Android Data Backup Application. This project offers backup and recovery features for app data on systems running Android 7.0 and above, addressing issues like the need to re-login or download additional data packs when switching devices.

Android Barcode Scanning Application. This is a simple and easy-to-use, ad-free Android barcode and QR code scanner that supports rapid recognition of a variety of barcode and QR code types, and provides QR code/barcode generation capabilities.

Android App for Analyzing WiFi Signals. This project is a WiFi analysis tool written in Kotlin, offering intuitive graphical representation of WiFi network conditions, supporting the identification of surrounding WiFi, measuring signal strength, and viewing channel congestion, among other features.

All-in-One Game Emulator on Android Devices. This multi-emulator, based on Libretro, enables you to play various retro games on Android devices. It offers features such as instant save states, local multiplayer, customizable buttons, and supports emulation of various gaming consoles including NES, GBA, 3DS, and PSP.

Minimalist Android Weather App. This is a weather application that highly emphasizes design, adopting the Material Design language. It is simple and clean, free of ads, supports Chinese, and can display precipitation in the next hour, air quality, hourly forecasts, real-time weather data, pollen, humidity, and various other weather data.

An Open-Source Android File Manager. This project is an Android file manager developed in Kotlin, adhering to the Material Design guidelines. It is lightweight, concise, and secure, supporting root permissions for file viewing and management, file compression/decompression, and remote file viewing on servers, suitable for Android 5.0+ systems.

An Ancient Chinese Poetry and Idiom Application. It's called 'JingMo', a free Android reading app that contains a wealth of traditional Chinese cultural content, including ancient poems, two-part allegorical sayings, idiom stories, Chinese traditional festivals, tongue twisters, etc. When you first install and open the app, you won't see any content; you need to manually synchronize the data in the settings.

Highly Customizable Calendar Library for Android. This is a library for developing Android calendar applications, including a sample app. It features week or month view modes, boundary dates, horizontal or vertical scrolling, and more, allowing for fully customizable calendar designs.

Open Source Android Online Music Player. This project is an Android music player written in the Kotlin language, supporting the features of adding and playing local music, control from the notification bar, synchronizing NetEase Cloud music playlists, daily recommendations, searching for songs and playlists, etc.

Android App for Custom Screen Touch. This project is an automatic click tool based on accessibility features that supports custom or subscription click rules, which can be used to automatically complete operations such as skipping ads, consenting buttons, receiving red packets, etc.