Open App Scout
A curated, self-refreshing directory of real open-source application codebases - built for developers who want to learn from production apps and find projects worth contributing to.
This page lists names, links and short descriptions. The original list on GitHub is the source and belongs to its authors.
General
Productivity
AI Novel Writer
AI Novel Writer is a local-first desktop workspace that keeps characters, worldbuilding, outlines, chapter plans, drafting, review, and revision in one long-form fiction project. (Source)
anarlog
anarlog is an MIT-licensed, local-first AI meeting notepad for macOS, Windows and Linux that records device audio without joining the call as a bot and keeps notes in local SQLite. (Source)
AppFlowy
Bring projects, wikis, and teams together with AI. AppFlowy is the AI collaborative workspace where you achieve more without losing control of your data. The leading open source Notion alternative. (Source)
Authier
Authier is an experimental AGPL password manager monorepo with a React Native client, browser extensions, and a web vault for credentials and TOTP codes. (Source)
Butterfly
Butterfly is a Flutter note-taking and drawing app whose central object is an infinite canvas — pages hold freehand ink, text, shapes, images, areas, and waypoints in a custom .bfly document model, with optional WebDAV sync, OneNote import, and PDF/SVG export. (Source)
Feather
Free on-device iOS/iPadOS application manager/installer, using certificates part of the Apple Developer Program. (Source)
Habo
Habo is a Flutter-based, privacy-first habit tracker for iOS and Android that keeps every habit, note, and streak on-device by default and only syncs through an end-to-end encrypted Supabase backend. (Source)
Harbour
Docker/Portainer management app for iOS, iPadOS and macOS. (Source)
HorizonCalendar
HorizonCalendar is Airbnb's declarative, performant iOS calendar UI framework that renders month and week views from a single content value type, scaling from simple date pickers up to fully featured calendar apps on virtually infinite date ranges. (Source)
Humla
Humla is an MIT-licensed AI meeting-notes app for Apple Silicon Macs that records mic and system audio as two streams, identifies speakers offline and merges your notes with the transcript. (Source)
ish
A Linux shell environment running on iOS, useful for command-line work on mobile devices. (Source)
Joplin
Joplin is a free, open source note taking and to-do application. The mobile client is built with React Native and supports full sync via Nextcloud, Dropbox, OneDrive, WebDAV, and Joplin Cloud. (Source)
Karakeep
Karakeep is a self-hostable bookmark-everything application built on Next.js 16 + Hono + tRPC over Drizzle on SQLite with Meilisearch full-text and semantic search, capturing links, notes, images, and PDFs into a tagged personal archive with on-demand AI auto-tagging. (Source)
LibreTrack
Private, cross-platform package tracking app. (Source)
Linkwarden
Linkwarden is a self-hosted collaborative bookmark manager that captures every saved page as a screenshot, PDF, and HTML snapshot to defend against link rot. (Source)
Loofah
Loofah is an MIT-licensed, local-first meeting notetaker for macOS that records and transcribes on-device and stores notes as ordinary Markdown. (Source)
Meetily
Meetily is an MIT-licensed AI meeting assistant for macOS and Windows that transcribes live with Whisper or Parakeet and summarises with a local Ollama model, without a cloud service. (Source)
Memex
Memex is a Flutter-based, local-first AI journal for iOS and Android that captures text, photo, and voice fragments, runs them through a multi-agent skill system on a BYO-LLM, and weaves them into timeline cards, P.A.R.A.-organized Markdown knowledge, and chart-driven insights. (Source)
mhabit
mhabit (Table Habit) is a Flutter-based micro-habit tracker that scores daily completion against configurable curves, stores everything locally, and syncs across devices through any WebDAV endpoint. (Source)
Notesnook
Notesnook is a cross-platform, end-to-end encrypted note-taking app with web, desktop, and mobile clients that sync through a zero-knowledge server. (Source)
OnionBrowser
An open-source, privacy-enhancing web browser for iOS, utilizing the Tor anonymity network. (Source)
Orbit by Noveum
Orbit is a free, realtime task manager for issues, boards, projects, sprints, docs and files, with a hosted MCP endpoint for AI agents. (Source)
storypad
Storypad is an offline-first Flutter diary and journal app that uses a timeline instead of folders, layers mood tracking, photo memories, and customizable typography over a local ObjectBox store with optional Google Drive sync. (Source)
Taskuary
Taskuary brings email, chat messages, and reports into a local work inbox, uses AI to organize tasks and prepare replies, and routes work to agents for the owner to review. (Source)
UTM
Run virtual machines on iOS and macOS — Windows, Linux, and retro operating systems. (Source)
