Productivity

1843 open source Productivity apps

T
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
Todo
APK
✨ A simple, private space for your tasks and thoughts. A clean, straightforward tool for managing your daily tasks and capturing your notes, designed to stay entirely on your device. 📱 ✅ Everything in One Place Keep your life organized without switching between apps. Whether you’re checking off a quick grocery list or writing down ideas, everything is right where you need it. 📝 🛡️ Privacy First Your data never leaves your phone. With built-in biometric locking, you can keep your personal thoughts and important lists safe from prying eyes using your fingerprint or face unlock. 🔒 🔇 No Distractions No ads, no tracking, and no internet required. It’s just a reliable, fast, and quiet place to organize your life. 🎯
F-DroidGitHub
Todo Agenda
APK
Todo Agenda is home screen widgets for your Android device. It displays a list of calendar events and tasks so that you can easily have a glimpse at your due, current and upcoming appointments. Features: * No advertising. Free and Open Source. * Displays all events from your calendars and task lists. Optionally shows past events. * Automatically updates when you add/delete/modify an event. Or you may update the list instantly. * Select only the calendars you want to see in the widget. * Create several widgets, if you need. Each widget will have its own settings, including layouts, colors, filters and selected calendars. * Customize background colors and transparency of different widget parts, text's black and white shading. * Scroll through the list of events. Use "Go to Today" button to return to today instantly. * Customize the text size of the widget. * Fully resizable widget with alternative layouts. * Indicators for alerts and recurring events. * Lock time zone when travelling to different time zones. * Turn off Widget or Day headers, event icons, Days from today, etc. and see only what you need. * Android 7.0+ supported. Supports Android tablets. For the older devices please use Todo Agenda for Android 4 - 7.0 app.
F-DroidGitHub
Todo List (PFA)
APK
The Privacy Friendly To-Do List can be used to keep outstanding tasks in mind and organize a personal schedule. This application allows to create lists of tasks which can be individually managed. Each list contains a set of tasks. Each task can have a deadline, a reminder time and a list of subtasks. By setting a reminder time the user will be informed by a notification. It is possible to display all tasks in a calendar, to protect the app with a secret pin and to sort and prioritize tasks within a list. Colors indicate the urgency of a task (taking the deadline into account). Features of Privacy Friendly To-Do List 1. PIN protection Open the Settings menu to setup a PIN protection for your application. The PIN needs to be a number with 4 digits. You are asked for it every time you start the application / start the main view. 2. Reminder You can set a reminder to your tasks that will notify you if a deadline is approaching. Settings provide you the possibility to enable a notification sound. 3. Widget In addition, this app provides a widget that you can add to your device’s home screen. The widget presents you tasks that belong to a chosen list. Clicking on a task or its checkbox leads to the main view of Privacy Friendly To-Do List. 4. Progress by subtasks By default, progress can be chosen freely by the user when creating or editing a task. To-Do List gives the opportunity to automatically compute and show the progress of a task dependent on its done subtasks. Therefore go to Settings and enable progress by subtasks. Our Privacy Friendly App differs from other applications with respect to three aspects: 1) Minimal permissions Privacy Friendly To-Do List does not use more permissions than are strictly necessary to provide its functionality. 2) No advertisement Privacy Friendly To-Do List completely relinquishes advertisement. Many other free apps in the Google Play Store dazzle annoying advertising which also shortens battery life. 3) No tracking Privacy Friendly To-Do List does not use any trackers. Privacy Friendly To-Do List is part of the Privacy Friendly Apps group developed by the research group SECUSO at Karlsruhe Institute of Technology. More information at: https://secuso.org/pfa You can reach us via X - @SECUSOResearch https://x.com/secusoresearch Mastodon - @SECUSO_Research@bawü.social https://xn--baw-joa.social/@SECUSO_Research/ Job Offers - https://secuso.aifb.kit.edu/english/Job_Offers.php
F-DroidGitHub
TodoTree
APK
Keep your mind clear by quickly creating a nested tree of notes and tasks. Some example usages of this app are: * Creating quick notes on a given subject * Exploring complicated ideas for potential projects. * Maintain a list of tasks that have to be done * Maintain a list of long term tasks with notes. * Keep a groceries list
F-DroidGitHub
Todosian
APK
Todosian is an Android todo app for Obsidian users. It manages todo lists stored as Markdown files inside your vault (or any folder you sync to your phone). Todosian reads and writes your existing .md files directly. There is no database import, no account, and no built-in sync. How it works - Connect a folder using Android's Storage Access Framework (SAF) - Each Markdown file becomes a category - Todos use standard Markdown checkboxes: - [ ] and - [x] Features - Add / edit / toggle / delete todos - Create / rename / delete categories (files) - Optional support for Obsidian Tasks plugin metadata (dates, priority, recurrence) - Material 3 UI, dynamic color (Android 12+) - Offline-first and privacy-focused (no analytics) Notes - Todosian modifies your Markdown files directly. Keep a reliable backup of your vault/folder. - Todosian is independent and not affiliated with Obsidian or the Obsidian Tasks plugin.
