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  1. 1zhangyy1/momoding

    把你的手机变成 AI 手机:一个住在手机里的 Personal Agent,交代一句就替你办好。Turn your phone into an AI phone.

    Kotlin★ 48GPL-3.0GitHub ↗

  2. v1tzor/StudyAssistant

    Free. Offline-first, AI-agent, Tasks, TODO, Goals, Timer, Statistics, Analytics, Multi-Org

    Kotlin★ 47Apache-2.0GitHub ↗

  3. HF-CYGG/Dawn-Course

    一个免费、轻量的开源课程表app(已适配新旧正方、强智、青果教务系统)

    Kotlin★ 47GPL-3.0GitHub ↗

  4. YashBhadange2006/TinyAI

    On-device AI assistant for Android built with Kotlin, featuring local LLM inference, offline AI capabilities, and edge AI experimentation.

    Kotlin★ 47Apache-2.0GitHub ↗

  5. Verlintas/NovaBAIC

    BetterAIChat2 (BAIC2) — 本地优先的 Android AI 智能体:57 个真实设备工具(无 GMS:截屏 OCR / UI 自动化 / 离线定位 / 文件 / 网页 / 提醒 / 通知触发自动化 / 技能与子代理)、仿生记忆(别名、时间线、自省巩固、出处、时间旅行、导出/导入)、中途提问、MCP。Local-first Android AI agent with real device control. GPL-3.0-or-later.

    Kotlin★ 46GPL-3.0GitHub ↗

  6. Bn5prS/Photon_Gallery

    An open-source, privacy-focused Android gallery app built with Material 3 Expressive design and smart features.

    Kotlin★ 45GitHub ↗

  7. NumberOneBot/ChairPlay

    Wireless Apple CarPlay receiver for Windows. Connects an iPhone over Bluetooth and Wi-Fi and shows CarPlay in a window, with mouse touch, keyboard knob controls, audio, Siri and microphone.

    Kotlin★ 45GPL-3.0GitHub ↗

  8. Mr-J-369/Fancy-Ai

    Offline roleplay app where characters have social media app. offline image generations including Sd1.5, SDXL, Flux, ZiT, Moss and Qwen image. Also terminal to run ubuntu and many more. The app is opensource and free. If you like my project, a support is highly appreciated to keep it up.

    Kotlin★ 44Apache-2.0GitHub ↗

  9. alexeyw/knotwork

    An AI agent you build, not just prompt. Local-first Android agent with on-device inference (LiteRT-LM), pipelines you assemble yourself, MCP tool calling, and your confirmation before any risky action.

    Kotlin★ 43Apache-2.0GitHub ↗

  10. weenas/castbay

    映湾 CastBay: a free, open-source AirPlay and DLNA receiver for Android big screens — TVs, TV boxes, car displays and tablets. Screen mirroring, music with lyrics, video casting.

    Kotlin★ 42GPL-3.0GitHub ↗

  11. raulshma/jellyplay

    Jellyfin client for Android, Android TV & Fire TV. Native Kotlin/Jetpack Compose app with ExoPlayer, mpv & VLC playback, synced-lyrics music, offline downloads, SyncPlay, IPTV, and Jellyseerr/Overseerr requests. Open-source self-hosted media player.

    Kotlin★ 42GPL-3.0GitHub ↗

  12. thobgg/TeXslate

    Nativer LaTeX/XeTeX-Editor für Android — Tablet-first (Compose + Tectonic)

    Kotlin★ 37GPL-3.0GitHub ↗

  13. Benji377/Timety

    An offline-first Android app uniting tasks, focus timers, and habit tracking

    Kotlin★ 36GPL-3.0GitHub ↗

  14. hackintoanetwork/SCRoot

    One-click rooting and KernelSU-Next tool for the Samsung SCR-01 mobile 5G router.

    Kotlin★ 36GitHub ↗

  15. greyfoundry/ursa-android

    Native Android client for Uptime Kuma: real-time monitoring, multi-server, and FOSS push (UnifiedPush, no relay, no Firebase).

    Kotlin★ 30MITGitHub ↗

  16. Yasinjahantigh/LogaRhythm-Android

    A privacy-first, offline-first music player for Android. Kotlin, Jetpack Compose, Media3, Room.

    Kotlin★ 30Apache-2.0GitHub ↗

  17. saisaharsh3/Leftovers

    A fast, private expense tracker for Android: log a spend in two taps, see what's safe to spend today, and plan ahead. Data stays on your phone.

    Kotlin★ 29MITGitHub ↗

  18. HuZaiGong/flowreader

    FlowReader —— 开源的 Android 离线电子书阅读器,支持 EPUB/TXT/MOBI/FB2/漫画 CBZ,无广告、无需账号、隐私优先。Open-source offline ebook reader for Android.

    Kotlin★ 27GPL-3.0GitHub ↗

  19. Dreamucxe/GameCore

    Android gaming overlay, performance monitor and per-game profile manager. Every number it shows is one the platform actually reported — where Android will not answer, it says so instead of guessing.

    Kotlin★ 27MITGitHub ↗

  20. piot5/keytab

    Offline-first keyboard (IME) that doubles as a mobile IDE: built-in file manager, editor, clipboard and snippet tabs with on-device word prediction. No INTERNET permission, no data collection.

    Kotlin★ 27MITGitHub ↗

  21. jaimebg/Ambio

    Android focus timer that blends up to three ambient sounds into one soundscape, with the palette and particle field mixed from all of them: Pomodoro presets, adaptive tablet layout, 47 languages, fully offline. Jetpack Compose.

    Kotlin★ 26MITGitHub ↗

  22. PickGear/PalmNote

    PalmNote —— 本地优先(local-first)的生活记录应用:记账、物品管理、生活规划与离线密码本。数据全部保存在本机,无需注册、无需联网,支持中英文。

    Kotlin★ 26GPL-3.0GitHub ↗

  23. dbjpanda/kwery

    Server state for Android. Decides when your app calls the network, dedupes in-flight requests, and replays writes made offline.

    Kotlin★ 26Apache-2.0GitHub ↗

  24. kerrybob46644-commits/AirBridge

    AirPlay 2 audio sender for Android — stream any app audio to HomePod / Apple TV. 安卓 AirPlay 2 音频投射器

    Kotlin★ 17Apache-2.0GitHub ↗

  25. msthind04/AppleTV-Remote

    Open-source Apple TV remote for Android. Native Kotlin implementation of Apple's Companion Link protocol - no server or bridge required.

    Kotlin★ 16Apache-2.0GitHub ↗

  26. LTechnologies0/OnionVPN

    Tor + DNSCrypt VPN for Android — torrified traffic with kill switch (OnionPhone family)

    Kotlin★ 15GitHub ↗