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MilliLog

Native iOS Game Controller Toolkit with Millisecond Precision

Soon available on the App Store!

MilliLog is a precision toolkit for game controllers on iPhone and iPad. Built entirely in Swift with no middle layers, it talks directly to Apple's GameController framework for the fastest possible response. Test every stick, button, touchpad and gyroscope. Trigger haptics, change light colors, and log every input with millisecond timestamps. Export your sessions as CSV or JSON for deeper analysis.

Features

🍎 100% Native Swift — No Middle Layers

⏱ Real-time Input Logging with Millisecond Precision Timestamps

🎮 Multiple Controllers Simultaneously

🕹 Stick, Button, Touchpad & Gyroscope Testing

🫨 Haptic Feedback Testing

🔊 Sound Feedback

💡 Controller Light Color Control

📤 Export to CSV and JSON

Compatibility

MilliLog relies on Apple's GameController framework, so only MFi-compatible controllers are supported. Generic, older, or USB-only controllers (such as classic PS1/PS2 adapters or unbranded gamepads) might not be recognized.

Apple Controller Connection Guide → Apple Controller Support Page →