F-DroidGitHub
Toggle Lineage Profiles
APK
This app allows to quickly toggle any of the system profiles of LineageOS using a widget from the home screen. It only works if you have LineageOS 14 or higher installed in your device. Tested up to LineageOS 18.0.The functionalities are:Having the widget in the home screen you know easily which profile is active at any moment.Customize the icons and colors of the profiles to be shown in the widget.Get a notification when some special profile is activated. For example, if you have a profile that disables the lock screen and it is automatically activated in some circumstances, you may want to get a notification when it is activated.Two ways of switching from one profile to another:Using a popup window that shows the list of existing profiles and lets you select the one to activate.Quick toggle from one profile to the next every time you click in the widget.Put a tile in the quick settings bar for the system profiles. Although this functionality comes already built-in in Lineage OS, some releases seem to lack it.This app is open source, with no ads and no in-app purchases, but provided with no warranty. Feel free to vote 0 starts if you want :)
GitHubIzzyOnDroid
Toki Pona Dictionary
APK
View the entire Toki Pona dictionary offline on your android device. Provides the definitions for each word and their part of speach. Small app, Less then 900KBs.Toki Pona is a minimalist conlang created by Sonja Lang in 2001. It has only 14 phonemes (sounds) and around 120 words.
IzzyOnDroid
Tomodoro
APK
Tomodoro is a modern Pomodoro technique and task management app. This application helps you manage your daily tasks and boost productivity by setting customizable work and break intervals. Key features include: - Customizable Pomodoro timer (work and break durations) - Task management with categories - Simple and modern user interface - Light and dark mode support - Local storage (no internet required)
F-DroidGitHub
TonUINO NFC Tools
APK
This app simplifies writing of NFC tags for the open source TonUINO DIY music box. More information about TonUINO can be found at https://www.voss.earth/tonuino This app will only work if the device supports NFC. It also shows the content of written TonUINO NFC tags, and allows for simple copying or changing.
F-DroidGitHub
T
TopoSuite
APK
TopoSuite for Android is an application that targets land surveyors by helping them determining new geographical points based on measurements and offering some utilities. It is able to do the following calculations: Polar calculations: * station orientation * free station * polar survey * polar implantation * axis implantation Orthogonal calculations: * orthogonal survey * orthogonal tracking * orthogonal implantation Intersections calculations: * lines intersections * circles intersections * line / circle intersections Surface calculations: * surface included with arc of a circle * parallel limit displacement regarding compulsory surface Miscellaneous: * field / distance * point projection on a line * circle computation using three points * arc of a circle segmentation Mathematics: * triangle solver * circular elements resolution Data, such as points, can be imported into the application from CSV, LTOP or PTP file formats and exported to CSV. The history of all the calculations, the points and application settings can be exported to file (*.tpst) which can be imported into other instances of the application or simply later on.
