Productivity

1843 open source Productivity apps

Reciper
APK
🍳 Reciper - Your Ultimate Kitchen Companion! 📱Manage your recipes with ease using Reciper:📝 Organize and store all your favorite recipes in one convenient place.🌐 Easily import recipes from any website and customize them to your liking.📤 Export your recipes for easy sharing or backup.🎨 Enjoy a beautiful and stylish Material You design.🆓 Reciper is open source, ad-free, and completely free for a seamless culinary experience.📲 Download Reciper today and simplify the management of your recipes!Transform your cooking experience with Reciper! 🍽️
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Reckoner
APK
Use Reckoner to reckon with your finances and take control of your financial future! Reckoner is an encrypted, local first, personal financial tracker. This financial tracker is focused on the user. This application respect user privacy by providing an offline first encrypted data storage. You have the freedom to customize the application layout and add custom views for displaying your information at a glance. Reckoner allows you to create the layout you want without artificial limits.Secure and Private: Reckoner encrypts data on device using AES 256 bit encryption. Reckoner also allows you to setup a separate passcode for the application so people cannot open it from your unlocked phone. By default data is offline only, but you can synchronize data end-to-end encrypted with AES 256 bit encryption to a PocketBase server you control. You can backup the database to any storage location you want or on a regular schedule or on demand; encrypted by default.Make it Yours: With report groups, you can add any report supported and create an overview that you want. The UI layout can be reordered to allow for you to choose which screen to show on startup. Hide any unused screens you don't use or add more as it fits your use case. There are also app themes which can be applied if you want a dark theme, light theme, or AMOLED black theme.Custom Categorization: Categories in Reckoner are flexible and allow you to use them the way you want. Nest categories within one another for a more intuitive experience. Attach budgets to categories to allow traditional budget planning on the cadence you want: yearly, monthly, daily or anywhere in between. You can have as many category groups as you want in Reckoner each of which could have or not have budgets as you desire. Don't want to touch categories at all? Reckoner supports tagging of transactions.Designed for all Devices: Reckoner has an adaptive layout which adjusts to your device. Whether your screen folds out or you connect to an external display, you will be presented with a UI optimized for the available screen size. Pocketbase synchronization works across all devices which run Reckoner: desktop, mobile, or web.Automatically Sync Data With SimpleFin support, Reckoner supports automatically downloading financial information from your accounts! Automatically have your financial information loaded into Reckoner. Note that using SimpleFin means you are subject to their privacy policy. Reckoner still queries and saves the data from SimpleFin to your device without any cloud necessary!Used permissions: - Storage: Needed only when you create or restore a backup file. - Network (Internet Access and Network State): Used only when synchronization is enabled. - Biometric and Fingerprint: Used for secure password storage and when using biometrics for unlocking.
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Reckoning Skills (Privacy Friendly)
APK
Privacy Friendly Reckoning Skills helps you improving your mental calculation skills in the four basic calculating operations. For each game, the player can choose between the four basic arithmetic operations and four difficulties (exercises up to 10, 100, 1000 and 10000). After finishing an exercise round the player receives a score which depends on the number of exercises answered correctly and the time it took to answer all ten exercises. After every game there is an overview which shows whether the exercises were solved correctly. It is also possible to choose "Direct Feedback" in the settings. If direct feedback is chosen, the player will receive feedback whether the exercise was solved correctly after each single exercise. How does Privacy Friendly Reckoning Skills differ from other similar apps? 1) No permissions Privacy Friendly Reckoning Skills does not require any permissions. For comparison: The Top Ten of similar apps from the Google Play Store requires an average of 3,4 permissions (in November 2017). These are for instance the location permission or the permissions to access, modify or delete storage. 2) No advertisement Moreover, Privacy Friendly Ludo distinguishes from many other applications in the way that it completely relinquishes advertisements. Advertisement might track a user's actions. It could also shorten battery life or use mobile data. This App requires minimal permissions and is part of the Privacy Friendly Apps group developed by the research group SECUSO at Technische Universität Darmstadt. More information can be found at https://secuso.org/pfa Feel free to contact us via: Bluesky - @secusoresearch.bsky.social https://bsky.app/profile/secusoresearch.bsky.social Mastodon - @SECUSO_Research@bawü.social https://xn--baw-joa.social/@SECUSO_Research/ Job opening - https://secuso.aifb.kit.edu/english/Job_Offers.php
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Recurring Expense Tracker
APK
A Material You recurring expense tracker, allowing you to keep track of your monthly spending. As the name suggests, this app focuses on recurring expenses like rent, insurance, subscriptions, and other regular payments. Built with Kotlin Multiplatform and Material You design principles, it provides a simple yet powerful way to track and visualize your recurring financial commitments. The app is designed to be intuitive and straightforward, helping you understand exactly where your money goes each month. My idea is to add new features iteratively, and I'm happy for any contribution. Feel free to make feature requests or report bugs if you find any.
