Tap Lottery (Finger Picker) is an interactive and fair decision-making tool built with Flutter. It replaces traditional methods like "Rock-Paper-Scissors" by using the smartphone's multi-touch capabilities to randomly select one person from a group in seconds.
- Touch: Every participant places one finger on the screen simultaneously.
- Track: Dynamic circular markers appear under each finger.
- Countdown: A built-in timer builds suspense.
- Result: One marker glows red, identifying the chosen person!
- Multi-Touch Support: Accurately tracks multiple fingers at once (limited only by device hardware).
- Immersive Themes: Choose from playful backgrounds like spaceship interiors or sky clouds to set the mood.
- Fair Randomization: A neutral algorithm ensures every finger has an equal chance of being selected.
- Instant Decision: Perfect for choosing who goes first in a game, pays the bill, or handles a chore.
- Global Support: Fully localized in 50+ languages.
- Framework: Flutter
- Language: Dart
- Logic: Advanced multi-touch event handling and real-time pointer tracking to manage concurrent inputs and animations.
Note: This repository contains the core logic and source code. Assets (images, sound effects, and localization files) are excluded to protect intellectual property.
This app is part of a global initiative to release 50+ high-quality mini-apps. I aim to provide tools that turn mundane decisions into engaging, high-performance digital experiences.
© 2026 Akira Ohmachi / ao-system, Inc. - Distributed under the MIT License.