Thunder & Lightning vs Baduk Timer

Thunder & Lightning has (barely) one practical purpose: to measure your distance to a sound source. It works for thunder and lightning, fireworks, rocket launches, or other loud events visible from a (hopefully safe) distance away. Just press the Lightning button when you see the event, and Thunder when you hear it. Modern technology does the rest. To perform this trivial task even more accurately, you can enter the temperature of your surroundings to more precisely calculate the speed of sound. You can also choose between U.S./Imperial and metric measurements depending on your personal unit preferences. Should its intended purpose be insufficiently useful, this application can also be used as a reasonably precise (if redundant) stopwatch, a speed-of-sound calculator, a Fahrenheit/Celsius converter, or as an odometer if you happen to be traveling at precisely the speed of sound. Note: Use of application while operating supersonic aircraft is not recommended or approved.

A complete game clock app for Go (Baduk/Weiqi) matches. ◆ Byoyomi Mode - 10s~60s overtime, 1~5 periods - Presets from 30s+10sx1 to 2h+60sx5 - Korean-style voice countdown ◆ Fischer Mode (Increment) - Time added per move (5s~60s) - Presets from 1min+15s to 3h+60s ◆ Voice Announcements - Byoyomi countdown in Korean - Time checkpoint alerts (10s, 30s, 1min, 5min...) - Volume slider control ◆ Scoring (Kye-ga) - Request scoring after 50+ moves - Manual scoring calculator (komi 0~9.5) - Auto scoring via camera photo · Just take a photo of the board · AI automatically counts territory and calculates the score · Works without internet connection (on-device processing) ◆ Game Features - Handicap game start (white first) - Pass confirmation (auto-end on double pass) - Resign confirmation modal - +10 second time adjustment - Move counter display ◆ Convenience - Screen wake lock during games - Haptic feedback on touch - Symmetric layout for face-to-face play No personal data collected. Board photos are processed on-device only.