Janken (Rock Paper Scissors)
Modern offline Rock Paper Scissors with private Pass & Play, Bot AI and RPSLS.
Janken is a beautifully designed, modern, privacy-first Rock-Paper-Scissors and RPSLS game for Android, built natively with Jetpack Compose.
Whether you are settling a debate with a friend or sharpening your mind against adaptive AI, Janken delivers an exquisite, fluid, and delightful experience.
✨ Key Features
• 🤖 vs Computer (Smart Bot AI): Play against 3 distinct difficulties (Easy, Medium, Hard). The Hard AI analyzes your patterns with Markov chains to counter your tendencies!
• 👥 Pass & Play (Local 2-Player): Play with a friend on a single phone with true privacy! Player 1 chooses a move which is instantly locked and shielded before handing the phone over to Player 2.
• ⚡ Quick Decision Mode: Solve everyday dilemmas instantly — "Who gets the last slice of pizza?", "Who pays for coffee?", "Who takes out the trash?"
• 🦎 Rock-Paper-Scissors-Lizard-Spock (RPSLS): Expand your battles with the classic 5-move variant! Includes an interactive visual rules cheat sheet.
• 📊 In-Depth Statistics & Match Logs: Track your win rates, winning streaks, move distribution breakdown, and review detailed match histories.
• 🎨 Material 3 Design & Micro-Animations: Fluid animations, dynamic color theming, dark/light modes, confetti celebrations, and tactile haptics.
• 🔊 Synthesized Audio Effects: Enjoy custom offline synthesized sound chimes and cues with complete volume controls.
🔒 100% Privacy-First & Offline
• Zero Permissions: Janken requires no internet permissions (INTERNET permission is completely omitted).
• No Ads & No Tracking: Zero analytics, telemetry, or external SDKs.
• Open Source: Free software licensed under GPL-3.0.
Whether you are settling a debate with a friend or sharpening your mind against adaptive AI, Janken delivers an exquisite, fluid, and delightful experience.
✨ Key Features
• 🤖 vs Computer (Smart Bot AI): Play against 3 distinct difficulties (Easy, Medium, Hard). The Hard AI analyzes your patterns with Markov chains to counter your tendencies!
• 👥 Pass & Play (Local 2-Player): Play with a friend on a single phone with true privacy! Player 1 chooses a move which is instantly locked and shielded before handing the phone over to Player 2.
• ⚡ Quick Decision Mode: Solve everyday dilemmas instantly — "Who gets the last slice of pizza?", "Who pays for coffee?", "Who takes out the trash?"
• 🦎 Rock-Paper-Scissors-Lizard-Spock (RPSLS): Expand your battles with the classic 5-move variant! Includes an interactive visual rules cheat sheet.
• 📊 In-Depth Statistics & Match Logs: Track your win rates, winning streaks, move distribution breakdown, and review detailed match histories.
• 🎨 Material 3 Design & Micro-Animations: Fluid animations, dynamic color theming, dark/light modes, confetti celebrations, and tactile haptics.
• 🔊 Synthesized Audio Effects: Enjoy custom offline synthesized sound chimes and cues with complete volume controls.
🔒 100% Privacy-First & Offline
• Zero Permissions: Janken requires no internet permissions (INTERNET permission is completely omitted).
• No Ads & No Tracking: Zero analytics, telemetry, or external SDKs.
• Open Source: Free software licensed under GPL-3.0.
- Author: Attenomy
- License: GNU General Public License v3.0 only
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Versions
Although APK downloads are available below to give you the choice, you should be aware that by installing that way you will not receive update notifications and it's a less secure way to download. We recommend that you install the F-Droid client and use that.
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arm64-v8aarmeabi-v7ax86x86_64This version requires Android 8.0 or newer.
It is built and signed by F-Droid, and guaranteed to correspond to this source tarball.
Download APK 1.6 MiB PGP Signature | Build Log