Productivity

1843 open source Productivity apps

Fcitx5 (That Plugin)
APK
Thai input method for Fcitx5
F-DroidGitHub
Fcitx5 (Unikey Plugin)
APK
Unikey (Vietnamese input method) engine support for Fcitx5
F-DroidGitHub
Feeel - home workouts
APK
Feeel is an open-source app for doing simple at-home exercises. It holds the acclaimed full body scientific 7-minute workout regime and allows creating custom workouts as well. While the app currently contains a limited amount of exercises, the plan is to drastically expand the number of both exercises and workouts with the help of the community. Contribute at https://gitlab.com/enjoyingfoss/feeel/wikis Donate at https://liberapay.com/Feeel/ . Donations will let me work on the app regularly, rather than just in my free time.
F-Droid
FeelsApp
APK
FeelsApp is a diary and emotions logging app. It lets you create simple notes and associate them with emotions. The notes offers full encryption with SQLite database. The app was designed for quick usability. The notes are sorted based on date. The app not only lets you create notes, but also is capable of showing statistics of these notes. *Encryption *Ability to see statistics of the notes *Ability to Encrypt the notes with or without a password *Colour coding for different emotions and feelings *Ability to rate your emotions from 2 to 10
F-DroidGitHub
Fertility Test Analyzer App: Ovulation & Pregnancy
APK
Fertility Test Analyzer is the best fertility app to help you interpret both pregnancy and ovulation test strips by giving you the % of pigmentation. It provides you with fertility charts based on your hormone levels so you can pinpoint your fertile window and track your early pregnancy days. Fertility Test Analyzer helps you get pregnant, especially if you have PCOS or irregular periods when ordinary ovulation calendars and trackers are not so helpful. It also makes you save money! Now you can buy cheap test strips in bulk knowing that you will be confident about the results once and for all! Fertility Test Analyzer reads pregnancy and ovulation test strips, interprets their results and shows them in an easy and understandable way. Be reassured when reading the pigmentation level of an ovulation test or seeing a very faint line on a pregnancy test. Find out that you are pregnant before a missed period using the most sensitive tests in combination with our app. Join other pregnancy success stories! Using our unique computer vision algorithm, Fertility Test Analyzer recognizes the pigmentation trace present in the test pad and gives you your long awaited answer. KEY HIGHLIGHTS ✔ Read pregnancy and ovulation test strips without any doubts. ✔ Detect ovulation based on your hormone levels. ✔ Predict your fertile window. ✔ Improve your chances of pregnancy by better timing intercourse. ✔ Check on your pregnancy initial days following your hCG evolution with its fertility charts. ✔ Access your data offline and review it when Internet access is not available. ✔ Keep pictures of your tests safely saved in your mobile phone. IMPORTANT LIMITATIONS Fertility Test Analyzer transforms qualitative data,given by the pregnancy and ovulation test strips, into quantitative data (% pigmentation). The accuracy of the numeric value is affected by a number of factors, such as: test quality, how diluted the urine is, the quality of the camera used, your skills in taking a good picture and a correct lighting. Hence, numeric results obtained cannot be taken as exact values, only a laboratory can give those. Use at your own risk. Do not use to avoid pregnancy or anything where more accuracy would be required. Please consult your healthcare provider for any health concern. AUTHORS' NOTE The time has come to say goodbye. Over the last years we created and give support to Fertility Test Analyzer in our spare time as part of a non-profit project. Our intention was to help women to reach their dream of become mothers, and we are happy to see that it has over 70k installations at the time. Sadly we have to admit that we don't have the resources to keep up on new devices and therefore we have taken the decision of release the app to the public domain under a commercial free license. We expect other fertility apps to use this technology in the near future and we think that this is the best way we have to contribute to the well being of women with fertility difficulties. Unfortunately we won't be giving support or maintenance to the app anymore. If you are an Android developer with some free time and want to contribute (there are a couple of things with priority if you have a modern device), the source code is on https://gitlab.com/colnix/fta. Please make a pull request or create a brand new app of your own! The only legal requirement is that you have to use it for good, not for evil :) Thank you for join us throughout this project and we hope to see you soon in another adventure. María and Pablo
F-Droid
Fiddle Assistant
APK
Music tuner with a logging feature that help to check if the user play in tune.
F-DroidGitHub
File Navigator
APK
Welcome to File Navigator - Your Ultimate File Sorting Solution! Are you tired of cluttered files on your device? Seeking a streamlined way to organize and manage them? Look no further! File Navigator is here to transform your file management experience. Key Features: 🔍 File Type Customization: File Navigator puts you in control. Select the specific file types you want to navigate, including Images, Videos, Audio, Text, APKs, PDFs, and Archives. 📁 Effortless File Organization: Configure the app to match your preferences. File Navigator allows you to define where different file types should be stored, ensuring they end up in the right place every time. 📬 Instant Notifications: When new files of your chosen file types are detected in your system, File Navigator sends you instant notifications. No more surprises - you'll always be up-to-date. 🚀 Seamless File Movement: With a simple tap from the notification, you can select the destination folder for the new file. No more manual searching and sorting. 🛡️ Precise Permissions: To deliver these exceptional features, File Navigator requests the 'access to manage all files' permission. Rest assured, this permission is solely used to move files you explicitly command to be moved. 📱 Simplify Your Digital Life: File Navigator is the ultimate solution to keep your files organized and readily accessible. Enjoy a clutter-free device and manage your files with ease. Don't let file chaos overwhelm you. Say goodbye to clutter and embrace the power of precise file management!
