Productivity
1843 open source Productivity apps
Smart EggTimer
APK
With Smart EggTimer you can cook eggs perfectly. The cooking time is calculated depending on - the desired consistency - the size of the egg - the start temperature - the air pressure or the geographic altitude Minimum permissions: - Smart EggTimer only requires authorization for GPS. This is needed to get the altitude which is used for calculation. No data is sent over the Internet.
F-DroidGitHub
Smart Gadget
APK
The Sensirion Smart Gadget app allows you to establish a BLE (Bluetooth Low Energy) connection to your Sensirion Smart Gadget. The app displays the current temperature and relative humidity values measured by the integrated sensors. Up to seven Smart Gadgets can be connected simultaneously. The Smart Gadget is open hardware and runs open source firmware. Smart Gadget Hardware Smart Gadget Firmware Gadget from DigiKey Smart Gadget from Mouser
F-DroidGitHub
Smart Remote Control
APK
Interface with the IR-LED built into Samsung devices, such as S4, Note 3. Supports most of popular protocols available nowadays, including: * NEC * Sony * RC5 * RC6 * DISH * Sharp * Panasonic * JVC
F-DroidGitHub
SmartMouse
APK
SmartMouse is an app that aims to make a smartphone usable as a normal computer mouse. It does estimate its position by processing data from the integrated accelerometer and gyroscope with a custom sensor-fusion algorithm. This data is then transmitted to a host computer over the Bluetooth HID Profile. The mouse buttons are recreated using the Touchscreen.
GitHubIzzyOnDroid
SmartPack-Kernel Manager
APK
SmartPack-Kernel Manager is a heavily modified version of Kernel Adiutor developed by Willi Ye. All the credits go to the original developer, not only for his hard work on Kernel Adiutor, but also for being open to open-source community. Your device must be ROOTED to use this app. Otherwise, please don't bother installing this app. Features - Almost all the features available in Kernel Adiutor. - Option to flash recovery zip files while running Android OS. - A simple and user-friendly Custom Controller, which is totally different to that of the official KA (Documentation). - A Script Manager to easily create, import, edit, share and execute any properly formatted shell scripts. - A Kernel downloader, which is also totally different to that of the official KA (Documentation). - CPU Input Boost & Devfreq Boost (Sultanxda). - Simple MSM Thermal (Sultanxda). - Advanced Control for Fast Charge (yank555.lu) & Boeffla Charge Level Interface (Lord Boeffla). - K-Lapse Support (tanish2k09) - Boeffla Sound (Lord Boeffla) with Per-channel Control - Per-channel control for Flar's sound. - Significantly different Faux Sound implementation. - In-built Spectrum Support (frap129). - Wake and sleep gestures (flar2). - Adreno Boost (flar2). - Dynamic Stune Boost (joshuous) - MSM Sleeper (flar2). - Boeffla Wakelock Blocker (Lord Boeffla). - Display Backlight Control (Min & Max). - Switches to tweak SELinux, Android Doze mode and PrintK logging. - WireGuard version information. - Real-time Charging Status. - RAM & Swap Status. - LED Blink/Fade support. - Dedicated Frequently Asked Questions (FAQ) section. - Also compatible with any devices and kernels. - And much more… Translations Please help me to translate this application via POEditor. You may also translate after downloading the original language string available GitHub. Please Note * SmartPack-Kernel Manager contains its own auto-update implementation, which is only available for installation from GitHub release page (and consequently, for IzzyOnDroid). In that case, APK files provided by the developer is directly acquired from the official GitHub release page. * The Anti-Features (NonFreeNet) tag by F-Droid is due to the Kernel downloader (requires downloading kernel from web provided by kernel developers).
