Productivity

1843 open source Productivity apps

Codec Info
APK
Codec Info is a simple tool that provides detailed listing of multimedia encoders and decoders (codecs) that are available on your Android device.Features:Get info about audio codecs (max supported instances, input channels, bitrate range, sample rates and tunneled playback)Get info about video codecs (max resolution, frame rate, color profiles, adaptive playback, secure decryption and more)Easily share codec info with othersNo ads!NOTE: Available info may vary depending on a device and the Android version. Bluetooth codecs are NOT supported.
GitHubIzzyOnDroid
Coffee
APK
Keep your screen awake with Coffee, this simple utility keeps your screen awake right when you need it.Most devices auto-dim screens to save battery during reading, navigation, or recipes. However, this can be frustrating when you need the display on. Coffee lets you lock the screen awake easily.Features:One-tap Quick Settings tile toggle.Force screen awake with custom timers or indefinite.Lightweight with no ads.Important Note:Screen awake mode uses foreground service and WAKE_LOCK, which may impact battery. Toggle off when done.
F-DroidGitHubIzzyOnDroid
Coin Collection
APK
Coin Collection helps people keep track of the coins they have or are missing for a variety of U.S. coin sets. Many of the more recent U.S. coin sets are supported (see list below), and the app can be used to track quantities, grades, and notes for each coin. Supported U.S. coin sets include: - American Eagle Silver Dollars - American Innovation Dollars - American Women Quarters - Barber Dimes - Barber Half Dollars - Barber Quarters - Buffalo Nickels - Eisenhower Dollars - First Spouse Gold Coins - Franklin Half Dollars - Indian Head Cents - Jefferson Nickels - Kennedy Half-Dollars - Liberty Head Nickels - Lincoln Cents - Mercury Dimes - Morgan Dollars - National Park Quarters - Native American/Sacagawea Dollars - Peace Dollars - Presidential Dollars - Roosevelt Dimes - Standing Liberty Quarters - State Quarters including D.C. and Territories - Susan B. Anthony Dollars - Walking Liberty Half Dollars - Washington Quarters Find us on GitHub to report issue, request features, and to follow progress! This App is not endorsed by the United States Mint United States coin images from the United States Mint. Quarter-dollar coin images from the United States Mint. Mercury Dime images, Buffalo Nickel reverse image, and Peace Dollar images courtesy of CCF Numismatics. Indian Head Cent images, Walking Liberty Half Dollar images, Morgan Dollar images, Buffalo Nickel obverse image, Liberty Head Nickel images, Barber Quarter images, and Barber Half Dollar images courtesy of Brandon Grossardt. Standing Liberty Quarter images and Franklin Half Dollar images courtesy of John Baumgart.
F-DroidGitHub
CoinTrend: Private Crypto Tracker
APK
Lightweight, fast and private cryptocurrencies monitor. No ads, no subscriptions, just coins. Features • Market: real-time updates of the Trending Coins (the most searched coins in the last 24h) and the Top Coins (the top 250 cryptocurrencies by market cap). • Favourites: track your favourite coins at a glance by adding them to the favourite list and sorting them as you wish. • Search: search over 10.000 coins by name or symbol. • Settings: choose the tracking configuration you need. 10.000+ real-time cryptocurrencies CoinTrend is powered by the public CoinGecko API (https://www.coingecko.com/en/api) to track over 10.000 cryptocurrencies like Bitcoin (BTC), Ethereum (ETH), Bitcoin Cash (BCH), Ethereum Classic (ETC), Binance Coin (BNB), Crypto.com Cronos (CRO), Cardano (ADA), Solana (SOL), Monero (XRM) and many more! Clear and detailed market data Price, Percentage Gain, Trend Chart, MarketCap, Trading Volume 24h, Highest Price 24h, Lowest Price 24h, Available Supply, Total Supply, All-Time High Price (ATH), All-Time Low Price (ATL). Lightweight CoinTrend stores coins' data locally and updates them automatically only when needed, thus minimising mobile data usage and battery consumption. You can still manually trigger a data update whenever you need it by simply swiping down on each screen! 100% free and open-source Don't trust, verify! CoinTrend is 100% free and it does not include any ads nor trackers. Its code is publicly available at https://github.com/CoinTrend. Check it out yourself and don't hesitate to reach out if you have any suggestions! Designed for Android The User Interface has been designed following the latest Google's Material Design guidelines and using only native Android components and animations.