F-DroidGitHub
Torchie
APK
Use the LED flash of the camera as a flashlight. Easy access this functionality by pressing both volume buttons together. It works in screen on, lock screen and screen off (when enabled from settings). Features: * Turn on/off torch / flashlight / LED just by holding volume Buttons / keys together * Works in screen on, lock screen, even while screen off (when enabled from Settings) * Optimized (zero) Battery usage (unless enabled in screen off via settings) * Standalone torch / flashlight / LED app too! * Easy, innovative and handy Material Design UI * Very light, tiny and small (~1 MB) * Super fast and reliable * Brightest guaranteed * Innovative, simple & handy * No privacy / security issues * No Root required * No framework / plugin required
F-DroidGitHub
Torchlight (Privacy Friendly)
APK
The Privacy Friendly Torchlight application uses the smartphone’s flash light in order to provide the functionality of a simple torchlight. It belongs to the group of Privacy Friendly Apps. Our Privacy Friendly Torchlight App differs with respect to two aspects: 1. The Privacy Friendly Torchlight App only requires the minimum amount of permissions, namely: In category "Camera/Microphone": CAMERA This permission is required to control the smartphone’s flash light (on/off). Most of Torchlight Apps in the Google Play Store require additional permissions. E.g. accessing the network or Internet which is mostly used to display advertisement. Some apps have access to GPS or telephony data. 2. The Privacy Friendly Torchlight App completely relinquishes advertisement. Many other apps in the Google Play Store display advertisement. Feel free to contact 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
Touch Torch
APK
Whenever your finger touches the screen the device's flashlight turns on and stays on as long as your finger is in contact with the screen. As son as you lift the finger off the screen, the light turns off again. Try some fun patterns or even try morse codes using this app! Happy flashing! …erm Note for developers: I am happy if this app serves somebody well and am happy to accept pull requests :-) Please feel free to contribute!
F-DroidGitHub
TouchDetector
APK
Display your finger touches on screen.
F-DroidGitHub
TouchDroid
APK
TouchDroid is an Android Application to Emulate inpute devices i.e. Touchpad and Keyborad to control Windows computer via local Network. TouchServer is reuired to be Running on Windows Operating System in order to capture data sent by Application from network and to register Appropreate events to Host Operating System.
F-DroidGitHubIzzyOnDroid
TourCount
APK
TourCount supports species-specific and individually GPS-localized registering of butterflies. New in Version 3.8.0: - Exported Excel spreadsheet improved - Code improvements - Text corrections - Docs updated - Bugfix Features: - Data recording is organized for a regional tour with its expected butterfly species. - Databases can be individually created and adapted within the app regarding metadata and expected butterfly species. - The app has an internal pool of many European species and comes with a prepared basic database with the most common species in Europe as a starting point for direct use. - Separate counters for ♂-♀-indeterminate, ♂, ♀, pupa, larva or egg. - You may use an individual species list per region. - Results are prepared for easy readout to transfer them to the science4you entry mask for butterfly registration. - The results can be exported in formatted XLSX or CSV format, as well as in an SQLite database file (e.g. to transfer them to a PC, for easier reading in a spreadsheet program, or for further processing). - Help contains a detailed userguide. - TourCount supports counting in German, English, French, Italian and Spanish language and provides locale species names in these languages. Functions: - Editor for metadata in preparation for an inspection - Counter page with scroll-down list for species selection - Editor for individual species data of a count (e.g. status, remark or bulk count entry). - The app automatically inserts date, time, coordinates and height as well as location data by reverse OSM-geocoding provided that GPS and internet are accessible. - The app provides functions to add, delete or edit the species for the current species list. - The results page shows metadata, notes, totals and counting results per species. Prerequisites: The app requires permits for - storage access for importing and exporting counting data, species lists and results, - reading location data by GPS for coordinates and location info per counted individual, - internet access for OpenStreetMap reverse geocoding requests (locality info) and - preventing the sleep mode. The smartphone screen should have a minimum resolution of 1920 x 1024 pixels. The app is usable with Android version 11 or newer. Documentation is provided under https://github.com/wistein/TourCount/tree/master/docs. TourCount is one of two apps for European butterfly monitoring. The 2nd app, TransektCount serves transect counters on their inspection walks. It supports species-specific counting of butterflies per transect section according to the European Butterfly Monitoring Scheme method. Both apps use the coding scheme of Karsholt/Razowski for European butterflies and thus contain only European butterflies.