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Red Moon
APK
Blue light may suppress the production of melatonin, the sleep hormone. Red Moon filters out blue light and dims your screen below the normal minimum, so you can use your phone comfortably at night. Features: - Schedule Red Moon to run from sunset to sunrise, or at custom times. - Use the default color profiles, or set custom color, intensity, and dim levels. - Automatically pause in apps secured against overlays, or those you choose. - Quickly start, stop, and switch profiles via notification, tile (Android 7.0+), or widget. Permissions: - Modify system settings: To automatically lower the screen brightness when the filter is on - Approximate location (network-based): To determine the sunrise and sunset at your location. This will only be used when you configure Red Moon to automatically start at night. - Draw over other apps: To change the color and brightness of the screen in all apps - Run at startup: To restore the previous filter state at startup
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Red Screen
APK
Shows a bright red screen for use as an ad-hoc emergency light or as a penalty card. If triggered from outside, it turns on the screen and raises atop of the lock screen. The colour can be overridden with an intent parameter (see README on Github).
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Reef
APK
Reef: Stay Focused and Boost ProductivityReef is your ultimate productivity companion, designed to help you stay focused, manage screentime, and minimize distractions. Whether you’re working, studying, or simply want to disconnect from unnecessary distractions, Reef empowers you to take control of your time and focus on what matters.Note: We use Accessibility Service to know when you are using unproductive apps and close them automatically. No information leaves your device, nor is it distributed to any third parties.Key Features:Focus Mode: Enter focus mode to pause distracting apps and stay productive. Once your focus session is over, all apps resume automatically, letting you get back to them without interruption.Routine Scheduling: Set up daily or weekly routines to automatically activate focus mode during specific times. Whether it’s work hours, study sessions, or personal time, Reef adapts to your schedule.App Whitelist: Customize your focus sessions by whitelisting essential apps that you still need access to, even during focus mode. Keep important tools available while pausing distractions.App Usage Limits: Set daily limits for apps and receive reminders when you’re nearing your limit. Manage how much time you spend on social media, games, or any other apps that distract you.Pause & Resume: With a single tap, pause apps during focus mode and resume them effortlessly when you’re done. This simple control helps you manage distractions with ease.Digital Well-being: Reef helps improve your digital well-being by promoting healthy app usage habits. Cut down on screen time and reclaim your focus to achieve your goals.Personalized Experience: Tailor your focus settings to your lifestyle. Whether you want to focus for a few minutes or a few hours, Reef adapts to your needs.Why Choose Reef?In a world filled with distractions, Reef helps you regain control over your time and attention. Whether you’re studying, working, or just need a break from constant notifications, Reef is the perfect tool to boost your productivity and maintain a healthy balance between your digital life and your real-world responsibilities.Take control of your time, eliminate distractions, and achieve more with Reef!
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Remember My Sort
APK
Android's file picker (DocumentsUI) resets sort order every time you navigate into a folder. This Xposed module persists your sort preference across directories and sessions. Features: Tap a sort option to set the global default Long-press a sort option to save per-folder preference Per-folder overrides take priority over global default Requires official LSPosed framework, Android 11+ and root access. Supported packages: com.google.android.documentsui (Google Pixel) com.android.documentsui (AOSP)
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Remote Numpad
APK
Server download: https://github.com/theolizard/remote-numpad-server/releases With Remote Numpad, you can add the convenience of a numeric keypad to your laptop. You can use this numpad in 3 different ways. Using the Bluetooth HID profile (experimental), you can use Remote Numpad with any Bluetooth-enabled device (Android P or more required). Using the classic Bluetooth or TCP (Wi-Fi) connections, a server application needs to be running on the device. The server can be downloaded from "https://github.com/theolizard/remote-numpad-server/releases" where you will also find more information. IMPORTANT: The classic Bluetoooth and TCP (Wi-Fi) connections WILL NOT WORK if the server is not running on the other device. A tutorial video can be found at "https://youtu.be/xTfQparcgg4". The project is open source and all contributions are welcome over at "https://github.com/theolizard/remote-numpad".
