Productivity

1843 open source Productivity apps

G
GymWen
APK
Official app for the Gymnasium Wendelstein. With this app pupils are able to: * check their teachers substitutions * search through the teachers list * book food in the local cafeteria * use mebis * and much more For more information about the Developer you can visit this site.
F-Droid
HAMtrainer
APK
Quiz yourself on the official questions of the American ham radio license exams, track your progress, focus on challenging questions, and take randomly generated practice exams. The most up to date questions provided, outdated questions also available. Fork of Funktrainer by D.Meyer.
F-Droid
HIIT
APK
The first rule of Zombieland; cardio. HIIT, high intensity interval timer, is a no frills timer for interval training routines, or anything you may need an interval timer for really. You may specify a number of seconds for each active period, a number of seconds for each rest period and, optionally, a number of seconds before the end of each rest period to warn of the upcoming active period giving you time to prepare. No ads No trackers No permissions Ultra simple interface
F-DroidGitHub
HIIT Timer
APK
Simple timer for high intensity trainings.
F-Droid
HRLY
APK
HRLY (Hourly) is a minimalist hourly chime app designed to help you keep track of time without constantly checking your phone. It uses a simple system of long and short tones to signify the hour, running quietly in the background. ✨ Features - Simple Time System: Easily learn the time-telling system. - Customizable Sounds: Use your own audio files for both the short and long tones. - Notification Controls: Skip the next chime or stop the service directly from the notification. - Background Service: Runs efficiently in the background to chime on the hour. - Optional Visual Pulse: An optional visual pulse can accompany the chime on the lock screen. (Still working out some kinks) - User Control: Easily enable or disable the main chime service, visuals, and custom sounds. - Minimalist Design: A clean, no-frills interface. - Open Source: A "View Source" button provides a quick link to the project's GitHub page.
F-DroidGitHub
HSTempo
APK
HSTempo Neo is a music tempo measurement app. It features a single-tap button that can be tapped in time with the music. The BPM is calculated in real time and displayed on the screen. This is a fork of the existing app HSTempo; this version has been updated to work on modern Android devices (Android 15+).
F-DroidGitHub
HTTP Request Shortcuts
APK
Place shortcuts or widgets on your home screen to submit HTTP requests to all your favorite RESTful APIs, webservices and other URL resources. Great for home automation projects! HTTP and HTTPSGET, POST, PUT, DELETE, PATCH, HEAD, OPTIONS and TRACEBasic Authentication, Digest Authentication, Bearer Authentication & Client Certificate AuthenticationCustom request headersCustom request body (text only)Upload files as form-data or request bodySupport for HTTP proxiesSupport for self-signed certificatesBuilt-in icons, support for custom icons or using a site's faviconDisplay response as a toast, window or dialog, or run silentlyGrouping into categories through tabsValue injection through variables (e.g., text, numbers, passwords, selections, colors, dates, …)Run arbitrary JavaScript before & after execution, including special actions, such as (but not limited to):show dialogsshow toastsprompt for user input (e.g. asking for dates, passwords, text, ...)parse JSON or XML responsescompute HMACstore values into global variables for later usevibrateplay notification soundssend TCP or UDP packetssend MQTT messages to a brokerwake-on-lansend Android intentstrigger Tasker tasksread QR code (via 3rd party app)read current physical locationImport & Export in JSON or cURL format3rd party integration (e.g. Tasker)Dark Mode support Some ideas what to use HTTP shortcuts for:Execute a script on your web serverControl your home automation system and IoT devicesInteract with your RaspberryPi and Arduino tinkering projectsAutomate workflowsDownload files Find it on GitHub: https://github.com/Waboodoo/HTTP-Shortcuts. Or visit the official website for documentation: https://http-shortcuts.rmy.ch
F-DroidGitHub
Habit Builder
APK
Habit Builder is a simple, beautiful app that provides you with the right tools to keep track of your habits and understand your progress. The app is free, open source, and respects your privacy by storing everything on-device.Keep track of your habits: Log your habits every day with Habit Builder. Instantly see your progress over the past few days.Visualize your progress: Get insights into your habits and spot patterns instantly. Habit Builder keeps track of your most successful habits, the most active day for each habit, and other useful statistics.Customization: Customize each habit with custom colors and notes. Choose the layout that fits your needs.Your data: Your data never leaves your device as Habit Builder stores everything locally. The app works without an internet connection and you never need to create an account or share your data.
GitHubIzzyOnDroid
Habit-Maker
APK
Have you found it difficult to build new habits? Habit-Maker uses rewards and encouragements to help get over initial willpower required to form new habits. Habit-Maker game-ifies making habits by giving you rewards each time you check a habit. It shows the following progress metrics: - Streaks - The # of days you've completed your habit in a row. - Points - points for checking habits, with multipliers for continuing your streak. - % progress to your 66-day-ingrained habit
F-DroidGitHubIzzyOnDroid
Habits
APK
Features:Ability to add, edit, archive, and delete habits with customizable frequency (per week)Daily push notification reminders to fill out habit status (currently at 11pm)Summary view to track your habit formationColor-coded progress bars on habits to identify which ones you're behind onAbility to archive habits after they've formed, or if you want to ignore them for now.Ability to tweak all logged events (in case you forget or accidentally tap)Log events marked "Done" near midnight to the previous day (tunable soon).Privacy:This app never sends any of your data anywhere (currently, there are no network calls in the codebase!).I will never add ads to this application.I will never collect or send your data anywhere.If the app asks for an unexpected permission please submit an issue on Github! It should only ask to store data locally and to send you a reminder location.Controls:Long press on a habit to enter the "edit" menu for it. This view will show a list of "events" for each habit.Tap on an event's date or time to edit when it happened.On the Summary page, you can tap an "archived" habit to un-archive it.
