Productivity
1843 open source Productivity apps
Squeez
APK
Create and uncompress zip archives.
F-DroidGitHub
Standard Notes
APK
Standard Notes is a secure and private notes app. It syncs your notes securely across all your devices, including your Android devices, Windows, iOS, Linux, and Web. Private means your notes are end-to-end encrypted, so only you can read your notes. Even we can't read the contents of your notes. Simple means it does one job and does it well. Standard Notes is a safe and lasting place for your life's work. Our focus is making it easy to write notes wherever you are and syncing them with encryption to all your devices. Our users love us for: * Personal Notes * Tasks & Todos * Passwords & Keys * Code & Technical Procedures * Private Journal * Meeting Notes * Cross-platform Scratchpad * Books, Recipes, & Movies * Health & Fitness Log Standard Notes comes free with: * Seamless sync across all your devices, with easy to use applications on Android, Windows, Linux, iPhone, iPad, Mac, and web browsers. * Offline access, so you can access your downloaded notes even without a connection. * No limit on number of devices. * No limit on number of notes. * Passcode lock protection, along with fingerprint protection. * A tagging system to organize your notes (like #work, #ideas, #passwords, #crypto). * The ability to pin, lock, protect, and move notes to trash, which allows you to recover deleted notes until the trash is emptied. Standard Notes is completely open-source, which means when we say your notes are encrypted with industry-leading XChaCha-20 encryption, and that only you can read your notes, you don't have to take our word for it. Our code is open to the world to audit. We made Standard Notes simple because longevity is important to us. We want to make sure we're here, protecting your notes, for the next hundred years. You shouldn't have to find a new notes app every year. To sustain our development, we offer an optional paid program called Standard Notes Extended. Extended gives you access to powerful tools including: * Productivity editors (like Markdown, Code, Spreadsheets) * Beautiful themes (like Midnight, Focus, Solarized Dark) * Powerful cloud tools including daily backups of your encrypted data delivered to your email inbox every day, or backed up to your cloud provider (like Dropbox and Google Drive). You can learn more about Extended at standardnotes.com/extended. We're always happy to talk, whether it be a question, thought, or issue. Please feel free to email us any time at help@standardnotes.com. When you take the time to send us a message, we'll be sure to do the same.
F-DroidGitHub
StarGW Weight
APK
A simple app to record your weight and show a graph. • Import and export weight via CSV • Share graphs
F-DroidGitHub
S
Starke Verben
APK
Learn the German irregular verbs, test yourself, follow your progress! This application does not require any Internet connexion. The translation for the verbs is available in several languages. If your language is not listed, you can add it by yourself. The application itself is also translatable. To translate the app, use Weblate: https://hosted.weblate.org/projects/starke-verben/
F-DroidGitHub
Starlight Launcher
APK
Starlight Launcher offers a reimagined home screen experience on Android. It is built around a search-focused experience to help you get things done faster. No more looking through walls of icons. Everything is right at your fingertip.Features:Completely open source (https://www.github.com/kennethnym/StarlightLauncher)A clean, minimal home screen.Play/pause music, skip tracks, right on the home screen.Pin any widget you need on the home screen.Built-in widgets such as notes and unit conversion; more are planned (weather, audio recording, translate)A rich search experience, including apps, contacts, math expressions, common controls like Wifi and Bluetooth, and even opening URLs!Fuzzy searchStarlight Launcher is still in beta. Expect bugs and major changes before release.Starlight Launcher Plus:While Starlight Launcher is completely ad-free in the free version, you can unlock extra features with the Plus version, including:Unlimited widgets pinning(Planned) Extension supportAs a way of saying thank you, early beta testers (i.e. people who joined the beta program before the first public release) will get the Plus version for free!