F-DroidGitHubIzzyOnDroid
File85Toolkit
APK
File85Toolkit is an Android utility app designed for efficient file management through compression and decompression. ✨ Features: - Compress files using LZMA, then encode them with Base85 for compact storage and sharing. - Decompress files by Base85 decoding and then extracting with LZMA. - Modern UI with Material 3 and Jetpack Compose support. - Fully open source, privacy-friendly, no ads. File85Toolkit helps you save space and move files with ease, all directly on your Android device.
F-DroidGitHub
FileFlow
APK
FileFlow scans your files periodically and organizes them according to your rules.Features:Rules: Use regex to precisely target files and template strings to rename them.History: Recent executions are stored (locally).Private: Fully offline; your data never leaves your device.Lightweight: Runs in the background with minimal battery and memory usage.
F-DroidGitHubIzzyOnDroid
FileManagerSphere
APK
The FileManagerSphere is a powerful file management tool designed to simplify and enhance your experience when dealing with documents, media, and other file types. With advanced features and an intuitive interface, FileManagerSphere provides a comprehensive solution for organizing, navigating, searching, and manipulating your files with ease. Features - Open source: Lightweight, clean, and secure. - Material Design: Follows the Material Design guidelines, with attention to details. - File support: View, extract, and create common compressed files. - Themes: Customizable user interface colors, plus optional true black night mode. - Elegant widgets that automatically adapt to your size - Well-implemented: Built upon the right things, including Java NIO File API and LiveData.
F-DroidGitHub
FileManagerUtils
APK
FileManagerUtils add a lot of features to the android default file manager:SFTP ClientApk extractor (not compatible with android 11)Root file explorer (you need a rooted device)Create file shortcuts (from android 8.0)
GitHubIzzyOnDroid
FillUp
APK
When you buy fuel, just enter the amount you purchased and your current odometer value; FillUp will calculate your mileage and maintain a log of your fill-ups. * Manages data for one or more vehicles. * Calculates and plots average gas mileage. * Calculates and plots monthly totals for gas purchased and distance driven. * Stores all data on the device – doesn't use your data plan. * Can import/export your data to CSV files on your sdcard. * Share the CSV files with other Apps for cloud backup! * Selectable units of measurement – can calculate: * miles per gallon (MPG) * kilometers per liter (KM/L) * liters per 100 kilometers (L/100KM) * miles per imperial gallon (UK MPG) – from miles and liters. * miles per imperial gallon (UK MPG) – from kilometers and liters.
F-DroidGitHub
Finalbenchmark 2 - CPU Test
APK
Finalbenchmark 2 is a comprehensive CPU benchmarking tool. Key Features: • Multi-threaded CPU stress testing with real-time monitoring • Single-core and multi-core performance benchmarks • Temperature tracking during intensive tests
F-DroidGitHub
Finance Manager (PFA)
APK
The privacy friendly Finance Manager helps you keep track of your income and expenses. The app offers the following features: - New transactions You can create new expenses by clicking on the Plus-Button in the bottom right corner in the main view. Now you can enter the amount, a title, a date and a category. Furthermore, you can specify if the transaction is an expense or income. - Transaction overview In the main view you are able to see the total balance of your transactions, as well as a list with all transactions you entered. By long-clicking on the entry you can either edit or delete the transaction. - Categories Under the menu item “Categories” you can see all the categories you created and their total balances, depending on the transactions that are labelled with the respective category. By clicking on the Plus-Button in the bottom right corner you can create new Categories. By long-clicking on the entry you can either edit or delete the category. - Backups You can create a backup of your privacy-friendly-finance-manager database and restore it later with privacy-friendly-backup. You can reach 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
F-DroidGitHub
Fire Brigade Competition Radio Trainer (HFLÜ Hesse
APK
**Competition Radio Trainer** supports firefighters in preparing for the **Hessische Feuerwehrleistungsübung (HFLÜ)**. It helps practice **radio messages/radio conversations and commands** that appear in the HFLÜ scenarios. **Typical items you can practice (examples from HFLÜ communications)** - **Ausrückemeldung** (response message) - **Eintreffmeldung** (arrival message) - **1st and 2nd Lagemeldung** (situation reports) - Radio calls around **fire fighting radio conversations** **Who is it for?** - HFLÜ competition teams in Hessen **Why this app?** - Faster practice compared to paper checklists - Repeatable drills (solo or team) **Disclaimer** - **Unofficial training tool** for HFLÜ preparation (not an official app from the Hessische Landesfeuerwehrschule). **Misc** - Regular updates of HFLÜ scenarios - Works without an account - Offline use (no internet required for training) - No ads / no tracking
F-Droid
FireFiles
APK
Note: this project seems to be abandoned. No activity since 2018, so updates are disabled. FireFiles is based on AnExplorer. It is a light-weight but powerful file manager for everything that runs on Android OS (Android TV, Android Watch, Mobile, etc) – an all-in-one file management tool. It is Simple, Small, Fast and Efficient File Explorer and is definitely going to hit the mark of being One of the Best File Manager apps on the App Stores. The only file manager to support RTL and show size of folders across the storages. File Manager is designed for all android devices including Phones, Phablets, Tablets and Android TV. It’s a fully designed with Material guidelines by Google. It supports all Android versions from Jellybean, Kitkat, Marshmallow, Nougat down to the new Android O. We don’t take any unnecessary permissions.
