I would like to inquire about Apple's recommended best practices for iPhone thermal management. Specifically, what actions are developers expected to take to prevent the device from overheating? I am aware that we should subscribe to Thermal State Notifications and throttle performance accordingly—such as by reducing streaming quality or temporarily disabling active features. Beyond these measures, are there any other strategies you recommend to mitigate thermal issues and help the device cool down?
Beyond these measures, are there any other strategies [to] help the device cool down?
It’s hard to answer that without knowing more about what your app does. The general answers is:
- Work out which operations in your app use a lot of power.
- When you receive a thermal state notification, stop or reduce those.
For lots of good info on how to get started with step 1, watch WWDC 2025 Session 226 Profile and optimize power usage in your app.
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Quinn “The Eskimo!” @ Developer Technical Support @ Apple
let myEmail = "eskimo" + "1" + "@" + "apple.com"