Productivity

1843 open source Productivity apps

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The Kana Quiz
APK
Are you trying to learn Japanese, but can't seem to remember the pronunciation of the basic Hiragana or Katakana character set? This application is here to help. It will test your knowledge, and drill the basics into your head. You can select which of the twenty different groups you wish to test yourself on. Allowing you to customize based on your skill level. Because we can't learn all this stuff at once. Also includes a reference screen that can display all kana you're currently working on, just to remind you.
F-DroidGitHub
T
Therapiefinder
APK
Therapiefinder supports you in your search for a psychotherapy appointment in Germany. The app lets you maintain a list of psychotherapy practices and reminds you to call them during their opening hours. You can log contacts in the app and then export the log for reimbursement purposes. Thus far the app is only available in german.
F-Droid
Thermocouples
APK
Thermocouples is a reference guide to get general information on thermocouples for all those in the industry that regularly deal with thermal sensors. This handy app features the colour codes for a wide range of thermocouples in a wide range of standards on easy to see images. The shown standards are IEC, BS, ANSI, NFE, DIN, and JIS. The included thermocouples are B, E, J, K, N, R, S, T, U, Vx. Main features: * Shows thermocouples colours for 10 thermocouples across 6 standards. * Information on range, conductor materials and compensates. * Search thermocouples by conductor colours to find type and colour code. * Temperature converter with °C, °F and K. * Cold junction °C to mV calculator. * Modern design. * Open-source via the MIT licence. * mV to °C converter using NIST values for main thermocouple types. Thermocouples is open source. The source can be found at: https://codeberg.org/danb/Thermocouples Feel free to create a pull request or open issues there. This app is 100% free with no "upgrade", "pro" or "unlocked" versions. This app requires no permissions and does not use any user data. Remarks: This application is for quick reference use only, there may be errors or inaccuracies although I try to ensure the information is as accurate as possible. Me, the app maker, or the company advertised, STS, will not be held liable for any misinformation or misjudgement as a result of using this app.
F-Droid
Thermometer Extended
APK
It displays additional information about various ambient conditions. You can also choose to save data and examine it on a plot. Features: * Temperature * Relative humidity * Absolute humidity * Pressure * Dew point * Light * Magnetic field Notice: When you are using Thermometer Extended in Save Data mode, chosen sensors stay active, even if you close application. That may drain device battery especially quickly, so always remember to stop saving data if you do not need it. By default this option for all sensors is turned off.
F-DroidGitHub
Thor - App Manager
APK
Thor App Manager is a modern, open-source Android app manager and installer, designed for power users and enthusiasts who value control, privacy, and efficiency.Thor is built 100% in Kotlin, following Material 3 design principles and leveraging Jetpack Compose for a smooth, responsive user experience. With a focus on minimalism, Thor delivers a full-featured app management suite in an APK smaller than 2.20 MB.Key Features:Fully reproducible, copylefted libre software (GPLv3.0)Material 3 UI with dynamic color supportDisplays installed apps with advanced sorting and filtering (including by installation source)Launch app activities directlyInstall, uninstall, freeze, and unfreeze apps (including system apps)Reinstall APKs or apps via Google PlayShare APK files easilyBatch operations: reinstall, uninstall, or kill multiple apps at onceSplit APK indicator for apps using multiple APKsApp state indicator (e.g., frozen = disabled)Uninstall and freeze/unfreeze system appsLightweight and fast, with a focus on privacy and no analytics or trackersFeatures in Testing:New settings UIPackages.xml editor (based on community scripts)Upcoming Features:Overall application overview (new home UI)Advanced Packages.xml editingApp installer and batch installApp data backupOption to choose installers when reinstallingAnd many more enhancementsTechnical Highlights:100% Kotlin codebase for modern Android developmentSmallest possible APK size for a full-featured app managerUses a modularized, fully Kotlin-converted version of libsu (as suCore) for root operationsCredits:Portions of this app use code from libsu by topjohnwu, adapted and integrated as the suCore module.libsu was fully converted from Java to Kotlin and modularized for Thor, with significant code size reduction and optimizations.License:Thor App Manager is licensed under the GNU General Public License v3.0 (GPL-3.0).libsu is licensed under the Apache License 2.0. All modifications and usage comply with Apache-2.0 requirements.No analytics, no trackers, no nonsense. Thor is free and open source—forever.