GitHubIzzyOnDroid
F
Firefly III Mobile
APK
Unofficial mobile client for Firefly III, a personal finances manager.
F-DroidGitHub
Firefly III Shortcuts
APK
A modern Android application that simplifies daily financial transactions with Firefly III, the popular open-source personal finance manager. - Quick Transaction Shortcuts: Create and use shortcuts for your common financial transactions - Quick Run Widget: All the shortcuts can be run from your home screen via the widget; no need to even open the application. - Clean UI: Modern Material 3 design with intuitive navigation - Secure: Your financial data stays on your device with secure API token storage, obtained by OAuth2 - Fast Synchronization: Efficient data syncing with Firefly III server
F-Droid
FitBook
APK
Easily track your eating habits Never suffer another ad while logging your foods. FitBook is completely Free and Open Source. Have confidence we won't be marketing to you or sharing your data with third parties. Everything is stored locally - that means internet connectivity is optional. If you notice any bugs feel free to open a ticket at https://github.com/brandonp2412/FitBook
F-DroidGitHub
Fitness Calendar
APK
## Features - Track activities of all kinds - Activity recording - Gpx import - Create custom activity types - Statistics - Basic diary functionality
F-DroidGitHub
FitoTrack
APK
FitoTrack is a mobile app for logging and viewing your workouts. Whether you’re running, cycling or hiking, FitoTrack will show you the most important information, with detailed charts and statistics. It is open-source and completely ad-free. Features: * Track workouts. Choose the type of sport you would like to track and just start running, cycling or hiking, for example. You can see the general information right below the map on the tracking screen. * View your workouts. View general information such as date, time, duration, distance, speed and pace. See your route on a map. Work out your level of performance from the speed diagram. * Open-Source. There is neither advertisement nor tracking, and the source code is open and licensed under the GPLv3.
F-Droid
FixupXer - URL Enhancer
APK
FixupXer removes tracking parameters from URLs to protect your privacy and make links cleaner. When you share links from social media, shopping sites, or other platforms, they often contain hidden tracking codes that follow you around the internet. FixupXer strips these away. == Key Features == • Browser Mode: Set FixupXer as your default browser for automatic system-wide URL cleaning • Privacy Protection: Removes 1000+ tracking parameters from all major platforms • Fast Processing: Cleans any URL in under 0.1 seconds with advanced caching • Offline Operation: Works completely offline - your URLs never leave your device • Platform Support: Works with 25+ platforms including YouTube, Facebook, Amazon, Twitter/X, Instagram, TikTok, Google Search, LinkedIn, Reddit, and more • Smart Conversions: Optional conversion to privacy-friendly alternatives (fixupx.com for Twitter, kkinstagram.com for Instagram) • History Tracking: Keep track of cleaned URLs with optional history feature • Configurable Actions: Choose what happens after cleaning - open in app, browser, share, or copy to clipboard == Browser Mode Setup == 1. Enable Browser Mode in Settings 2. Set FixupXer as your default browser in Android Settings 3. Configure your preferred post-clean actions 4. All web links will now be automatically cleaned before opening == Privacy & Security == • Zero permissions required - no internet, location, or personal data access • 100% open source and auditable • No data collection or transmission • Works entirely on your device == Technical Excellence == • Modular architecture with 11 specialized URL cleaners • Thread-safe design optimized for modern Android devices • Material Design 3 interface with full Android 15 compliance • Comprehensive test suite with 212 tests ensuring reliability Perfect for privacy-conscious users who want cleaner, safer links without the tracking.
F-DroidGitHubIzzyOnDroid
Flash Deck
APK
A simple and easy to use flash card to help you study Easily add deck and cards Add notification timer to periodically asking you question Support dark mode and light mode Easily export & share your decks to your friends Record voices and attach images for the cards Create shortcut to show random card from deck for casual study (Android 8 and above) Flash bot to smartly suggest list of card to test you
F-DroidGitHub
F
FlashCards
APK
FlashCards is a simple flash card app with csv files as input. It is meant for stuff like learning vocabulary of different languages.
F-DroidGitHub