CarterWare
Account
$1.99
Game HUD
See how your iPhone is really doing while you play.
Add once: https://tweaks.carterware.net/
What it is
Game HUD puts a small overlay over any app or game with the real on-screen frame rate, CPU load, battery temperature and memory. Tap it to lock that app to 120 Hz or 60 Hz, relaunch it, or Boost away the apps running in the background.
Main features
- Real on-screen FPS: counts the frames that reach the display, so a still screen reads IDLE
- CPU load, battery temperature with a thermal-state dot, and app or free memory
- Frame rate per app: unlock 120 Hz for games stuck at 60, or hold an app at 60 to save battery
- Boost closes background apps, never the one you’re using, audio, calls, FaceTime or navigation
- Drag it anywhere; it rotates with landscape games and remembers portrait and landscape spots
- Show it in every app or only the apps you choose
How to use
- Install, then open any game — the HUD sits at the top center
- Drag it out of the way if a game puts buttons there
- Tap the HUD, pick 120 Hz and tap Relaunch
- Fine-tune readouts, layout and Chosen Apps in Settings → Game HUD
Tips
- Settings → Game HUD → Frame Rate per App lists every app with its own rate
- Turn on Boost When a Chosen App Opens to free memory before a game starts
- Reset HUD Position puts it back at the top center
Honest limits
120 Hz needs a ProMotion display (iPhone 13 Pro and later Pro models). Games that cap their own frame rate stay capped, and a new rate applies the next time the app opens. Temperature is the battery sensor, not the CPU. Tested on iPhone 14 Pro Max (iOS 16.3.1) and iPhone 15 Pro Max (iOS 17.1).
FAQ
Can Game HUD make a game run at 120 Hz?
Often, yes. Many games are held at 60 Hz only because they never asked for more. Game HUD tells the game it may use ProMotion and raises its frame rate requests to 120. Games that limit their own frame rate in code stay at their limit.
Does the HUD slow games down?
It updates a few times a second and does no work while it’s hidden or the screen is off. Pick a slower Update Every in Settings if you want it even lighter.
How much does Game HUD cost?
$1.99 one-time, or covered by CarterWare Tweak Pass ($10/mo) while active.