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Throughput
APK
Android app to monitor the throughput of your network connections. You will get an persistent notification, which indicates network activity. Upload and Download activity also displayed as small icons, you will see without pulling the notification bar. Other optional informations are: * Ticker message on network change * Public or local ipv4 address * Neighbor cell count * Signal strength * Wifi link speed * Showing names of the most actives app
F-DroidGitHub
Thumb-Key
APK
Thumb-Key is a privacy-conscious smart keyboard, made specifically for your thumbs. It features a 3x3 grid layout, and uses swipes for the less common letters. Its easy to learn, and designed for fast typing speeds. Instead of relying on profit-driven, privacy-offending word and sentence prediction for accuracy, as do most popular phone keyboards like Gboard and Swiftkey, Thumb-Key uses large keys with predictable positions, to prevent your eyes from hunting and pecking for letters. As the key positions get ingrained into your muscle memory, eventually you'll be able to appromixate the fast speeds of touch-typing, your eyes never having to leave the text edit area. This project is a follow-up to the now unmaintained (and closed-source) MessagEase Keyboard, which is its main inspiration.
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Tickmate
APK
Tickmate is basically a one bit journal. For each day, you can specify whether something occurred or not. The occurrences can be arbitrary things, like flossing your teeth or having a drink. You are able to quantify your habits and the accumulated data can be displayed for the past weeks or months to track changes over time. This way, it may help you to get over your old habits or embody new ones.
F-DroidGitHub
TimeLimit.io
APK
Flexible Apps are grouped to categories (a category can contain one or multiple App). You can chose per category at which times it should be allowed. This allows preventing playing games too late. Additionally, you can configure time limit rules. These rules limit the total usage duration at one day or over multiple days (e.g. a weekend). It is possible to combine both, e.g. 2 hours per week end day, but in total only 3 hours. Moreover, there is the possibility to set an extra time. This allows using something longer than regulary once. This can be used as bonus. There is additionally the option to disable all time limits temporarily (e.g. for the whole day or an hour). Multi user support There is the scenario that one device is used by exactly one user. However, with tablets, there are often multiple possible users. Due to that, it is possible to create multiple user profiles in TimeLimit. Each user has got different settings and time counters. There are two kinds of users: parents and children. If a parent was chosen as user, then there are no restrictions. Parents can chose any other user as current user. Children can only chose themselves as current user. Multi device support There are scenarios in which one user has got multiple devices. Instead of time limits per device and splitting the limits across the devices, it is possible to assign one user to multiple devices. Then the usage durations are counted together and allowing an App automatically affects all devices. Depending on the settings, only one device per time can be used or multiple devices at the same time. However, un the second case, it is possible to use more time than available e.g. at connection interruptions. Connected It is possible to view and change settings from any linked device. This connection is possible - if wanted - using your server. Notes Some features cost money if you don't use your own server. These features cost 1 € per month/ 10 € per year (in Germany). TimeLimit does not work good at some smartphone brands (mostly Huawei and Wiko). With the correct settings, it can work better. But better is not good. If it "does not work": This can be caused by power saving features. You can find at https://dontkillmyapp.com/ how you can disable these features. Get in touch with the support if that does not help. TimeLimit uses the permission for the usage stats access. This is only used to detect the currently used App. Based on the currently used App, the App is blocked, allowed, or the remaining time is calculated. The device admin permission is used to detect an uninstallation of TimeLimit. TimeLimit uses the notification access to block notifications of blocked apps and to count and block background playback. Notifications and their contents are not saved. TimeLimit uses an accessibility service to press the home button before showing the lock screen. This fixes blocking in some cases. Moreover, this allows opening the lockscreen at newer Android versions. TimeLimit uses the permission "draw over other Apps" to allow opening the lockscreen at newer android versions and to overlay blocked Apps until the lockscreen is launched. TimeLimit uses the location access to detect the used WiFi network and allow/ block Apps depending on it and your settings. The location access is not used otherwise. If the connected mode is used, then TimeLimit may transmit the usage durations and - if enabled - the installed Apps to the parent user.
