**Calculator Vault — fully functional calculator with a private layer** > App-Vault’s Calculator Launcher presents as a fully functional iPhone calculator with an opt-in long-press to enter your encrypted vault. Designed for shared family devices, customs checkpoints, and lent phones. Source: https://appvau.lt/calculator-vault/ FILE 04 / CALCULATOR LAUNCHER # A working calculator. Quietly, also a vault. The Calculator Launcher is an optional alternate icon that turns App-Vault into a fully functional calculator on your home screen. It does arithmetic. It calculates tips. It also, on a long-press of the equals key followed by your pattern, reveals the encrypted vault. WHY IT EXISTS ## A phone you sometimes hand to a stranger. A border agent asks to flip through your photo roll. A friend grabs your phone to take a group photo and casually swipes left. Your kid plays with your unlocked iPad on a long flight. In any of those moments, you do not want to explain why you have a private vault app on your home screen. The Calculator Launcher is the answer. With it enabled, App-Vault appears on your home screen as a clean, branded calculator. Open it and it calculates. Hand it to your kid and they will compute. Show it to an inspector and they will see a calculator. Only you know that a long-press on the equals key, followed by your 5×5 pattern, opens an entirely separate encrypted compartment. DEMO / CALCULATOR.APP LAUNCHER 8 ÷ 2 = 789÷456×123−0.=+ LONG-PRESS [ = ] · ENTER PATTERN HOW APPLE SEES IT ## It is, first, a calculator that actually calculates. App-Vault declares the Calculator Launcher openly in its App Store description. Apple’s App Review Guidelines (4.3 and 5.2.5) allow alternate icons and ask only that the app does what its primary metadata says. The launcher does arithmetic the way a calculator does — every operation, every memory key, every history function — and the vault entry is a clearly documented privacy feature, not a hidden trick. We do not market the launcher as a way to hide things from a spouse or skirt parental controls. The use cases we ship in our description are the ones Apple recognizes: shared family devices, border and customs travel, journalism, legal practice, healthcare, and shoulder-surfing protection in public. RELATED DOSSIERS ## Keep reading. 6 ENTRIES - [LINK / 01 · CORE Decoy Vault The second-pattern feature that pairs with the calculator launcher.](https://appvau.lt/decoy-vault/) - [LINK / 02 · CORE Photo & File Vault What the calculator long-press actually unlocks.](https://appvau.lt/photo-vault/) - [LINK / 03 · KEY Pattern Lock The 5×5 grid that opens after the long-press equals key.](https://appvau.lt/pattern-lock/) - [LINK / 04 · TRUST Threat model Customs, shared devices, lent phones — what the launcher defends against.](https://appvau.lt/security/) - [LINK / 05 · COMPARE App-Vault vs Vaultaire The closest direct competitor — and the calculator-launcher gap.](https://appvau.lt/compare/app-vault-vs-vaultaire/) - [LINK / 06 · PUBLISHER About App-Vault Why we shipped the launcher and how Apple approved it.](https://appvau.lt/about/) GET STARTED ## Seal the vault. Free to download. The free tier holds one file. Premium removes the limit — Weekly from $3.99 or Yearly from $29.99 with a 7-day free trial. [Open App-Vault on iPhone](https://appvau.lt/download/) --- HTML version: https://appvau.lt/calculator-vault/ Structured data for this site: https://appvau.lt/api/v1/openapi.json · https://appvau.lt/llms.txt Free to quote and reuse with a link back to the source URL above (CC BY 4.0).