What iOS version is required to use the Time Timer App? November 30, 2023 22:06 Updated Your iPhone must be an iPhone 8 model or newer and be running iOS 16 or newer to download and use the Time Timer App. Related articles Time Timer MAX Demonstration Will the App Update work on my phone? Time Timer Battery Life How to set a repeating Timer. How do I prevent my device from falling asleep while Timers are running?