Apps by
Jiayin Li

Independent developer building tools for Apple platforms — iOS, macOS, and watchOS.

Jiayin Li View my profile →
Apps
AllMyBatteries icon
AllMyBatteries
iPhone · iPad · Mac · Watch

Track battery levels for all your Apple devices, AirPods, and Bluetooth accessories — synced via iCloud across all your devices.

Learn More App Store ↗
PIPin icon
PIPin
macOS · iOS · Free

The only macOS app that keeps your pinned window live and interactive — even when you switch Spaces or move into a fullscreen app. Unique Virtual Display tech means it never freezes.

Learn More iOS
HTTPWidget icon
HTTPWidget
iPhone · iPad · Mac

Display live data from any HTTP API right on your home screen widget. Fully customizable templates with no coding required.

App Store
AI Packing List icon
AI Packing List
iPhone · iPad · Mac

Let AI generate a perfect packing list tailored to your destination, duration, and activities. Never forget an essential again.

App Store