F-DroidGitHub
CoinVert
APK
CoinVert is a clean, full-featured currency converter designed to support over 200 currencies including cryptocurrencies. With a sleek interface and real-time rate updates, it’s built to be fast, ad-free, and fully transparent about your data. Key Features: • Real-time exchange rate updates • Support for 200+ global currencies and crypto • Offline mode with cached rates • No ads, no tracking, no nonsense • Modern and convenient UI Privacy Policy: CoinVert does not collect, track, or store any personal data. All conversion and rate lookup operations are performed without logging user behavior. We do not use analytics, ads, or tracking libraries. Your data stays on your device, where it belongs. License: CoinVert is licensed under the GNU General Public License v3.0 (GPL-3.0). This means you may freely use, modify, and redistribute the app as long as all derived works also remain under the same license. ✔️ Free and open-source ✔️ No ads or tracking ✔️ Commercial use allowed ❗ Modifications must remain GPL-3.0 Questions or feedback? Reach out to: support@rabbittownsoftware.com
F-DroidGitHub
Colemak Mod-DH Keyboard
APK
This tiny app allows you to connect a physical keyboard to your device's USB socket, and then type using one of the Colemak Mod-DH layout mappings. Supported layouts: Mod-DH ANSI US Mod-DH ANSI US wide Mod-DH ISO US Mod-DH ISO US wide Mod-DH ISO UK Mod-DH ISO UK wide Vanilla Colemak Vanilla Colemak wide Note: - This app is for physically connected keyboards only - it does NOT change the on-screen software keyboard.
F-DroidGitHub
Colony Control
APK
Please note: This app is currently only available in Spanish. Colony Control Android application for managing and monitoring ant colonies, using technologies such as NFC and QR codes for identification, feeding/care reminders, and environmental data recording. Description This application is designed to help ant enthusiasts and caretakers keep detailed records of their colonies. It allows you to: • Register colonies with information such as species, date, brood stage (eggs, larvae, pupae, workers), and whether they are diseased. • Associate unique identifiers with each colony using NFC tags or QR codes. • Scan NFC tags or QR codes to quickly access colony information. • Record feeding events and add observation notes. • Add photos to each colony's gallery. • Schedule reminders (one-time, daily, or every X days) to check on or feed the colonies. • Record nests found in the field, including their GPS location (optionally disabled with "Ninja Mode"). • Obtain weather data (temperature, description) using the OpenWeatherMap API based on location (if enabled). • Manage a to-do list. • Export and import data backups.
F-Droid
Color Namer
APK
Ever wondered what the name for that colour is? Or wanted the code for a colour that could be described as 'dusty'? Identify colours via the camera and the xkcd survey and share them. Set colours to wallpaper.
F-DroidGitHub
ColorBlendr
APK
ColorBlendr is an application to modify Material You colors of your device. Elevate your creativity with effortless material customization. Instantly tweak colors for a personalized touch in just a few taps. Features: - Accent saturation changer - Background saturation changer - Background lightness changer - Pitch black theme in dark mode - Manual color overriding - and many more... Requirements: - Android 12+ device - Working Root or Shizuku environment Instructions: - Install and open the app - Allow permissions for the app - Select root or shizuku mode - That's it. Now you are good to go! Translation: Assist in translating ColorBlendr into your preferred language through our Crowdin platform. Your contribution will help make ColorBlendr accessible to a wider audience. Alarming permissions: - QUERY_ALL_PACKAGES: Required for individually theming 3rd party apps which has monet theming support but still does not follow system colors. - MANAGE_EXTERNAL_STORAGE: Required for grabbing the current wallpaper and extract dominant colors from the wallpaper.
