誰かの充電

Overview

A small web app that gazes at the current smartphone battery charge level of someone whose name you don't know. Without rankings or conversations, you simply observe the battery percentage that someone in the world has entered themselves.

Main Features

• Random Display: Displays one random post from the past 24 hours
• Reactions: Emoji reactions based on battery level (worried for low battery, applause for 100%)
• Easy Posting: Post an integer from 0-100 using a slider or numeric input
• Anonymity: No poster names or personal information are stored; only auto-generated nicknames are kept
• History Management: Stores up to 12 recently viewed posts locally on your device
• Sharing Feature: Post content can be shared or copied (poster information is not included)
• Accessibility: Supports dark/light display, responsive design, keyboard operation, and reduced motion settings
• PWA Support: Can be installed and displays guidance even when offline

Privacy-Focused

• Does not use location information, device fingerprinting, or Battery Status API
• Only 4 fields are stored in Firestore: battery level, post time, expiration, and anonymous name
• Posts are automatically deleted after 24 hours
• Measurement data contains no personal information; only mode (demo/production) and operation name are sent

For People Like This

• Want to feel connected with strangers around the world
• Prefer simple apps without unnecessary features
• Users who value privacy