Productivity

1998 open source Productivity apps

Elder Launcher
APK
Elder Launcher is an app which makes using an Android device easy for the elderly or first-time smartphone users. It allows quickly accessing favourite apps and contacts.Elder Launcher is a launcher designed for seniors focused on simplicity and legibility. It supports pinning favorite apps and contacts to the homescreen for quick access. You can easily phone call your favorite contacts from the homescreen.The edit menu is useful for managing the home screen. It can be opened by clicking the pencil icon on the top right.You can add/remove favourite apps or contacts.You can also rearrange selected favourites.Lastly, in case a newly installed app isn‘t immediately visible then use the Reload option.Elder Launcher’s clear layout with big icons and text, makes using phones very easy for everyone. If your phone has Android 10, then you can turn on Dark Mode in your settings app to make Elder Launcher dark with a black background.
GitHubIzzyOnDroid
Electrum Bitcoin Wallet
APK
Electrum is a libre self-custodial Bitcoin wallet with support of the Lightning Network. It's secure, feature rich and trusted by the Bitcoin community since 2011. Features: Safe: Your private keys are encrypted and never leave your device. Forgiving: Your wallet can be recovered from a secret phrase. Instant On: Electrum uses servers that index the Bitcoin blockchain making it fast. No Lock-In: You can export your private keys and use them in other Bitcoin clients. No Downtimes: Electrum servers are decentralized and redundant. Your wallet is never down. Proof Checking: Electrum Wallet verifies all the transactions in your history using SPV. Cold Storage: Keep your private keys offline and go online with a watching-only wallet. Support: Official Website has a detailed documentation and FAQ Source code on GitHub Support: Please use GitHub or email electrumdev@gmail.com to report bugs rather than the app rating system. Please translate on Crowdin
DirectF-DroidGitHub
EnRecipes
APK
EnRecipes is an open source, privacy-friendly digital cookbook that lets you create, manage and share your recipes. Features: - Create recipes quickly - Add photo, combinations and notes to your recipes - Organise your recipes by cuisine, category and tags - Add recipes to your Try Later list and mark them as favorites - Quickly search for recipes by title or ingredient - Scale your recipe ingredients to serve more or less people - Get notified of the last time you tried a recipe - Share your recipe to anyone by any means as a nicely formatted message. You can share the recipe photo too. - Shake your device to view a random recipe - Create meal plans - Set cooking timers - You can Import or Export your data - Has Light, Dark and Black themes Highlights: - 100% free and open-source - Private by Design - No special permissions required - No annoying ads or pop-ups Credits: This app was written in my free time using NativeScript-Vue. I would like to thank all those people who helped me understand the concepts during the process and my special thanks to the NativeScript team and the community. I also would like to thank the members of the Telegram EnRecipes group for contributing their ideas for this project.
F-DroidGitHubIzzyOnDroid
Encointer Wallet
APK
The Encointer wallet is your tool to participate in local communitiy currencies, to perform Encointer key-signing ceremonies and receive your universal basic income. The wallet keeps custody of your accounts' private keys and allows you to transfer funds to other users. send and receive encointer local currencies register for ceremonies perform ceremony meetups Please try our tutorials: Encointer Book
F-DroidGitHub
End of Updates Checker
APK
Based on your phones model you can check until it receives security updates. After this date its recommended to not use it online, so better check out alternatives early.
F-DroidGitHub
Energize
APK
Track your meals including calories, macro- and micronutrients Use several databases (Open Food Facts, USDA, and Swiss Food Composition Database) or create custom food Search meals by product name or just scan the barcode Get meal suggestions based on your last tracked meals Set targets for macro- and micronutrients including calculating them based on your personal details See your daily nutrition details Create and restore encrypted backups (Local or WebDAV)
F-DroidIzzyOnDroid
EnforceDoze
APK
**EnforceDoze** allows you to forcefully enable Doze right after you turn off your screen, and on top of that, it also disables motion sensors so Doze stays active even if your device is not stationary while screen off. Doze will only deactivate periodically to execute maintenance jobs (like getting notifications, etc), otherwise it will remain active as long as your screen is off. This brings a lot more battery savings than standard Doze functionality, because even with screen off and Doze enabled, Doze is still periodically checking for movement, and disabling motion sensing improves battery life further. **Features** * Force Doze mode immediately after screen off or after a user specified delay * Add/remove apps or packages directly to system Doze whitelist * Disable motion sensors to prevent Doze from kicking in during movement * Tasker support to turn on/off EnforceDoze and modify other features * Disable WiFi and mobile data completely during Doze * Ignore disabling Wifi/Data if music is playing * Ignore disabling Wifi/Data if hotspot is enabled * Enable Doze mode on devices where OEM has disabled it * No root mode so you can enjoy the core benefits without rooting your device
F-DroidGitHubIzzyOnDroid
Engine
APK
Engine is a software that allows you to use your phone as a virtual joystick, allowing you to play racing games like Assetto Corsa and Euro Truck Simulator 2 more comfortably without a steering wheel.Features:Mapping available data to virtual joystick dataDesigned using Material 3 guidelinesThe Screens and UI elements are built entirely using Jetpack ComposeEasy-to-use widget editorSeveral different presets can be set for widgetsLight and dark color themes supportedAbility to map the phone's volume keys as buttons to the game (e.g. you can manipulate the volume keys to upshift and downshift your car)Language support for Chinese & English
GitHubIzzyOnDroid
EngineDataLogger-Dashboard
APK
EngineDataLogger-Dashboard is a companion to EngineDataLogger, a project to produce a DIY ECU. This app connects to the main ECU to provide a dashboard interface.
