The Metal Performance HUD shows live FPS, GPU time, and frame rate as an overlay on your games.
Here's how to enable Metal HUD on iOS without Xcode, Terminal, or jailbreaking — using FPS Logger on your Mac.
A Mac with Apple Silicon (M1 or later), running macOS 26.2 or later
An iPhone, iPad (iOS/iPadOS 17+), or Apple TV 4K
A USB cable to connect your device to your Mac
FPS Logger — download free on the App Store: https://apps.apple.com/us/app/fps-logger/id6763967836
Connect your iPhone or iPad to your Mac with a cable. Tap Trust if your device asks.
Open FPS Logger on your Mac. Your device appears in the list — select it.
Enable Developer Mode on your device if prompted (Settings > Privacy & Security > Developer Mode), then restart.
Pick the game you want to profile from the list.
Click launch. FPS Logger opens the game with the Metal HUD overlay showing live FPS.
That's it — no Xcode, no Terminal, no jailbreak. You can also customize which metrics the HUD displays and log full performance sessions.
Note: Metal HUD works per app by design on iOS — there's no system-wide overlay. FPS Logger lets you enable it for any game without the developer setup Apple normally requires.