F-DroidGitHubIzzyOnDroid
CommandClick
APK
CommandClick is "Linux browser".This is "both" end browser from backend + frontend.CommandClick provide you with new browser world.[About]Existing web browsers mainly has tab feature. But CommandClick'core is history search. Therefore, you easly restore, load, and check my history.Existing web browsers support normal javascript. But CommandClick enforce javascript, and interact with not only web but also ubuntu and android os. Therefore, this has wide spread usageExisting web browsers cannot have built-in ubuntu. But CommandClick can have ubuntu natively . You can take advantage of the ubuntu's big wealth of assets.Existing android terminal app cannnot support two click execution. But cmdTerminal can support two click execution.Existing web browsers cannot create original android application. But CommandClick can create application just for you as low code tool.[How to use]See the following page. https://github.com/puutaro/CommandClick/blob/master/USAGE.md[Source]GitHub https://github.com/puutaro/CommandClick[Issue]GitHub Issue https://github.com/puutaro/CommandClick/issuesPlease post here if you have bug reports, Future requests, or other information.
GitHubIzzyOnDroid
Compete
APK
Compete is a fun-to-use app which helps creating challenges, invite friends, and compete against the public or in private. Higher, further, faster (and of course also lower, less, slower), or just anything that is measurable – create multiple disciplines, input your accomplishments and view automatically created rankings. ⚠️ Compete is a place where people can improve themselves in a positive way while having a lot of fun. Therefore, do not create or participate in challenges that violate applicable laws or general ethics, or have other unhealthy goals. * Create challenges with several disciplines * Your disciplines can be anything – let it be in the area of Sports, Health, Fun, Mindful, or Creative things * Set a start date and how long the participants have time to accomplish the disciplines * Invite friends or let the challenge be public (everybody on the same server can join) * Get reminded on each discipline start to accomplish the current discipline * People can look up other acomplishments from their challenges: videos, pictures, text, etc * React to or comment on acomplishments * Rankings are automatically updated after the discipline due date has expired * Supports push notifications via UnifiedPush or ntfy * Self-host the app server (configure for public, private, or user-invite access) Have fun!
F-DroidIzzyOnDroid
Conceal Mobile
APK
Conceal Mobile is the official mobile wallet for the Conceal Network blockchain, providing a secure and private way to manage your CCX cryptocurrency. FEATURES: • Create and manage Conceal wallet with industry-standard encryption • Send and receive CCX transactions with real-time network confirmation • QR code scanning for quick and easy import • Secure wallet encryption with military-grade algorithms • Complete transaction history with detailed information • Real-time network status monitoring and synchronization • Privacy-focused design that respects your anonymity • Encrypted messaging system for secure communications • Deposit and withdraw (Conceal Earn) in direct interaction with the blockchain • Multi-language support for global accessibility SECURITY & PRIVACY: - Secure key generation and storage - No personal data collection or tracking - Open source code that's auditable and transparent - Regular security updates and patches - Cold storage support for maximum security CONCEAL NETWORK: Conceal Network is a privacy-focused blockchain platform that provides secure, private, and decentralized financial services. Built on advanced cryptography, it ensures your transactions remain confidential while maintaining full transparency of the blockchain itself. WHY CHOOSE CONCEAL MOBILE: • Official wallet with direct network integration • User-friendly interface designed for both beginners and experts • Regular updates with new features and improvements • Active community support and development • Cross-platform compatibility • Lightweight and fast performance Download Conceal Mobile today and experience the future of private, decentralized finance. Join thousands of users who trust Conceal Network for their cryptocurrency needs. For support and updates, visit: https://conceal.network
F-DroidGitHub
Concurseiro
APK
Comapanion app for studying.
F-DroidGitHub
Connect You
APK
Connect You is a Contacts/SMS app built with Material Design 3 (You). It supports all the common features such as creating, modifying and deleting contacts as well as phone numbers, emails, addresses and events. Connect You uses the Android system's contacts API, thus all your contacts are in sync with your OS and usable in other apps as a dialer or messenger. Additionally, Connect You supports sending, receiving and deleting SMS messages and threads. MMS are not supported however.