F-DroidGitHub
EnglishWhiz
APK
EnglishWhiz is an offline dictionary app that features fast word look-up.With over 177k words available in its offline database built with simple & minimal user interface in mind. The data used in this project was made available by this awesome open-source repository (sad to see was abandoned). EnglishWhiz offers some features which include:BookmarkText-to-speechSearch historyWord suggestions, etc.
GitHubIzzyOnDroid
Entropy's Defiance
APK
Entropy's Defiance is a minimalist Android launcher and task manager built around five time horizons: Today, This Week, This Month, This Year and This Life. Tasks are stored in plain JSON, so they sync cleanly with Syncthing or any folder-sync tool, and a small terminal UI is available for editing the same file from a Linux laptop. Features * Time-horizon task list — peek at the next horizon, swipe a task left or right to move it across horizons * Minimalist home screen with a focused task view * App drawer with frequency-ranked apps and instant text search * Calendar widget with free-time calculation across selected calendars * Zen Mode for distraction-free focus on a single task * Optional double-tap to launch the dialer * Accent colour — follow your system's Material You palette, pick a preset, or set a custom colour * Left-handed mode — mirror the controls to the left * Plain-JSON storage that syncs over Syncthing * Guided intro to the five-horizon philosophy — replayable from Settings → Introduction Permissions * Query all packages — needed to list installed apps in the drawer * Read calendar — only used for the calendar widget; you can deny it * Set wallpaper — used by the launcher to restore your wallpaper * Bind device admin — only requested if you opt in to Zen Mode's Do Not Disturb integration The app is offline-first and contains no trackers, no analytics, and no ads. Source code is published under the Mozilla Public License 2.0 at https://gitlab.com/hwanderer/entropysdefiance. If you'd like to support development: https://buymeacoffee.com/hwanderer
F-Droid
EphemeralWorkProfile
APK
This app creates a temporary work profile. It will be reset when the screen is turned off or when you reboot your phone.
F-DroidGitHub
Epistolaire
APK
Epistolaire dumps SMSes AND MMSes AND their photos to a JSON file on the phone storage (so you can copy it whatever way you like, rsync, Syncthing, ownCloud - you name it). There's a tool to convert it to pretty HTML pages if you want to without effort. And if you know a little know a tiny bit of development, the JSON format is straightforward to use.
F-Droid
Epoch
APK
Epoch displays the current moment across a wide range of time systems — updating every second, all in one place. WHAT EPOCH SHOWS YOU - Civil: date, time, day second, day percent — for any timezone worldwide - Technical: Unix time, International Atomic Time (TAI), GPS time - Astronomical: Greenwich Mean Sidereal Time, Julian Date, Modified Julian Date - Curiosities: Swatch Internet Time, three binary clock variants, Doomsday Clock CONFIGURABLE Build your own display with Watchlist tabs — combine any values from any category, in any order. Set custom labels, reorder by drag-and-drop, swipe to remove. DESIGNED FOR NIGHT USE Night mode displays red text on black — preserving your eyes' dark adaptation for stargazing. PRIVACY FIRST No ads. No notifications. No tracking. No analytics. No network requests. All settings stored locally on your device. No permissions required. Available in English and German.
F-DroidGitHub
Equate
APK
Unit converting calculator featuring: * clean and fast unit conversions * more than 10 different unit types, including real time currency * over 130 units to convert between * customizable unit buttons * semi-scientific calculator * order of operations * operation history, with recall * smart parenthesis
F-DroidGitHub
Escape Launcher
APK
Escape Launcher is a minimalist home screen launcher app with features to help with phone and social media distractions. Features: * Screen time tracking * Support for work apps (Android 15+) * Support for private space (Android 15+) * Colour themes * Fonts * Weather * Search * Widgets * Double tap to lock * Hide apps * Countdown before opening apps you choose * You can disable the screen time dashboard * Customisable alignments, positioning of items * Fuzzy find in search
F-DroidGitHub
EstudiaTAI
APK
EstudiaTAI is an app for practicing multiple-choice tests for the Spanish AGE IT Assistant exams. It contains quizzes organized by topic and difficulty. The content of the app (questions, answers and explanations) is written in Spanish only, as it is specifically designed for candidates preparing Spanish public administration exams.