Weiyu
Weiyu is a local-first Windows desktop app that turns readable WeChat messages into searchable daily briefings, with history, speech-to-text, AI-assisted analysis, and a Codex bridge. (Source)
YouTrack Mobile
Official JetBrains YouTrack mobile app — issue tracking, agile boards, knowledge base, and notifications for YouTrack projects. (Source)
Finance
admin-portal
Flutter (Dart) admin client for the Invoice Ninja v5 invoicing platform, shipping to iOS, Android, macOS, Windows, Linux, and web from a single codebase. Uses Redux + built_value over a single AppState that carries up to ten UserCompanyState slots, talks to the Laravel backend over REST, and ships…
app-finance
Fingrom is a Flutter-built, ad-free, multi-currency personal finance app that ships to iOS, Android, macOS, Windows, Linux, and the Web from a single Dart codebase, with P2P device sync and end-to-end encryption. (Source)
BeeCount
BeeCount is a Flutter-based local-first bookkeeping app for iOS, Android, and Web that offers five interchangeable sync backends (the self-hosted BeeCount Cloud, iCloud, Supabase, WebDAV, and any S3-compatible store), AI-assisted capture via a dual on-device/cloud OCR pipeline, multi-ledger…
BlueWallet
Bitcoin wallet for iOS & Android. Built with React Native. (Source)
cake_wallet
Cake Wallet is an open-source, non-custodial, multi-currency crypto wallet for iOS, Android, macOS, Linux, and Windows, built with a Flutter UI over per-chain Dart plugin packages that bridge to native C/C++ wallet code (notably the monero_c wrapper around wallet2 for Monero). (Source)
MetaMask Mobile
MetaMask Mobile is the official Consensys-maintained mobile wallet for the Ethereum ecosystem, shipped as a React Native app with native iOS and Android modules that supports multi-chain accounts, a built-in dapp browser, and self-custodial key management. (Source)
Monekin
Monekin is an offline-first, open-source Flutter personal finance manager that tracks unlimited accounts, transactions, budgets, goals, investments, and debts across 50+ currencies, storing every byte on-device in SQLite with no account, no ads, and no internet connection required. (Source)
oinkoin
Oinkoin is an offline-first Flutter expense tracker that keeps every record in a local SQLite database, ships with biometric app-lock and CSV import, and adds wallets, recurring records, and tags behind a paid PRO build that doubles as the project's funding model. (Source)
peercoin_flutter
peercoin_flutter is a self-custodial light wallet for Peercoin and Peercoin Testnet, written in Flutter and shipped to Android, iOS, and the Web from a single Dart codebase that talks to public ElectrumX servers. (Source)
Rainbow
Rainbow is a multi-chain Ethereum wallet for iOS and Android, built on React Native with Reanimated 3 and Shopify FlashList for fast mobile UX and broad NFT, DeFi, and swap coverage. (Source)
sossoldi
Sossoldi is an MIT-licensed, Flutter-built personal wealth manager that tracks net worth, expenses, income, and investments across iOS, Android, macOS, Windows, Linux, and the Web from a single Dart codebase. (Source)
waterfly-iii
Waterfly III is a Flutter-built Android and iOS client for the self-hosted Firefly III personal finance manager, wrapping its REST API into a Material 3 mobile experience with offline dashboard charts, notification-driven transaction capture, and biometric app lock. (Source)
Education
Mathematics
Generate MCQ PDFs and question papers with answers and quiz mode. Useful for educators and students preparing for exams. (Source)
Tools
Airdash
AirDrop-style file sharing to nearby devices over Wi-Fi and Bluetooth, no internet required. (Source)
AltStore
AltStore is a sideloading app store for non-jailbroken iOS devices that re-signs installed apps with a personal Apple developer certificate and refreshes them in the background via a desktop companion to bypass Apple's 7-day signing limit. (Source)
apidash
API Dash is a Flutter-based cross-platform API client for building, sending, and inspecting HTTP, GraphQL, and SSE requests, with code generation for 20+ languages and an optional LLM assistant called DashBot that runs locally or against a cloud model. (Source)
BikeShare
SwiftUI, Jetpack Compose, Compose for Desktop and Compose for Web based Kotlin Multiplatform project (using CityBikes API http://api.citybik.es/v2/). Uses Room for local persistence. (Source)
Blink Comparison
Simplifies comparing photos of tamper-evident seals and patterns using your eyes. (Source)
brethap
Brethap is a Flutter meditation app that pairs a session timer with configurable six-phase breathing patterns, four selectable audio tones, per-phase vibration, and optional text-to-speech cues, persisting every completed session in a local Hive store. (Source)
Cap
Open source Loom alternative. Beautiful, shareable screen recordings. (Source)
Daily_You