F-Droid
TimePlanner
APK
Time Planner is an application for convenient scheduling and tracking of daily tasks. 📱The application supports: - Convenient division of tasks by priority, categories and subcategories 🔥 - Scheduled alerts about the start of events ⏰ - Built-in notes for tasks 📌 - Templates for everyday tasks 🏃 - Automatic repetition of template tasks 🔁 - Protection against erroneous task overlap 📐 - Maintaining analytics and statistics 📊 - Backup and transfer of data 💾 - More than 10 different color themes 🎨 - 6 languages 🌍
F-DroidGitHubIzzyOnDroid
TimeR Machine
APK
TimeR Machine is a free interval timer for not just workout and exercise, but also any situations you need to construct personalized, multi-stage timer plans. It's highly customizable and able to create almost whatever kind of timer you need. Suitable for all kinds of activities, including: - HIIT (High-Intensity Interval Training) workout - Tabata workout - Gym workout - Run, jog, walk exercise - Other sports workouts like cycling, running, stretching, boxing, MMA, circuit training, at-home bodyweight training workouts, cross fit, weightlifting, yoga... This app can serve as: - HIIT Timer - Tabata Timer - Gym Timer - Sport Timer - Round Timer - Productivity Timer - Continuous Timer - Repeating Timer - Custom Countdown Timer - Interval Traning App - ... Not just exercise, this app can help you: - Cultivate a habit - Complete daily routine - Finish game loop - Presentation - Study - ... Customize Reminders - 🎵 Music feedback. Play any sound on your device as a reminder and pause other sounds to remind you. - 💬 Voice feedback backed by Text-to-speech. Let your phone speak anything you want. - 📳 Vibration feedback. Pick different vibration pattern for different events. - ⭐ Fullscreen notification - ⌚ Stopwatch support for the indeterminate event - 🔊 Beep sound - 🚩 Half-way reminder - ⏱ Countdown seconds - 📌 App notification You can: - 🕛 Enjoy this free app with no intrusive Ads. - 🕧 Create any number of timers for free. - 🕐 Set timer names, loops, warm-up, and cool-down reminders. - 🕜 Add groups as sub-timers. - 🕑 Let timers work in the background and show the current progress in a notification. - 🕝 Start and control many timers at the same time. - 🕒 View timers in a list and jump to another stage with a double tap. - 🕞 Enter Picture In Picture mode and choose to show a floating window.. - 🕓 Create timer shortcuts to start them in one click from the launcher. - 🕟 Customize action buttons that are shown on the timer screen. - 🕔 Show a timing bar! - 🕠 Lock the screen while a timer is running. - 🕕 Plus or minus time from current timer time. - 🕡 Customize how much time to plus or minus. - 🕖 Check activities records and history. - 🕢 Schedule a timer to be run at a specific time. - 🕗 Repeat a timer every week or every few days. - 🕣 Back up your timers and settings. - 🕘 Pick an app theme from 9 pre-defined themes + night mode or Use any color as your theme. - 🕤 Automatically change to night mode. - 🕙 Choose to play sound only in the headphones or globally. - 🕥 Pause timers on phone calls. - 🕚 Enjoy nice material design with animations. - 🕦 Support for Tasker, Automate, etc.
F-DroidGitHubIzzyOnDroid
TimeTable
APK
Vulcan is a software used by Polish schools to generate online timetables. This app parses its code and displays it in app and widget. Features: * Support for every web timetable generated with VULCAN * Homescreen widget * Two themes: dark and light * Three theme accents: red, green and blue
F-DroidGitHub
Timed Shutdown [No Root]
APK
Are you used to turning off your phone before going to sleep and want to listen to some relaxing music? With this app, you won't have to move your sore arms and fingers, you can just set a timer, and the phone will turn off after a while! Android does not have any simple way to power off the phone without root, so the best we can do is emulate the manual gestures used to shut down the phone. To do this, the app will use the accessibility permission, but it will not register any user's data. This app is not professional and it's just a side-project of mine that I decided to share with everyone. If you want to contribute or check the code, it can all be found on my github (github.com/maforn). Any help is more than welcome!
F-DroidGitHub
Timed Silence - Don't let your phone rattle you!
APK
An app that manages your phones volume. It will mute your phone for you, so that you never get disturbed when doing important things! Time Create schedules for when your phone should be muted or loud Calendar Let your calendar manage the volume for you. Depending on events, your phone will be silent! Keywords If you have specific events, keywords will help you get the silence you need! Bluetooth When a bluetooth device connects, your phone can react to it! Sanity Check Just so that you don't miss anything important, we have a checkup that you can use to verify your settings!
F-DroidGitHub
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Timezone Updater
APK
Downloads and updates a time zones to latest version on your device. This update should fix all known problems with time zones, such as incorrect time in Android and some applications. Updated the following files:/data/misc/zoneinfo/tzdata or /system/usr/share/zoneinfo/*/system/usr/icu/*.datBefore starting the update procedure is recommended to make backup copies of these files or the entire system.Requirements:Android 2.3 (API 9) or laterSuperuser permissions (root)BusyBoxUpdate procedure:Get superuser privileges (root).Install BusyBox.Check the connection to Internet.Tap UPDATE button.Restart your device.