F-DroidGitHubIzzyOnDroid
Smoke Reducer
APK
First of all Smoke reducer (and stopper) records the distance between two times you are smoking. Then, it lengthens that time between each cigarette by telling you when to smoke. If you click the Sleep button, the time that you sleep isn't counted to the time between each alarm
F-Droid
Smoking Tracker
APK
Smoking Tracker is an easy to use smoking tracking app that helps you understand your habits and progress towards quitting. Every cigarette you smoke is clearly recorded, giving you detailed insight into your daily, weekly and monthly patterns
GitHubIzzyOnDroid
Smouldering Durtles
APK
Introducing Smouldering Durtles, your trusty companion app for the renowned WaniKani kanji learning platform, crafted by Tofugu! If you're on a quest to master Kanji with WaniKani, Smouldering Durtles is here to make your lessons and reviews engaging and enjoyable, with a plethora of features to enhance your learning experience. Smouldering Durtles offers advanced searching capabilities, allowing you to quickly locate the exact Kanji or vocabulary you're looking for. Bolster your learning with self-study quizzes, testing your knowledge and helping you retain what you've learned. Customize your experience with a variety of themes to suit your personal style and make your study sessions visually appealing. Plus, never miss a review session with the convenience of offline reviews, ensuring your progress remains uninterrupted. Please note that an active WaniKani account is essential to access this app's full potential. Smouldering Durtles is an independent creation and is not officially supported or endorsed by Tofugu.
F-DroidGitHubIzzyOnDroid
Snapdrop & PairDrop for Android
APK
Snapdrop & PairDrop for Android is an Android™ client for the free and open source local file sharing solutions https://snapdrop.net/ and https://pairdrop.net/. Do you also sometimes have the problem that you just need to quickly transfer a file from your phone to the PC? USB? - Old fashioned! Bluetooth? - Much too cumbersome and slow! E-mail? - Please not another email I write to myself! Snapdrop! Snapdrop (as well as the enhanced version "PairDrop") is a local file sharing solution which completely works in your browser. A bit like Apple's Airdrop, but not only for Apple devices. Windows, Linux, Android, IPhone, Mac - no problem at all! However, even if it theoretically would fully work in your browser, you will love this app if you want to use Snapdrop or PairDrop more often in your daily life. Thanks to perfect integration into the Android operating system, files are sent even faster. Directly from within other apps you can select Snapdrop to share with. Thanks to its radical simplicity, "Snapdrop & PairDrop for Android" makes the everyday life of thousands of users easier. As an open source project we don't have any commercial interests but want to make the world a little bit better. Join and convince yourself! SOURCE CODE: https://github.com/fm-sys/snapdrop-android CREDIT: The app is powered by the Snapdrop Open Source project, which is hosted and maintained by RobinLinus. See also https://www.github.com/robinlinus/snapdrop
F-DroidGitHub
Sobriety
APK
Track your addictions and maintain sobriety! Sobriety, the free and open source addiction tracker, is designed to be simple: You input a starting date and time, as well as a name for the addiction, and it tells you how long it's been since you last logged a relapse. You can keep notes on your recovery, track milestones, log how much time or money (or anything else) you're saving by staying sober, and view your relapse history all from one easy to use app.
F-DroidGitHub
SoftPlus Options
APK
Offline-first, privacy-focused options payoff and volatility surface simulator. Explore payoff diagrams for any option combination interactively using the Softplus pricing model (a quick and dirty approximation that avoids Black-Scholes rigidity). Markets are uncertain — no model is the ultimate truth. That’s why this app is built for play and intuition: tweak the volatility surface and instantly see how shocks, skew changes, term-structure shifts, or full volatility regime changes affect your strategy. Features: - Financial modeling of option prices linked to an interactive volatility surface. - Navigate and stress-test strategies across realistic market volatility scenarios. - No tracking, no data ever leaves your machine.
