soon on iOS and Android.