F-DroidGitHub
Tournant
APK
Tournant serves your favorite dishes on your Android device! **Features** 📝 Create and edit recipes (with Markdown support) 💡 Add ingredients, ingredient groups and linked recipes 🔍 Search for recipes and categories and sort by various criteria 🧰 Scale ingredient lists, quickly start timers, log preparation dates, and benefit from other useful tools 📦 Export and share recipes as JSON files or ZIP archive with friends or use the Gourmand XML format Tournant is compatible with Gourmand Recipe Manager (previously known as Gourmet) for desktop. Importing, exporting and syncing with a Gourmand XML file is supported. **Visit the website for documentation** https://tournant.zimbelstern.eu
F-DroidGitHub
TpmsMonitor
APK
TpmsMonitor allows to parse, show and store pressure and temperature as received by Bluetooth Low Energy tire pressure monitor sensors (TPMS). These sensors do not allow to establish a connection to other devices, but rather broadcast the readings as they see more fit (usually when a change in pressure or temperature is detected), requiring companion apps to just be listening for incoming messages.
F-Droid
Track & Graph
APK
Track & Graph: Dashboards fürs Leben Track & Graph hilft dir, Muster in deinem Alltag zu erfassen, zu visualisieren und zu verstehen. Zeichne numerische Werte oder einfache Ereignisse auf, um persönliche Dashboards zu erstellen, die dir Einblicke in deine Gewohnheiten, Verhaltensweisen und Aktivitäten geben. Visualisiere deine Daten mit Liniendiagrammen, Kreisdiagrammen und statistischen Berichten, die Trends, gleitende Durchschnitte und Intervalle zwischen Ereignissen anzeigen. Organisiere deine Tracking-Elemente in anpassbaren Gruppen, die zu deinen Bedürfnissen passen. Track & Graph bietet jetzt eine Lua-Scripting-API, mit der du eigene Berechnungen erstellen kannst (wie kumulierte Summen, Differenzen oder Finanzmetriken). Track & Graph ist komplett kostenlos und Open Source – ohne Werbung, Konten oder In-App-Käufe. Deine Daten bleiben privat – sie werden nur auf deinem Gerät gespeichert und können jederzeit einfach gesichert werden.
F-DroidGitHubIzzyOnDroid
Track Work Time
APK
This app can track your work time easily! You can automate time tracking using geo-fencing functions (see below). You may also categorize each recorded interval by a predefined client/task and a free text. Of course, the list of clients/tasks can be edited to suit your needs, and the app has a widget for your home screen. Additionally, if you wish, your flexible time account is taken care of: you always see how much you worked. You can also keep an eye on how much work time is left for today or for the current week (by a notification which you can enable). The app enables you to modify the planned working time effortlessly - just tap on the date you want to edit in the main table. You may provide the geo-coordinates of your work place and the app can automatically clock you in while you are at work. This is done without using GPS, so your battery won't be emptied by this app. You also may provide a Wi-Fi network name which is visible at your work place the app can use to clock in automatically when this SSID is in range (you don't need to be connected to this network). Of course you should have Wi-Fi enabled for this to work. You don't want to open the app for clocking in and out? No problem - there are at least three ways to do that: add the widget to your home screen, use launcher shortcuts (long press the app icon for that) or add a new quick settings tile to your panel by tapping on the pencil below and dragging the "Track Work Time" tile up which then can toggle your clocked-in state. If you prefer to use other apps like LlamaLab Automate or Tasker for tracking your movements, that's fine - TWT can be triggered from other apps and just do the book-keeping of your work time. In this case, you have to create broadcast intents called org.zephyrsoft.trackworktime.ClockIn or org.zephyrsoft.trackworktime.ClockOut. When using ClockIn, you can also set the parameters task=... and text=... in the "extra" section of the intent so your events are more meaningful. You can also use the action org.zephyrsoft.trackworktime.StatusRequest to get