GitHubIzzyOnDroid
Tinc Mesh VPN
APK
Main features: • Does NOT require root privilege • Uses conventional tinc configuration files • Configurable VPN access/bypass per Android application • Support for password-protected private keys • Connection management through a graphical user interface • Automatable using third party Android applications via Intents Notes: • This application is only a VPN client, which is not tied to any VPN service provider by default. • It requires an existing tinc network to connect to. • For more information about the tinc VPN protocol, see https://www.tinc-vpn.org/ Platform specific limitations of the Android client: • Operates with tinc in router mode only • Connects to only one tinc network at a time • No support for hook scripts Please see the project's website for more information (setup guide, documentation, sources, issues): • https://tincapp.euxane.net • https://github.com/pacien/tincapp
F-DroidGitHub
Tiny Keyboard
APK
Android OS contains a default Keyboard and KeyboardView implementations (deprecated as of Android 10, but still available). Input method developers can use these classes as base for their own keyboard implementations. Tiny Keyboard is an implementation without any changes.Smallest possible APK size of 22kB (as of version 0.3)Permissions: 0Features: it has keysSupported layouts: en_USNo Launcher icon and SettingsTo enable the keyboard:Go to: System Settings - Language and Input - Virtual Keyboard - Manage Keyboards (path may be different across Android versions and brands).Enable the Tiny Keyboard (you my get a default warning about tracking, don't worry, it can't track what you type due to the lack of Network permission)Switch to Tiny Keyboard from current Input Method (differs between keyboards, usually long-press space)
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TinyBit Launcher
APK
𝙏𝙝𝙞𝙨 𝙞𝙨 𝙩𝙝𝙚 𝙡𝙖𝙪𝙣𝙘𝙝𝙚𝙧 𝙪𝙨𝙚𝙙 𝙖𝙣𝙙 𝙙𝙚𝙫𝙚𝙡𝙤𝙥𝙚𝙙 𝙗𝙮 ██████████████████████▀█ █─▄─▄─█▄─▄─▀█─▄▄─█─▄▄▄▄█ ███─████─▄─▀█─██─█─██▄─█ ▀▀▄▄▄▀▀▄▄▄▄▀▀▄▄▄▄▀▄▄▄▄▄▀ Motives for developing my own launcher: 🔹Clean main screen to enjoy the wallpaper 🔸Fast access to apps by searching 🔹Icon Pack compatible 🔸Ability to customize colors and behaviors New Features: ⦾ Update app list when changes detected ⦿ Adaptive icon shapes ⦾ Cache icons for fast result display ⦿ Tags to better organize apps ⦾ Dock items to filter results ⦿ Preference color preview ⦾ Shortcuts for apps, contacts, etc. Source code https://github.com/TBog/TBLauncher The initial idea and code came from https://play.google.com/store/apps/details?id=fr.neamar.kiss
F-DroidGitHub
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Tip Calculator
APK
Dead simple tip calculator that computes tip based on the subtotal, pre-tax. It's also my first app, so some things are missing that I don't know how to implement just yet.
F-Droid
Tipatch
APK
TWRP Data backups do not include Internal Storage, which is the emulated SD card that stores your photos, videos, downloads, and more. This means that in the event you transfer phones or completely wipe data, all of that is gone! Users must resort to error-prone manual backups instead.Tipatch is here to help. Simply run it on a TWRP image file to produce a new one which backs up all internal storage, making backups complete.If you are rooted, it’s even better! Simply tap a button to patch your current recovery in-place in seconds. NOTE: Tipatch is no longer maintained.
GitHubIzzyOnDroid
TkTon Wallet
APK
TkTon Wallet is a wallet for TON (The Open Network) blockchain. Main features: * Multiple wallets support * Possibility to check any address on network * Possibility to check transactions of any address on network * Material Design * Uses lite-client with Merkle proofs (without HTTP REST proxy server)
F-DroidGitHub
To Don't
APK
A good look at bad habits. Jot down your vices in a tap, right from the home page. Use Notes to add details — like a healthy alternative to that chocolate bar you cannot resist. And organise your input with Labels. Faster than you can grab a pen. Find your bad habits on the home page, and cross out the ones you give into. These will move to Done for the day. The next morning, start off fresh with a full list of things to avoid. Stay on top of your progress. The Log gives you insight into your overall success rates and pinpoints what bad habit you have been most attached to — over a week, a month, or a year. So you can easily work toward a better you. Webpage: https://www.crazymarvin.com/todont Translate To Don’t: https://hosted.weblate.org/engage/todont/ Source on GitHub: https://github.com/Crazy-Marvin/ToDont
F-DroidGitHub
ToDo List Widget
APK
A simple todo list widget. Newer versions are available elsewhere, but no source code is published for those.
F-DroidGitHub
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ToGoZip ('==> Zip')
APK
Add to Zip for android-s share/send menu. Easy collecting files from every supporting app into one zip-file while being 'on the go' or offline. (Note the english 'to go' means 'while traveling'). This collecting '2go.zip'-file is like a suitcase where you can put things (files) into from nearly everywhere (from every app that supports 'share' / 'send') and that can travel everywhere (via email, bluetooth, nfc). The program's author uses ToGoZip to collect new android calendar entries that should be later imported into the desktop-pcs-s calender. Required Android Permissions: WRITE_EXTERNAL_STORAGE to save/update '2go.zip' to some public folder. READ_LOGS: after app crash the errorlog is written to {last-zip-dir}/toGoZip.logcat-*.txt or clipboard .
F-DroidGitHub