F-DroidGitHub
Conscrypt Provider
APK
Conscrypt Provider is an APK which can provide the Conscrypt Library to apps that support older Android devices. The Conscrypt Library provides modern TLS capabilities and ciphers, including TLS 1.3, and supports all the way back to Android 2.3 Gingerbread! I have wrapped it in a standalone APK because not all users will need it (Android 10+ has TLS 1.3 enabled), and because the library is quite large. Users: will need to install this app. It does not appear in the app drawer as it has no interface. App Developers: will need to add code to their apps to make use of this provider. For instructions on how to do this, see the README: https://github.com/mendhak/Conscrypt-Provider --- I have made use of the F-Droid blog post and an associated gist. This may not be the best or perfect way to provide Conscrypt to applications, but it's a way that works for me. I'm putting it on F-Droid in case it benefits others too.
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Constellations
APK
Star charts and data of the 88 modern constellations, based on data by Wikipedia.
F-DroidGitHub
Contact Diary
APK
Contact Diary is a simple app that allows you to keep a record of the people you have met and the events you have attended to recently. In the undesired event that you test positive for COVID-19, Contact Diary is a place where to quickly find who you must warn about the situation. How it works Every day Contact Diary will prompt you to insert the events you have attended and the people you have been with during the day. Through some simple forms you will be able to store the essential information about your contacts, in case you need to retrieve it. Just that. Simple, right? ;) Features Configurable notification time, so the prompt does not interfere with your daily workflow. Show only potentially risky contacts. Automatic removal of entries older than 15 days. Export your latest contacts to a CSV file that you can share with the authorities. JUST ONE PERMISSION, that needed for the app being able to notify you after device restarts. Nothing else. In particular, NO INTERNET permission. The information entered is yours, and it never leaves your device. FAQ - Wait, isn't this what Governments' contact tracing apps are doing? No. The goals of Governments' contact tracing apps and of Contact Diary are inherently different. Governments' contact tracing apps notify you when you have been at risk, and Contact Diary serves to remember who you must notify if you test positive. - Is this app BETTER than Governments' contact tracing apps? No. Governments' contact tracing apps may account for contacts that you may not be aware of, like the person sitting in a neighboring table at a restaurant, or that other person using the same bus to go to work. Contact Diary IS NOT A REPLACEMENT TO GOVERNMENTS' CONTACT TRACING APPS. - Is this app WORSE than Governments' contact tracing apps? No. Government's contact tracing apps crucially rely on all persons interacting to have the app in order to do proper notifications. With Contact Diary, you just need yourself to keep track, and you can easily notify people (or places) that do not use conventional contact tracing apps. - Will this app share the information I input? NO. The app has no permissions, so there is no way that it can connect to the internet. The information you insert will never leave your device. Even more, entries in the diary are automatically eliminated when they become older than 15 days. Support If you find a bug, have an idea on how to improve Contact Diary or have a question, please visit the Contact Diary project page on GitHub: https://github.com/apozas/contactdiary
F-DroidGitHub
Contacts
APK
Contacts Organised by Group: • Select any Android account • Fast view by groups • Large Text • Launch Contacts App
F-DroidGitHub
Content Provider Helper
APK
This helper is a frontend to query installed content providers. Android's content providers are similar to database tables.: They have a name (aka "content:" uri), columns and they can be queried similar to SQL. Android uses content-providers as API to manage global accessable data (i.e. images, address book, text messages, ...). Forked from jenzz-s ContentProviderHelper which is not maintained anymore. App permissions are set generously to provide maximum compatibility.
F-DroidGitHub
C
Control D
Web
Customizable DNS service that blocks ads, trackers, and malware at the DNS level.
