Know the moment your iPhone runs hot
An iPhone and iPad app that tracks your device's thermal state, logs every heat-up with its duration, and warns you when it's hot while charging. All data stays on the device.
Key Features
A six-tier dial (Cool to Critical) that updates while the app is open.
Home Screen and Lock Screen widgets show your heat level and charging status without opening the app.
Every thermal change is logged with its duration, so you can see how long your device ran warm.
Get notified on thermal spikes, with an optional 8 PM recap and a choice of alert sounds.
Why We Built This
Your phone gets hot and never tells you why
iOS gives apps exactly four thermal levels and no temperature reading, so most "phone temperature" apps either invent numbers or guess at which app is to blame. We wanted the honest version: take the thermal signal Apple actually exposes, turn it into a readable gauge, log every transition so you can see how often your device runs warm, and be blunt about the limits. Charging while hot is hard on a battery, so the app flags that moment specifically instead of leaving you to notice it yourself.
Six tiers from Cool to Critical, interpolated from the real thermal state, charging, and time-in-state — always labeled as an estimate, never as degrees.
Heat while plugged in wears the battery, so the Charging tab shows a safe/not-safe banner, a live cooling timer, and a nudge to unplug.
No account, no servers, no analytics, no tracking. History lives in local storage and deleting the app deletes all of it.
Get Started Today
Get HeatSeek Mobile on your preferred platform — it takes seconds.