Daily You is a privacy-first, offline-capable journaling app for capturing daily entries with text, mood ratings, photo memories, and Markdown notes — all stored locally with no accounts, ads, or telemetry. (Source)
Ejimo
A cross-platform emoji and symbol picker that goes beyond the system keyboard. (Source)
flutter_server_box
A Flutter-based, cross-platform client for monitoring and administering remote Linux, Unix, and Windows servers over SSH — combining real-time status charts, an embedded xterm terminal, SFTP file transfer, and Docker / systemd / S.M.A.R.T. management on iOS, Android, macOS, Linux, and Windows.…
GitUp
GitUp is a native macOS Git GUI built on a bespoke in-process Git toolkit (GitUpKit) that wraps a customized libgit2 fork and re-implements everything else — including its own rebase engine — to keep operations and the live commit graph fast on large repositories. (Source)
Helm
Helm is a macOS system toolkit that puts fifteen maintenance and monitoring tools behind one window and one menu-bar item, covering storage, hardware metrics, and clipboard history. (Source)
Immich
Self-hosted photo and video backup solution directly from your mobile phone. (Source)
MangoDisk
MangoDisk is a safety-first disk cleaner and storage analyzer for macOS and Windows that scans locally, visualizes disk usage, and lets users review paths and sizes before removal. (Source)
MarketMonk
A Flutter stock and portfolio tracker that combines Yahoo Finance market data, interactive charts, local trade records, and multiple account support. (Source)
NO SUS
NO SUS is a Flutter and Supabase privacy toolkit for students that opens your Saved files on a borrowed PC through a phone QR approval, sends self-destructing notes and files, and shares watermarked documents. (Source)
PeopleInSpace
PeopleInSpace is a Kotlin Multiplatform reference app that shares architecture and data code across iOS, Android, desktop, web, and wearable clients. (Source)
Shieldxy
An auditable macOS application firewall and connection monitor with explicit local network controls. (Source)
SubnetDesk
SubnetDesk is a cross-platform remote desktop for devices already connected by a LAN, routed private network, or VPN, with direct IP or hostname connections and local mDNS discovery. (Source)
SwiftHub
SwiftHub is an iOS GitHub client built on RxSwift and MVVM-C clean architecture, wiring Moya (REST v3) and Apollo (GraphQL v4) behind a flow-coordinator navigation graph with OAuth2 and personal-access-token authentication. (Source)
SwiftTerm
An Xterm/VT100-compatible terminal emulator implemented in Swift for iOS. (Source)
Tura
Build agent that uses 80% less token and delivers better results. (Source)
Unwrap
Learn Swift interactively on your iPhone. (Source)
Voicebox
Voicebox is a local-first AI voice studio that bundles seven TTS engines, Whisper STT, a Qwen3 LLM for refinement and personality, and a built-in Model Context Protocol server so any MCP-aware agent can speak in a cloned voice on a single desktop install. (Source)
xbmc
Kodi is a free, open-source cross-platform media-center and entertainment-hub application written primarily in C++ with a CMake build system, built on FFmpeg for codec support and featuring a binary addon framework, hardware-accelerated video playback, and a JSON-RPC control surface — running…
Developer Tools
Codex Quota Overlay
A Windows companion for Codex Desktop that displays quota and reset timing beside the conversation title. (Source)
Cortex
Cortex is an open-source CLI that turns API specifications and Markdown into interactive documentation, typed SDKs, and MCP servers. (Source)
d1v.ai Mobile
A Flutter mobile workspace for creating or importing projects, continuing AI-assisted work, inspecting files, and monitoring preview and deployment state from iOS or Android. (Source)
flutter-pos-system
An offline-first Flutter point-of-sale app for small restaurants and shops that runs ingredient inventory, menu management, customer demographics, order taking, Bluetooth receipt printing, custom analytics charts, and Google Sheets export entirely on-device with no remote backend. (Source)
localmind
A Flutter mobile chat client that connects to on-device LLMs and any OpenAI-compatible server — Ollama, LM Studio, OpenRouter — with markdown rendering, voice input, and an MCP tool layer. (Source)
LoopTroop
LoopTroop is an open-source coding agent orchestrator with multi-model planning councils, isolated Git worktrees, and human approval gates. (Source)
OpenDesign
A local-first Apache-2.0 desktop and web application that turns any of 27 coding-agent CLIs into a design engine, producing HTML prototypes, PDFs, PPTX decks, images, and HyperFrames MP4 against a portable DESIGN.md brand contract, with BYOK across OpenAI / Anthropic / Azure / Google / Ollama and…
QuotaTempo
QuotaTempo is a native macOS menu-bar app that compares remaining weekly Codex and Claude capacity with the even-use target for the current time. (Source)
Rockxy
A native macOS HTTP debugging proxy for inspecting HTTPS, API, WebSocket, and GraphQL traffic. (Source)