Converter NOW: Unit Converter
APK
Converter NOW is an effective unit and currencies converter ✔️ Simplify the tedious conversion process between units of measurement in a few clicks. 🚀 It is fast and immediate: just start typing and immediately you have the real-time conversion with all the other units of measurement. 🖌️ It is customizable: the units can be reorganized according to your priorities and your use. 🔢 It integrates a calculator that let you do the calculations in every page. 💰 Currency exchange rates updated daily 🎨 Dynamic theming based on your device settings ⚫⚪ Choose your favorite theme: dark and white theme 📱🖥️ Multiplatform: available for Android, Web, Linux and Windows 💯 It is free, no ads, no data collection, no permissions (just Internet to update currency conversions) and first of all it is open source! Converter NOW can convert 200+ units of measurement and 30+ currencies 🎉🎉 Here are some of the physical quantity that Converter NOW is able to convert: -Currencies: Dollars, Euro, Pound, Rupee, Yen, etc -Length: meters, inches, miles, yards, light years, etc. -Area: square meters, hectares, acres, etc. -Volume: cubic meters, liters, gallons, pints, spoons, etc. -Time: seconds, hours, days, years, weeks, millennia, etc. -Temperature: Centigrade, Fahrenheit, Kelvin -Speed: meters per second, kilometers per hour, knots, etc. -Mass: grams, pounds, tons, atomic mass units, etc. -Force: Newton, dyne, pound-force, poundal, etc -Pressure: pascal, bar, atmosphere, psi, etc. -Energy: Joule, calories, kilowatt hours, etc. -Power: Watt, kilowatt, horsepower, etc. -Density:: grams per cubic meter, etc. -Fuel consumption: Miles per Gallon, Kilometers per liter, etc. -Numeral systems: decimal, binary, hexadecimal etc. -Torque: Newton meter, pound-force foot, poundal meter, etc. -Digital data: Nibble, bit, byte, kibibit, kibibyte, etc. -Shoes size: UK, India, Europe, USA, Japan, etc. -Angles: degree, radians, minutes, etc. -SI prefix: kilo, mega, giga, tera, milli, micro, nano, etc.
F-DroidGitHub
Convertly
APK
Convertly is a fast and minimal unit converter built with simplicity and privacy in mind. It supports a wide range of categories including length, weight, temperature, volume, speed, and more — all wrapped in a clean, distraction-free interface. Designed to be lightweight, responsive, and entirely offline, Convertly gets out of your way and lets you convert units quickly, without ads, trackers, or unnecessary clutter. Whether you're a student, traveler, or just someone who hates bloated apps, Convertly is made for you. Key Features: • Clean, ad-free interface • Real-time conversion updates • Supports metric and imperial units • 100% offline — no data collected • Lightweight and responsive design Privacy Policy: Convertly does not collect, store, or transmit any user data. All conversions happen locally on your device. There are no analytics, tracking, or advertising libraries included. Your usage stays completely private. License: Convertly is released under the GNU General Public License v3.0 (GPL-3.0). This means you are free to use, modify, and distribute the app — as long as any changes remain under the same license. ✔️ Free and open-source ✔️ No ads or tracking ✔️ Commercial use allowed ❗ Modifications must remain GPL-3.0 Questions or feedback? Reach out to: support@rabbittownsoftware.com
F-DroidGitHub
Cooky
APK
Discover Cooky, your new free and open-source culinary companion that respects your privacy! Enjoy a minimalist and elegant interface. Easily import recipes from the web or create them manually. Experience an intuitive process to create your recipes. Save an unlimited number of recipes and view them offline. Organize your recipes using categories and tags, and easily find them with the integrated search engine. Scroll through the steps with a simple swipe while you cook. Track your ingredient purchases with the integrated shopping list. You can support me by adding a star on my github and/or donate.
F-DroidGitHub
Copy SMS Code - OTP Helper
APK
An open-source application that allows you to copy OTP and codes from SMS and notifications automatically by reading all of your notifications. The application works completely offline and without internet permission. So you can be rest assured that your data does not leave your device. If you have any problems or suggestions, submit them in our GitHub repository: https://github.com/jd1378/otphelper/issues
F-DroidGitHub