Heat Check

HeatCheck is a simple, clean temperature monitor for Android. No clutter — the main screen shows just four numbers: CPU temperature, GPU temperature, battery temperature and memory usage, color-coded green / yellow / red so you can tell at a glance whether your phone is running hot. ★ MAIN FEATURES • CPU, GPU and battery temperature, updated every second • Memory usage (% and used / total) • System thermal status — see when your phone starts throttling • °C / °F • Material You colors on Android 12+ ★ WATCH TEMPERATURES WHILE YOU USE OTHER APPS • Floating window: stays on top of games and other apps. Drag it anywhere, adjust opacity, font size and layout (row, 2×2 or column), hide labels, or lock it so taps pass through. • Picture-in-picture: shrink HeatCheck into a small resizable window. Choose 4:3, 16:9, 1:1 or portrait 3:4, and small / normal / large text. Can enter PiP automatically when you leave the app. • Home screen widget (4×1, resizable). Turn on "Live widget updates" to refresh it every 5 seconds with an ongoing notification you can stop anytime. ★ ADVANCED INFO Model, manufacturer, Android version, security patch, kernel, SoC, GPU name and OpenGL version, display resolution and refresh rate, storage, battery voltage / current / health, live per-core CPU frequencies, and a raw list of every thermal sensor your device exposes. Copy everything with one tap. ★ PRIVACY FIRST • No internet permission — nothing ever leaves your device • No ads, no accounts, no tracking, no analytics • No root required ★ 14 LANGUAGES English, 繁體中文, 简体中文, 日本語, 한국어, Español, Français, Deutsch, Português, Русский, Italiano, العربية, हिन्दी, Bahasa Indonesia. Note: some devices (for example certain newer Samsung and Xiaomi models) block third-party apps from reading CPU/GPU thermal sensors. On those devices CPU/GPU show "--" while battery temperature and memory still work. This is a system restriction that also affects other non-root apps. Check Advanced info → Thermal sensors to see what your device allows. HeatCheck only monitors temperatures; it does not cool down your phone.