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Thermals

Name: Thermals
Availability: InStock
Rating: 4.58 (1 reviews)

Stop wondering why your iPhone is slowing down. Get real-time data on thermal throttling, processor activity, and charging limits with professional-grade diagnostics.

System Utilities ›

Key Figures

Downloads

45K+

User Rating

4.6/5

Total Ratings

Publisher

George Garside

Master Your Device's Performance

Get real-time insights into thermal throttling and hardware behavior. Understand exactly why your device is slowing down, dimming, or charging slowly.

Real-Time Thermal Tracking

Monitor your device's thermal state to identify exactly when and why iOS starts throttling your performance or screen brightness.

History & Data Export

Record thermal fluctuations in the background and export raw data to diagnose performance drops or charging bottlenecks.

The following screenshots and description are sourced directly from the app's official store listing and are the property of the app developer.

App Store

Screenshots

Thermals - Thermals app interface displaying iPhone elevated temperature status and active processor count — Thermals app interface displaying iPhone elevated temperature status and active processor count

Thermals - A screenshot of the Thermals app on an iPhone showing a detailed list of background thermal records and device performance logs. — A screenshot of the Thermals app on an iPhone showing a detailed list of background thermal records and device performance logs.

Thermals - Thermals app displaying device temperature on Apple Watch and iPhone widget — Thermals app displaying device temperature on Apple Watch and iPhone widget

Description

Phone running slowly, charging slowly or low brightness? See if your device is overheating using Thermals. Thermals displays your device’s thermal state, as well as how many processors are active on your device and its uptime, as reported by iOS. Thermals helps troubleshoot: • Poor performance — iOS reduces processor speed and potentially disables processors temporarily when the device is hot. • Slow charging — battery charging causes a lot of heat and iOS can limit charging speed to reduce the additional heat that might make a device too hot. • Low maximum brightness — if your device screen stays dark despite being on full brightness, it could be limited by iOS due to heat. • Manufacturing defects — if not all processors are active when the device is cool and not in low power mode. Your device's thermal state is monitored regularly in the background and recorded in the app (if Background App Refresh is enabled). Open the app or tap the widget to record a data point manually. Export the raw data to file for corroboration with Screen Time, Xcode's Instruments, or other development tools. Also an independent Apple Watch app shows the thermal status, active processors and uptime, and thermal history of your watch.