Thrive - Caffeine Tracker

THRIVE is a caffeine & sleep tracker for people 13+, published by BrainCare Foundation (a nonprofit). There is no account, login, server, purchase, ad, analytics SDK or social feature. Every screen is reachable from the 5 bottom tabs; there are no hidden screens, feature flags, remote config, or behavior that changes by date, region or device. A fresh install is empty. The first launch shows a 3-step welcome (welcome + language, optional name and bedtime, "You're all set") that can be skipped with "Skip" (top right) or "Look around first" on the last step; nothing is unlocked by it. The app follows the phone's language (English, 简体中文, 繁體中文, Español, 日本語, 한국어) and can be switched in Settings → Language. To see all features in ~1 minute: 1. Log tab → pick where the drink is from (e.g. Starbucks), then tap the size you had (e.g. Caffè Latte → Grande). "Undo" appears for a few seconds. You…