https://github.com/strangec137/calculator-vault
A stealth calculator that hides a secure offline password manager
https://github.com/strangec137/calculator-vault
android kotlin password-manager privacy
Last synced: about 1 month ago
JSON representation
A stealth calculator that hides a secure offline password manager
- Host: GitHub
- URL: https://github.com/strangec137/calculator-vault
- Owner: strangec137
- Created: 2026-05-30T12:35:02.000Z (about 1 month ago)
- Default Branch: main
- Last Pushed: 2026-05-31T08:11:26.000Z (about 1 month ago)
- Last Synced: 2026-05-31T08:13:45.278Z (about 1 month ago)
- Topics: android, kotlin, password-manager, privacy
- Language: Kotlin
- Homepage:
- Size: 128 KB
- Stars: 0
- Watchers: 0
- Forks: 0
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
Awesome Lists containing this project
README
# Calculator
A privacy-focused, dual-purpose Android app built with Kotlin & Jetpack Compose. On the surface it's a fully functional calculator. Hidden inside is a secure, offline password manager — guarded by the Strongest Man in the World. 🏴☠️
## 📥 Download
[⬇️ Download APK v1.1.0](https://github.com/strangec137/calculator-vault/releases/download/v1.1.0/Calculator.Vault.v1.1.0.apk)
> Works on Android 7.0+ (API 24)
## 🕵️ How It Works
Open the app — it looks and works like a normal calculator.
Type the secret PIN sequence (default: `0.000`) and Whitebeard himself unlocks the vault.
No button to press. No hint it exists.
## ✨ Features
- ✅ Fully functional calculator with proper order of operations
- 🔐 AES-128 encrypted password storage (offline only)
- 🏴☠️ Whitebeard unlock splash screen
- 🗂️ Category filters — Social, Work, Finance
- 🔍 Search across all saved credentials
- 📋 One-tap copy for username & password
- 🎨 3 themes — Default Dark, Pastel Green, Bakery Cozy
- 📤 Export vault as TXT or CSV
- 🔑 Customizable secret PIN with auto re-encryption
- ⚡ Quick-add templates — Email, Facebook, Instagram, GitHub, Banking and more
- 🔒 Auto-lock after 5 minutes inactivity
- 💪 Password strength indicator
- 📴 Zero network calls — your data never leaves your device
## 🛠️ Tech Stack
- Kotlin + Jetpack Compose
- Room Database (SQLite)
- ViewModel + StateFlow
- Navigation Compose
- AES/CBC/PKCS5 Encryption
## 🚀 Build from Source
## 📱 Screenshots
Coming soon
## 🚀 Getting Started
Clone the repo and open in Android Studio:
git clone https://github.com/strangec137/calculator-vault.git
Then build and run on any Android device (API 24+).
## ⚙️ How to Install APK
1. Download the APK from the link above
2. On your phone: Settings → Security → Enable "Install unknown apps"
3. Open the APK file and tap Install
4. If Google Play Protect warns you — tap **"More details"** → **"Install anyway"**
This is normal for apps outside the Play Store. The app makes zero internet connections so it's completely safe.
## build in Android Studio and .
## 🏴☠️ Made by
Akagami no Shanks — Bangladesh 🇧🇩
*"The One Piece is real... and so are your passwords"*
*— Edward Newgate, Strongest Man in the World*