the current state of TWT: is the user clocked in, and if so, with which task and how much time remains for today? For more details on this, see the web site. It's also possible the other way around: TWT generates broadcast intents on event creation/update/deletion. Automation apps can listen for the actions org.zephyrsoft.trackworktime.event.Created, org.zephyrsoft.trackworktime.event.Updated and org.zephyrsoft.trackworktime.event.Deleted. See the web site for more details and some screenshots on how to use it. If you have a Pebble smart watch, the app will notify you on clock-in and clock-out events which is especially useful if you want to be in the know about automatic time tracking via location and/or WiFi. For other smart watches you can enable some options regarding notifications to help you. Firstly, you can enable the notification generally. Without any other related option, this will only display a notification on your phone in case you're clocked in. To also display this notification on your phone when not clocked in, select to always show it. Now, if you want it also on your watch, you also have to switch notifications to non-persistent (otherwise Android won't synchronize them). This is kind of a compromise because with this option notifications won't be pinned at the top of the list and also can be closed unintentionally (but will be displayed again after a minute). In addition you can silence all notifications so you are not distracted by them (this will be applied on your watch as well as on your phone, Android doesn't differentiate here). If you want to back up your data, you have the choice: use Google's mechanism or do it on your own. To use Google's servers just enable the corresponding option. And if you don't want to give your data to Google: The app automatically creates a backup each day which is written to the directory you allowed for the app (if you didn't allow
CodebergF-Droid
Traditional T9
APK
TT9 is a Nokia-style 12-key T9 keyboard. It provides predictive text input in 40+ languages, configurable hotkeys, clipboard, undo/redo, and extensive customization. It works on touchscreens, physical keypads, and TV remote controls. And best of all, it doesn't spy on you! Supported languages: Arabic, Bulgarian, Catalan, Simplified Chinese (Pinyin), Croatian, Czech, Danish, Dutch, English, Estonian, Farsi, Finnish, French, German, Greek, Gujarati (phonetic), Hebrew, Hindi (phonetic), Hinglish, Hungarian, Indonesian, Irish, Italian, Japanese (Romaji), Kiswahili, Korean, Latvian, Lithuanian, Norwegian, Polish, Portuguese (European and Brazilian), Romanian, Russian, Serbian (Cyrillic), Slovak, Slovenian, Spanish, Swedish, Moroccan Tamazight (Latin and Tifinagh), Thai, Turkish, Ukrainian, Vietnamese, Yiddish. Philosophy: - No spying, tracking, telemetry, reports, or data collection of any sort. - No ads or unnecessary bells and whistles. It only does its job, typing. - No unnecessary network connections. The Full version operates entirely offline, and the Lite version connects only to download dictionaries from GitHub. Voice Input may require Internet access, depending on the available voice services. - Open-source, permitting you to verify all the above yourself. - Created with help from the entire community. - Things it will (probably) never have: QWERTY layout, swipe-typing, GIFs, and stickers. - Not intended as a clone of TouchPal, Sony Ericsson, KaiOS, Samsung, etc. While it captures the feel of the classics, TT9 offers its own experience and won’t replicate any device or app exactly. Thank you for understanding, and enjoy TT9!
F-DroidGitHub
Traffic Light
APK
Traffic Light is an open-source tool for tracking your network usage while ensuring total privacy. Inspired by Internet Speed Meter and GlassWire. Features: - Free and open source - Uses few permissions - Uses less battery - No tracking - Beautiful UI - Fast and modern
F-DroidGitHub
Trailence
APK
Hiking and GPS Track Management Tool (GPX). - Organize your tracks - Record a track during your hike - Import tracks from GPX files - Add photos on the track - Plan a track with Open Street Map - Edit your tracks - Share with friends - Publish your trails to the communauty - And more !
F-DroidGitHub