GitHubIzzyOnDroid
Status: Ethereum Crypto Wallet
APK
Status combines pseudonymous privacy-focused messenger and secure crypto wallet into one powerful communication tool. Chat with friends and growing communities. Buy, store, and exchange digital assets. Status is your Ethereum operating system. SECURE ETHEREUM WALLET The Status crypto wallet allows you to securely send, store, and exchange Ethereum assets such as ETH, SNT, stable coins such as DAI, as well as collectibles. Confidently take control of your cryptocurrency and digital assets with our multichain Ethereum wallet app, supporting Ethereum Mainnet, Base, Arbitrum, and Optimism. The Status blockchain wallet currently only supports ETH, ERC-20, ERC-721, and ERC-1155 assets; it does not support Bitcoin. PRIVATE MESSENGER Send private 1:1 and private group chats without anyone snooping on your communications. Status is a messenger app that eliminates centralised message relays for greater privacy and secure messaging. All messages are encrypted with end-to-end encryption. Additionally, no message exposes who the author or the intended recipient is, so nobody, not even Status, knows who is talking to who or what was said. EARN WITH DEFI Put your crypto to work with the latest decentralised finance apps and decentralised exchanges (DEX) such as Maker, Aave, Uniswap, Synthetix, PoolTogether, Zerion, Kyber, and more. CONNECT WITH YOUR COMMUNITY Explore, connect, and chat with your favourite communities and friends. Whether it is a small group of friends, an artist collective, crypto traders, or the next big organization - text and communicate with Status communities. PRIVATE ACCOUNT CREATION Stay private with pseudo-anonymous account creation. When creating your free account, you will NEVER have to enter a phone number, email address, or bank account. Your wallet private keys are locally generated and securely stored to ensure only you have access to your funds and financial transactions.
F-DroidGitHub
Stay Put - Unplug Alert
APK
Stay Put is an app that helps prevent casual theft of your device while charging in public spaces. The app was created to solve a common problem: charging your phone in public spaces while traveling or camping. When you need to leave your phone unattended at a public charging spot, Stay Put acts as your guard. It sounds a loud alarm if someone unplugs your device, deterring potential theft. Stay Put is free software. It is published under the MIT open-source license. CORE FEATURES ------------- - Loud alarm when device is unplugged - Secure disarm with biometric authentication or device credentials - Option to allow disarm by plugging the device back to power - No tracking, no data collection FAQ --- WHEN SHOULD I USE STAY PUT? Stay Put is ideal when charging your phone in public spaces like: - Public libraries - Hostels - Campground bathrooms - Airport charging stations - Any shared charging area HOW DOES STAY PUT PREVENT THEFT? Stay Put doesn't physically prevent theft, but it acts as a deterrent. The moment someone unplugs your phone, a loud alarm sounds. The alarm can only be disabled using your biometric data or device credentials – or by plugging the device back to power (if this option is enabled). CAN I STILL USE MY PHONE WHILE STAY PUT IS ACTIVE? Yes, Stay Put runs in the background and doesn't interfere with normal phone usage. Just remember to disarm it before unplugging your phone.
F-DroidIzzyOnDroid
Stay-Awake on ADB
APK
ADB-Stay-Awake is a simple app that has one purpose: Automatically enable/dissable the "Stay Awake" Developer Options setting as you connect/disconnect to ADB.Important: the android.permission.WRITE_SECURE_SETTINGS is a System permission that is not granted to any non-System app. So to get around this, after installing the app, you have to connect the device to an ADB console and run this command to grant the permission:adb shell pm grant com.duck.stayawakeadb android.permission.WRITE_SECURE_SETTINGS
GitHubIzzyOnDroid
Std Atmosphere
APK
A small tool for aeronautical engineering, providing a model of the standard atmosphere: that is to say the temperature and pressure as a function of altitude. Given a Mach number, you also get the true air speed and conventional air speed.
F-DroidGitHub
Step and Height Counter
APK
This app counts footsteps and elevation gain if step sensor and barometric sensor is available. All data is kept locally only, there is no connection to any server. For statistics you can save your data locally on SD-Card. Please note: Pressure sensor is mandatory. Steps will not be counted during walking, if there is a step sensor but no pressure sensor. Elevation gain should only be counted if footsteps are detected, so only stairs and hill climbing will count, but not elevators or lifts. Don’t expect high accuracy - due to the concept of the sensors the accuracy is limited. And: avoid walking in trains or subways with active measurement, as the pressure (and therefore height) can change significantly during driving. You can save regular and daily statistics automatically on SD-Card and save current values with the floating action button. Starting with Android 10 files are not saved to root-folder of SD-card anymore, but in app-directory. There isn’t much on graphical display of statistic data besides two progress bars. Just use any program which can read csv-values. Permissions: * Access to physical activity: Access to step sensor needs permission to access physical activity since Android 10+. The app will not work without this permission on devices with Android 10 and higher. * Keep device awake: Device will not be kept awake all time. It will be woken up regulary and kept awake if necessary for short time to ensure proper counting of steps and elevation gain. * Write to external storage: App will work without this permission, but you cannot save statistical values or markers.