roxum-ide
A mobile-first Flutter code editor and mini IDE for Android with LSP, an embedded terminal, Git/GitHub tooling, and optional on-device GGUF model chat. (Source)
rustdesk
RustDesk is a self-hostable, cross-platform remote desktop application written in Rust with a Flutter UI, offering an open-source alternative to TeamViewer and AnyDesk for screen sharing, file transfer, and unattended access. (Source)
Tracexy
A native, local-first macOS app for capturing live network traffic and investigating PCAP and PCAPNG files. (Source)
Communication
Berty
Berty is a peer-to-peer messenger that runs entirely over the Wesh protocol on top of libp2p, so peers connect directly via mDNS, Bluetooth Low Energy, or Tor with no central server in the loop. (Source)
Keybase
Keybase Go Library, Client, Service, OS X, iOS, Android, Electron. (Source)
Mattermost Mobile
Mattermost Mobile is the official React Native iOS and Android client for the self-hostable Mattermost messaging platform, giving enterprise and dev teams on-device access to channels, threads, calls, and push notifications backed by the same REST and WebSocket API as the web and desktop clients.…
Rocket.Chat
Official Rocket.Chat mobile client — open-source team communication, channels, threads, file sharing, voice/video calls, end-to-end encrypted. (Source)
thunderbird-ios
Thunderbird for iOS – Open Source Email App for iOS. (Source)
Health and Fitness
medito-app
Medito is a permanently-free Flutter meditation app maintained by the Medito Foundation that streams guided sessions, multi-day courses, and themed packs from a CMS-backed catalogue, pairing each track with a just_audio + audio_service foreground player and an optional background-sound bed. (Source)
Open Food Facts
The mobile companion to Open Food Facts — scan barcodes, decode ingredient lists, and contribute new products to the open database. (Source)
wger
A Flutter workout and fitness tracker that syncs with the self-hosted wger server, supporting routines, exercises, and progress logs. (Source)
Business
Invoice Ninja
Companion app for the Invoice Ninja platform. Invoicing, expenses, time-billing, payments. (Source)
Mise
Mise is a self-hosted restaurant system for macOS that runs a till, a kitchen display, QR table ordering, and a back office from one machine on the restaurant's own network. (Source)
OpenPost
Self-hosted social publishing app for preparing, reviewing, scheduling, and tracking posts across several networks. (Source)
Orvaket
A browser-based accounts receivable board that turns CSV invoice exports into a human-reviewed follow-up plan. (Source)
Posnic POS
Posnic POS is offline-first open-source POS and billing software for retail shops and restaurants, built as a JavaScript/Electron desktop app with a local MongoDB-backed checkout. (Source)
Twenty
Twenty is an open-source CRM whose data model is a runtime artifact — every custom object, field, view, role, and AI agent is a row in metadata tables, with the GraphQL schema and SQL queries rebuilt per workspace on demand. Written in TypeScript with NestJS, React, PostgreSQL, and a native MCP…
Games
Flip
A Reversi board game implementation with a clean interface for casual play. (Source)
Media
AudioKit
AudioKit is a Swift audio synthesis, processing, and analysis framework for iOS, macOS, tvOS, and visionOS that wraps AVFoundation and a C-backed DSP engine. (Source)
EhPanda
EhPanda is an unofficial iOS and iPadOS client for the E-Hentai and ExHentai galleries, written entirely in SwiftUI on top of Point-Free's Composable Architecture, with a Combine/Kanna scraping layer and Core Data persistence. (Source)
one_second_diary
One Second Diary is a minimalist Flutter video diary app that lets you capture a one-to-ten second clip each day, then stitch your recordings into a shareable compilation movie of your life. (Source)
Swift-Radio-Pro
Swift-Radio-Pro is a Swift iOS streaming-audio reference app that plays live radio from a list of stations, surfaces now-playing metadata and album art, and integrates with the lock screen and Control Center. (Source)
Entertainment
ATV-Bilibili-demo
ATV-Bilibili-demo is an open-source Bilibili client demo built for Apple TV and its tvOS focus-driven interface. (Source)
Social Network
IceCubesApp
IceCubesApp is a SwiftUI-native, multi-platform Mastodon client for iOS, iPadOS, macOS, and visionOS, built and maintained primarily by a single developer (Dimillian). (Source)
Shopping
Artsy
Artsy Eigen is the official iOS and Android client for artsy.net, built as a React Native app with native Swift and Kotlin modules for browsing artworks, following artists and galleries, and participating in live timed auctions. (Source)
Flutter Games
Flutter app for purchasing and renting games. (Source)
Flutter WooCommerce app
A ready-made app template for WooCommerce stores. (Source)
News and Magazine
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