F-DroidGitHub
EtchDroid ISO to USB Writer
APK
EtchDroid is an open-source application that helps you write images to USB drives. Use it to make a bootable operating system USB drive when your laptop is dead. ⭐️ Supported devices ⭐️ ✅ USB flash drives ✅ USB SD card adapters ❌ USB hard drives / SSDs ❌ USB docks and hubs ❌ Internal SD card slot ❌ Optical or floppy disk drives ❌ Thunderbolt-only devices ⭐️ Supported disk image types ⭐️ ✅ Modern GNU/Linux operating system images, including Arch Linux, Ubuntu, Debian, Fedora, pop!_OS, Linux Mint, FreeBSD, BlissOS and many more ✅ Raspberry PI SD card images (but you must unzip them first!) ❌ Official Microsoft Windows ISOs ⚠️ Community-built Windows images, made for EtchDroid (be careful: they may contain viruses!) ❌ Apple DMG disk images ❌ Older GNU/Linux OS images < 2010 such as Damn Small Linux Source code is on GitHub: https://github.com/EtchDroid/EtchDroid
F-DroidGitHub
EteSync - Secure Data Sync
APK
Secure, end-to-end encrypted, and privacy respecting sync for your contacts, calendars, and tasks (using Tasks.org and OpenTasks). For notes, please use the EteSync Notes application. In order to use this application you need to have an account with EteSync (paid hosting), or run your own instance (free and open source). Check out https://www.etesync.com/ for more information. Easy to Use =========== EteSync is very easy to use. It seamlessly integrates with Android so you won't even notice you are using it. Security doesn't always have to come at a cost. Secure & Open ============ Thanks to zero-knowledge end-to-end encryption, not even we can see your data. Don't believe us? You shouldn't, just verify yourself, both the client and server are open source. Full History ========= A full history of your data is saved in an encrypted tamper-proof journal which means you can review, replay and revert any changes you have made at any point in time. How does it work? =============== EteSync integrates seamlessly with your existing apps. All you need to do is sign up (or run your own instance), install the app, and enter your password. After that, you will be able to save your contacts, calendar events and tasks to EteSync using your existing Android apps, and EteSync will transparently encrypt your data and update the change journal in the background. More security, same work-flow.
F-DroidGitHub
EteSync Notes - End-to-end Encrypted Notes
APK
Secure, end-to-end encrypted, and privacy respecting note taking app. For syncing your contacts, calendars and tasks, please use the EteSync Sync app. In order to use this application you need to have an account with EteSync (paid hosting), or run your own instance (free and open source). Check out https://www.etesync.com/ for more information. Easy to Use =========== EteSync is very easy to use. It's as simple as any of your non-encrypted note taking apps. Security doesn't always have to come at a cost. Secure & Open ============ Thanks to zero-knowledge end-to-end encryption, not even we can see your data. Don't believe us? You shouldn't, just verify yourself, both the client and server are open source. Full History ========= A full history of your data is saved in an encrypted change history which means you can review, replay and revert any changes you have made at any point in time.
F-DroidGitHub
Etherwake
APK
Wrapper around the etherwake command. It is used to start computers within the same network as the smartphone. Since this app sends pure ethernetframes it requires root privileges.
F-Droid
Everest
APK
Discover the rules by solving small puzzles. You will learn about new mathematical ideas. No mathematical knowledge is required beyond basic arithmetics.
F-DroidGitHub
Evergreen Wishlist
APK
Evergreen Wishlist allows you to lookup books on your Amazon Wish List at your local library. Well there is a catch or two. Your library needs to use the Evergreen ILS system for their catalog. The other catch is that at this time Evergreen Wishlist can only lookup the first (or most recent) fifteen books added to your list. The 15 book limit is due to how Amazon's site works, and that may change in the future. Software usually gets better over time right?
F-DroidGitHub
Everyday Tasks
APK
Track, log and schedule your Everyday Tasks Do you have the need of remembering what you did? Do you need to know about what to do next? Are you lost in your daily household tasks? Do you think your roommate does less than you? If so, track and log your tasks with EverydayTasks and create schedules for repetitive tasks. See how much time you have spent for certain tasks, and get notified if a scheduled task is due. Core features of the app - Log tasks you did easily and quickly. - Track your tasks to the minute. - See statistics of your done tasks, e.g. how much time you spent on what. - Create schedules for repetitive tasks with a custom interval and get notified when they are due. - Use dozens of predefined tasks and variants or create your own tasks. - Dark theme support. For more information see everydaytasks.jepfa.de If you like the app please star it on GitHub
F-DroidGitHub