F-DroidGitHub
Stepsy: Step Counter
APK
Stepsy is perfect for anyone who wants a simple, private way to track daily steps without unnecessary bloat. It’s a lightweight, battery-friendly Android app that uses your phone’s built-in sensors. It prioritizes simplicity, privacy, and full offline data storage.Stay active, monitor your progress, and hit your fitness goals — all through a clean, minimal interface with near-zero battery impact.Automatically calculate distance and calories burned based on your height and weightView your activity trends with dynamic, interactive chartsExport your data as a CSV for backup or analysisUse the home screen and lockscreen widgets to keep your step count front and center
F-DroidGitHubIzzyOnDroid
Stethox
APK
This is a Xposed Module that enables Stetho for every application on your phone. All Stetho functions are given besides Network Monitoring. For this however I highly recommend using mitmproxy or tcpdump and Wireshark. This Module can be used for Reverse Engineering. Especially the Layout Preview is very useful. Please also take a look at Inspackage since this will add even more functions for this purpose. ATTENTION:Never leave this Module enabled or installed on day to day use. THIS IS A SECURITY RISK. Only enable this for Development.
F-Droid
Stopwatch
APK
A simple stopwatch that can be completely controlled from the notification bar. Very lightweight and no permissions. Uses Singleton design betweeen activity and service.
F-DroidGitHub
StorageTrac
APK
Uses inotify to record any file activity in the external storage. Collects data at regular intervals and plots used storage space over time. Uses the GraphView library for plotting.
F-DroidGitHub
Streak
APK
A lightweight, super minimal, streak tracker built in C with rawdrawandroid. Log your daily habits and view your streak continuity. Add entries by clicking the + button, ↩ to undo, or manual input in Add Date.
F-DroidGitHub
Stride
APK
It allows creating and syncing tasks with any git provider (i.e. GitHub, GitLab, SourceHut, etc) or self-hosted server. WARNING: This is currently alpha, so everything is subject to change.
F-DroidGitHub
Studiportal
APK
Mit dieser App werdet ihr immer sofort informiert, wenn neue Noten ins Studiportal eingetragen werden. Die App überprüft in einem festen Interval, ob neue Noten verfügbar sind (natürlich alles einstellbar). Ihr müsst nur eueren HFU-Benutzername und Passwort eintragen. Standardmäßig überprüft die App nur ob neue Noten vorhanden sind, wenn ihr mit einem WLAN-Netzwerk verbunden seid, das könnt ihr aber einfach umstellen wenn ihr wollt.
F-DroidGitHub
Stundenplan
APK
Timetable is an open source tool that clearly shows you your Untis timetable.Why Timetable?Set the colors of the subjects yourselfHide irrelevant coursesBeautiful designOpen sourceI am happy to accept feedback, error reports, feature requests, etc. on the issue tracker and by email to (laslo.hauschild (at) web.de).
GitHubIzzyOnDroid
Styrkur
APK
Styrkur is an easy to use, yet powerful tool to track your workout. Set up your own workout plan or use one of our predefined. There should not be a big step from writing your sets on a piece of paper to using an app. You will get a simple view of what you should do and how much you did the last time. With a built in timer you have full control over both your sets and your pauses. You get simple ways of keeping track of your progress. Styrkur offers both an simple list of your past sessions with your comments, and graphical view of your progress. Track your measurements, weight and muscle gain with a simple and charts.
F-DroidGitHub
Subsurface
APK
Companion app for the cross-platform Subsurface desktop app * Capture dive positions * Search and modify old dives * Synchronise dives with a server for manipulation in desktop app Recent versions require the non-free library Google Play Services library.
F-DroidGitHub
S
Subz
APK
Keep and eye on your subscriptions and contracts. Let you remind of cancelation periods. Add subscriptions and details like costs, billing interval, contract durations and cancelation period Show all subscriptions and their costs Show days until next billing Switch subscription cost overview to daily, weekly, monthly and yearly Modify and delete subscriptions Search for specific subscriptions Sort subscriptions by name, costs, etc. Optional reminder for reaching cancelation period of subscriptions
F-Droid
Sugarizer
APK
Developed for the "One Laptop Per Child" project, Sugar is a leading learning platform used by nearly 3 million children around the world. Sugarizer allow you to discover the Sugar Learning Platform from your smartphone or tablet. It includes a bunch of educative activities coming from Sugar.
F-DroidGitHub
Sumatora
APK
Sumatora has the following distinctive features: * very fast search and display of exact term/term at the beginning/term included * bookmarks and bookmark export/import * search selected text in applications using contextual menu (or sharing) * multilingual search (supports English, German, Russian, Spanish, Dutch, Hungarian, Swedish, Slovenian and French).
F-DroidGitHub
Summation
APK
Summation adds values from a list of items. Each item has a label and a number and multiple lists are supported.
F-DroidGitHub