Wearable sleep scores never told me if I actually slept well. Slumber reads Apple Health and lets you post your night for friends to see, with a Compare tab for side-by-side stats (asleep, deep, REM, bedtime, wake events). Baseline from people you know, not a population average. Works with Oura, Whoop, Apple Watch, Garmin. iOS, free. Best with a friend on it.
Mobile-first poker session manager to track players, buy-ins, and final amounts. This is meant to sit along side the host of a home poker game to keep track of everything relevant for the home game. No app, no subscription required, and urls store state and can be shared with other people.