F-DroidGitHub
Solar
APK
Solar is an app to monitor off grid solar setups over bluetooth. It supports simultaneous monitoring of the battery and solar charger. When both devices are connected it can calculate the inverter power. Unlike the OEM app it does not require fine location access and does not have internet permission. Currently only the Junctek KH-F battery monitor (KH110F/KH140F/KH160F) and Ruijing 60A MPPT solar charger (sold under various brands like LiTime, HQST, etc.) are supported. Features: - Real time voltage, current, power, and energy readings - Live plotting of power readings of the charger, battery, and inverter - Reading history from the solar charger
F-DroidGitHub
Solon
APK
A more optimized and debloated version of the SkolaOnLine online school system
F-Droid
Soothing Noise Player
APK
Intended to be an android port of Blanket. Features: Play any combination of 15 calming noises on loop mixed at volumes of your chosing Import custom audio assets Save your favorite combinations and load them later Start default profile on launch (optional) Set a sleep timer and have all noises fade out after a delay Based on Blanket, available on flathub.
F-DroidGitHub
Sotification
APK
Sotification is an extremely simple app that shows a notification with the screen-on time for the current day.Sotification is open source and released under the GPLv3 license. Check out the code if you like.Required Android PermissionsREQUEST_IGNORE_BATTERY_OPTIMIZATIONS to make sure it keeps running in the background.RECEIVE_BOOT_COMPLETED to automatically startup on boot if activated.
IzzyOnDroid
Sound Quick Settings
APK
1. Add the Tile in the Quick Settings panel. 2. Tap the Tile to show the volume slider. 3. Long press the Tile to open the Sound panel. Note: Don't look for a launcher icon, this app only provides a Quick Settings Tile. Open Source project hosted on GitHub: https://github.com/SimonMarquis/Android-SoundQuickSettings
F-DroidGitHub
Sound Toggle
APK
Sound Toggle provides you with a QuickSettings tile to quickly switch the audio mode of your device between Normal, Vibrate and Silent.
F-DroidGitHubIzzyOnDroid
Spartathlon
APK
This app aims to help athletes, supporters and volunteers during the ultra distance race Spartathlon (www.spartathlon.gr/en). Features: * Read race reports * Browse the race schedule and quickly get to the next event * View checkpoints, get directions and filter by "supporters allowed" or "live results available" * Search through the list of the athletes who compete(d) in the current year. * Display your favourite athletes directly on the dashboard * Dark theme (easier on the eyes if you're waiting for your athlete in Nestani) Note: This app is not (yet) officially endorsed by the International Spartathlon Association ISA.
F-Droid
SpeakThat!
APK
Voice notifications done right.SpeakThat! is an Android app that reads your incoming notifications out loud using text-to-speech. Unlike most alternatives, SpeakThat! puts you fully in control of what gets read, when it gets read, how it sounds, and when it stays completely silent.No ads. No subscriptions. No tracking. Just speech.Why SpeakThat!?100% free & open-source - inspect the code, verify the privacy claims, or contribute on GitHubEntirely local - all processing happens on your device, with no external servers and no AIPrivate by design - optional Private Mode can announce the app name without reading notification contentModern Material design - powerful features without a cluttered or confusing interfacePowerful control over what gets readApp-based filtering (whitelist or blacklist specific apps)Smart notification filtering (media, persistent, silent, or duplicate notifications)Word filtering: blacklist words, swap words, or prevent certain notifications from being read entirelyContent caps: limit readouts by word count, sentence count, or timeURL handling: read full links, domains only, or replace links with custom textCustom app name replacements (change X back to Twitter for readouts!)Flexible speech behaviourFull control over voice, pitch, speed, volume, language, and audio outputCustom speech formatting using templates and placeholdersTidy Speech mode to remove emojis and symbols before speakingDelay readouts to give notification sounds time to finishNotification cooldowns and deduplication to prevent spammy repeatsContext-aware & smart logicRespect Do Not Disturb, phone calls, and system audio modesBluetooth device detection (e.g. only read when headphones or car audio are connected)Screen state awareness (optionally stay silent when the screen is on)Time schedules to disable readouts during certain hoursConditional rules for advanced behaviour (such as Bluetooth-only logic)Hands-free controlsShake-to-stop with adjustable sensitivityWave-to-stop using the proximity sensor - perfect for desks or hands-free setupsAutomation & advanced usersWorks with automation apps like Tasker and MacroDroidSettings import/export for easy backups or switching devicesSupport for external TTS engines if Android’s default isn’t your favouriteBuilt-in diagnostics to help troubleshoot complex setupsLanguage & accessibility friendlyFull localisation support for both the UI and text-to-speechCrowd-sourced translations via Weblate: https://speakthat.app/translateSpeakThat! never sends your data anywhere unless you explicitly choose to submit a bug report - and even then, it’s optional. What happens on your phone stays on your phone.Ideal for accessibility, drivers and commuters, desk setups, athletes, parents, busy professionals, and anyone who wants a healthier relationship with notifications.Actively developedSpeakThat! is continuously improved based on real user feedback. It’s built by someone who genuinely uses it every day - which means features exist because they’re useful, not because they look good in a marketing screenshot.