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Rental Calc
APK
The developer is currently on hiatus from the project. Questions and pull requests may not be looked at for some time. Are you interested in investing in real estate and want to rent out homes? Not sure how to determine if a property is a good investment? Rental Calc helps real estate investors determine if a potential property is worth buying and renting. Create a property entry, enter a few fields, and Rental Calc will compute what you need at closing, your projected cash flow, and various returns on your investment.
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RepWifi
APK
RepWifi enables Internet access via USB Wi-Fi adapter.
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Repay
APK
Lending money to your friends can get messy. You can lose track and have disputes over it, or forget altogether. With Repay you can keep track of everything you've lent them, and what they've lent you too using a simple, fast system to store an IOU in your device so you never forget. There's no need to make any accounts or give any bank account information, it's just a simple record you keep to make sure you're never out of pocket.
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RepoStore
APK
RepoStore is a native Android app that turns GitHub releases into a clean, Play Store-style experience. Key Features: • Smart Discovery - Home sections for Trending, Recently Updated, and Featured projects. Only repos with valid APK assets are shown. • Latest-Release Installs - Fetches the latest release for each repo and shows only assets from the newest release with a single Install action. • Rich Details Screen - View app name, version, stars, forks, language stats, rendered README content, release notes with markdown formatting, and screenshot gallery. • Install & Update Tracking - Tracks installations and shows when updates are available. Shows "Open" for installed apps. • Material You Design - Material 3 design with dynamic theming support and dark mode. • GitHub Integration - Optional GitHub sign-in to increase API rate limit from 60 to 5,000 requests/hour. How it works: RepoStore uses GitHub's public API to search for Android repositories. It filters to show only those that have real, downloadable APK files in their releases. When you find an app you like, tap Install to download and install it directly. Privacy & Security: • No tracking or analytics • No ads • Open source (MIT License) • Downloads come directly from GitHub releases • HTTPS-only connections Requirements: • Android 8.0 (API 26) or higher • Internet connection RepoStore is free and open source. If you find it helpful, consider starring the GitHub repository!
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R
Reset all Notification Channels
APK
This Xposed module will prevent the Notification Channels from being loaded upon boot, so they all need to be recreated by the respective apps. This effectively resets all Notification Channels: vibrations, ringtones, importance, etc.This will not revoke the notifications permission.WARNINGThis will permanently and irrevocably reset all settings for Notification Channels.This module will do that on every boot when it's installed.
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Restic
APK
This app aims to make Backups on Android easy and fast using Restic. It also makes use of termux/proot to run the Restic linux binaries on Android. This project is still in a very early state and contributions are welcome!Disclaimer: This project is not an official app made by the restic team.Features:Manage Restic Repositories (S3 is currently the only supported protocol)Manage Restic SnapshotsManage Folders for BackupConfigure Schedules for automatic BackupsConfigure Cleanup Policies for FoldersProgress Notification
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Resticopia
APK
A mobile Android application that enables efficient and straightforward data backups powered by Restic backup software.The application uses a custom-built PRoot environment (based on the build-proot-android project) to run native Restic and Rclone Linux binaries directly on Android devices.Disclaimer: This is an unofficial application and is not developed or endorsed by the official Restic project team.Key Capabilities:Repository Management: Create and configure Restic repositories (supports S3, B2, Rest, Local, and Rclone protocols)Snapshot Control: Browse and manage your backup snapshotsFolder Selection: Choose which directories to include in backupsAutomated Scheduling: Set up recurring backup tasksRetention Policies: Define cleanup rules for individual foldersLive Progress: Monitor backup operations through system notificationsRclone Integration: Access 40+ cloud storage providers via Rclone backend
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Retherm
APK
Retherm is a simple application that converts resistances from RTD sensors to temperature. This app can currently convert Pt100, Pt500 and Pt1000 resistances to degree Celsius or Fahrenheit. The standard equations are done to the popular European/DIN standard for the temperature range of -200°C to +850°C with an average margin of error of about 0.02°C. An option is available for calculations to the less used American standard for the range 0 to 100°C with an average margin of error of about 0.2°C. Retherm has the option to convert thermocouple voltages to degrees. The calculations are based on a 0°C reference junction temperature and use NIST polynomial values to make conversions. Types B, E, J, K, N, R, S and T are supported with outputs showing in both centigrade and Fahrenheit depending on your preference. Retherm also features handy links to useful websites with vital information about RTD sensors. This app is for built for quick reference use. There may be errors, although I try my best to make sure there are none. I, The application creator, will not be held liable for any problems caused due to errors within the application. If any problems are found, feel free to raise these via Codeberg. This application is open source, available under the MIT license, and can be found at the following URL: https://codeberg.org/danb/retherm
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RevEngi App
APK
FeaturesRevEngi App encompasses a variety of functionalities, including:JNI Analysis: Extract JNI signatures from APK files to understand native method interfaces.Flutter Analysis: Analyze Flutter libraries to gain insights into application structure and behavior.Blutter: A dedicated tool for in-depth analysis of Flutter binaries.MT Hook: Generate MT Enhanced Hooks for advanced instrumentation and modification.Dex Repair: Repair corrupted DEX files to salvage and analyze application code.Smali Grammar Reference: Quick & Advanced access to Smali instruction set like their opcode, format, and description for code analysis and manipulation. Examples are also provided where applicable.Theme Customization: Offers light, dark, and system-based theme options.API Key: Get your API key from the profile section and use it to access RevEngi API, integrate it with your own tools and scripts.