GitHubIzzyOnDroid
Specie
APK
Simple currency conversion. * Currency rates from Floatrates * 150 international currencies * Currency rates updated daily * Last rate update retained for use offline * Multiple translations, except all currency names * App widget to display selected currency
F-DroidGitHub
SpeedCrunch
APK
SpeedCrunch is a high-precision scientific calculator supporting expression editing, history stack, unit conversions, radix systems, complex numbers and user defined variables.Features:Calculations with up to 50 digits of precisionHistory stack with value or expression recallExpression editing with system virtual keyboardFixed decimal, scientific or engineering formatsDecimal, binary, octal and hexadecimal basesBuilt-in functions, constants and units with searchUser defined variables and functionsUsage instructions can be found at the project’s Github presence.
GitHubIzzyOnDroid
Spell4Wiki
APK
Wikimedia Commons Audio Upload Tool Spell4Wiki is a mobile application to record and upload audio files for Wiktionary words to Wikimedia Commons. Spell4Wiki also acts as a multilingual Wiki-Dictionary. App Features: Spell For Wiktionary - Record & upload audio for Wiktionary category-based word lists Spell For WordList - Upload audio for custom word lists from text files or copy & paste Spell For Word - Record and upload pronunciation for individual words Wiktionary Search - Search word meanings from Wiktionary in multiple languages What Spell4Wiki App Achieved: • Supported 250+ Languages for all 4 features • Uploaded 40,000+ audio files to Wikimedia Commons from various language contributors • All audio files are categorized under Wikimedia Commons Purpose of this application There are plenty of words in the Wiktionary. But they do not have enough pronunciation audio files. So we can upload pronunciation audio for words in a simple way. And we can use those pronunciation for wiki data planning and other technologies like machine learning under CC-license. And other linguists can learn how to pronounce a word. Technical Features: • High-quality WAV recording with OGG conversion • Smart filtering to check words that already have audio • Direct upload to Wikimedia Commons with proper categorization • Support for 250+ languages Powered By VGLUG Foundation Kaniyam Foundation, Free Software Activists and Tamil Wikimedia Community How to Use 1. Create account in Wikimedia Commons and login (if no account) 2. Select your language from 250+ options 3. Choose recording mode: Spell4Wiki, Spell4WordList, or Spell4Word 4. Record pronunciation and upload to Wikimedia Commons Note This app loads some configuration (available language list, categories & contributors) details from the app's repo. Useful Links Join the Telegram group: @spell4wiki Spell4Wiki Commons Page: Commons:Spell4Wiki More details about development: Blog Post about Spell4Wiki Tutorial & Demo Videos: Play Videos
F-DroidGitHub
Spelling Wizard
APK
Spelling is one of those things that are particularly crucial in the English language. If you are preparing for a test or improving your skill, SpellingWizard is your friend. SpellingWizard has multiple categories (Verbs, Family, etc.) with each one having multiple challenges. Complete them all to master that category.
F-DroidGitHub
Split It Easy
APK
Going on a road trip? Worried about all the maths you gotta do to find out "who owes whom and how much" after the trip? Well, worry not! Add all your expenses to this app and let it do the calculations for you.
F-DroidGitHub