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Reykunyutsyìp
APK
Reykunyutsyip is an unofficial Android client app for the Reykunyu Na'vi dictionary, with Material design. The dictionary website itself is also open-source.Features:Automatically cached dictionary for searching even when you're offlineOffline translate mode with limited functionalityOnline translate mode!Supports searching in German, Estonian, English, Na'vi, French, Hungarian, Dutch, Polish, Russian and Swedish.A really nice-looking Na'vi word card containing a bunch of informationHere are some notable featuresplayable audio pronunciation examplesRich text with Na'vi reference hyperlinksAnimal images :)Reykunyu ("someone who lets you discover things") is a dictionary in which you can search for Na'vi words and see the English translation and other information about that word. Reykunyu tries to give more detailed information than other dictionaries. The Naʼvi language is a fictional constructed language originally made for the 2009 film Avatar. In the film franchise, the language is spoken by the Naʼvi, a race of sapient humanoids indigenous to the extraterrestrial moon Pandora.
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Ricevapp Documento Commerciale
APK
Tired of the Hassle? Meet Ricevapp Documento Commerciale. Are you a craftsman, merchant, or professional who needs to issue a "Documento Commerciale Online"? You know that the official service doesn't have its own app and that logging in through a browser every time can be cumbersome. That's exactly why I developed Ricevapp Documento Commerciale. I created it primarily for myself: I needed a quick, cost-free solution for accessing the service and issuing tax receipts. Your Free Solution for Tax Receipts Ricevapp is a third-party web-app that solves a practical problem: your need for instant access, every time, without paying for subscriptions: • Maximum Access Speed: The app gets you to the online commercial document procedure as efficiently as possible, saving you valuable time. If you wish, you can save your Fisconline/Entratel credentials exclusively locally on your device to speed up the entire login process. • Protected and Compatible Access: To ensure privacy, app access is protected at every launch. It uses the unlock method set on your device (such as fingerprint, face recognition, PIN, or pattern). This prevents unauthorized access to your saved data. Note: The unlock method is only requested if you have set one up in your device's security settings. • Free Forever: Forget the costs of a cash register or subscription-based software services. This app is and will always remain completely free. • Designed by a Worker for Workers: Developed by a craftsman who understands the need for simple, effective, and, above all, free tax tools. ⚠️ Important: Mandatory Disclaimer Ricevapp Documento Commerciale is a third-party application and is in no way affiliated with or supported by the "Agenzia delle Entrate" (Italian Revenue Agency). The app solely provides facilitated access to the publicly available "Documento Commerciale Online" service. Download Ricevapp now and make accessing your online tax service faster and more secure!
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RidgeScout
APK
This is a scouting app for First Robotics Compitition matches by Ridgebotics, that includes many features. Wiki: https://github.com/team4388/ScoutingApp2025/wiki
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Ridmik Dictionary
APK
Based on ankur.org's database. More info here.
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Riichi Mahjong Calculator
APK
Riichi Mahjong Calculator, supporting features such as hand efficiency, meld hand efficiency, winning hand analysis, and score calculation for fan and minipoints. - Hand Efficiency: Includes tile efficiency, good-shape tile efficiency (for one-shanten only), and backwards strategy. - Meld Hand Efficiency: Tile efficiency for chow, pung, kong, and pass; includes good-shape tile efficiency (for one-shanten only) and backwards strategy. - Winning Hand Analysis: Defaults to Mahjong Soul/Tenhou rules, with customizable rules to some extent. - Score Calculation By Fan and Minipoints: Defaults to Mahjong Soul/Tenhou rules, with customizable rules to some extent.
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Ril Control
APK
This app allows you to stop or start the ril-daemon process on your Oreo Android phone with the tap of a button. It is primarily made for the LG G4 users on the AOSCP Oreo rom, but may work for other purposes. This app requires ROOT permission.
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