F-DroidGitHubIzzyOnDroid
Habo
APK
Introducing Habo, the open-source habit tracker app that helps you create and maintain healthy habits for a better life. With its user-friendly interface, Habo makes it easy to track your daily routines and monitor your progress.With Habo, you can customize your own habit list, set reminders, and add notes to help you stay motivated. Whether you’re looking to improve your exercise routine, eat healthier, or simply adopt better habits, Habo is here to help you succeed.Track your progress and celebrate your accomplishments as you build new habits and reach your goals. Habo provides insightful statistics that help you understand your progress and make data-driven decisions.
GitHubIzzyOnDroid
HabsGleich
APK
HabsGleich enables you to note small changes of your mind's performance without referring to non-personal standard tests or uploading sensitive data to third party servers. To this end you collect adventures in the diary on a rougly daily basis. The choice and language of the adventures should be consistent over time and the time between noting two subsequent adventures should not vary too much from one day. After some time the app begins to choose adventures from the diary for mind testing. This choice is adaptive to your mind performance in such a way that you always can expect to have more positive than negative results. The test results are amalgated into a single number, the "mind index". Its value is roughly the number of days you still remember your adventures rather well after. The temporal graph of this mind index is displayed on the statistics page of the app. The diary can be used to search, edit and remove adventures. Some screenshots display quotes by Henry David Thoreau.
F-Droid
Hacker's Diet Offline
APK
The Hacker's Diet, published by John Walker, founder of Autodesk, Inc, and co-author of AutoCAD, as a handy Android app. You can track your weight and excercise and get a weighted moving average of your weight's change over time. The app can be used completely offline, with local backups being created as well. You can also optionally synchronise your weight to the Hacker's Diet Online at https://www.fourmilab.ch/cgi-bin/HackDiet which has additional features like weight gain/loss goals, Trend calculations, graphs over long periods and more.
F-DroidIzzyOnDroid
Hail
APK
Hail is a free-as-in-freedom software to freeze Android apps. Enjoy all features freely! Freeze Freeze is a word to describe the action of forbid apps when they are unnecessary to use device in a better way, cut down the usage of ram and save power. User can unfreeze it to revert. In general, "freeze" means disable, but also Hail can "freeze" apps by hiding and suspending them. Disable Disable apps will not shown in launcher. Enable them to revert. Hide Hidden apps will not shown in launcher and installed app list. Unhide them to revert. Suspend Suspended apps will be shown as grayscale icons in the launcher. Unsuspend them to revert. Working mode Hail can work with Device Owner, Dhizuku, Superuser (Root) and Shizuku (including Sui).
F-DroidGitHub
Haircomb
APK
Haircomb is a crypto currency token which runs on the bitcoin blockchain and claims to be quantum resistant. It was founded in 2019 and was enhanced ever since. This is a full featured package containing: Haircomb Core - the reference implementation of the consensus including a currency wallet. Comb Downloader - Used to fully synchronize Haircomb Core with the Bitcoin blockchain. Features of the Haircomb Core: Stealth addresses, allowing virtually unlimited receiving addresses for your key pair. Liquidity stacks, to pay to any number of recipients each time you transact. Merkle contracts - offer advanced use cases like a comb trade, amount decided later payment and auction. Testnet - to experiment with tokens that have no value (requires sync with the bitcoin testnet). Low memory mode - reduced RAM usage (the wallet starts more slowly in this mode). Features of the Comb Downloader: Accelerator sync, synchronizes you faster to the accelerator recommended by another user.
F-Droid
Hamfisted
APK
With this app, you can prepare for the amateur radio exam for classes N, E, and A. Practice all questions from the official question catalogs of the Federal Network Agency for the parts "Technology Class N", "Technology Class E", "Technology Class A", "Operating Technology", and "Regulations" and keep track of your progress. Use the option to simulate an exam and prepare for the real exam. The app is free, can be used offline, and contains no ads.
F-DroidGitHub
Hangar
APK
Provides a customizable shortcut launcher in your notification drawer to give you relevant, easy access to your most frequently used apps based on smart filtering algorithms. Features include: * Pinned apps * Icon packs and custom app icons * Re-sizeable widget to launch apps * Re-sizeable widget to view app use statistics with color coded bar graphs * Widgets intelligently scale according to size and device * Sort and display apps based on user specified weight factors * Blacklist unwanted apps * Fully customizable! Change the # of shortcuts, icon color, size and more..
F-DroidGitHub
HappyTaxes
APK
HappyTaxes is a private, offline-first cash-basis bookkeeping app with receipt OCR. Made for freelancers, sole traders, small business, even personal finance. Track your finances, prepare for tax time, and keep your data yours. KEY FEATURES • Track income and expenses with receipts • Generate compliant Profit & Loss reports • Maintain 6+ years of records • Receipt capture with OCR (Tesseract - on-device only) • Local backup & restore (ZIP export/import) • Soft delete with 30-day recovery • Work completely offline - no internet required • 100% private - your data never leaves your device PRIVACY FIRST • No data collection • No tracking or analytics • No ads • No cloud sync • All data stored locally on your device • You have complete control over your data PERFECT FOR • Online sellers tracking income and costs • Freelancers managing business finances • Small businesses needing simple bookkeeping • Personal expense tracking and budgeting • Anyone preparing for tax time • People who value privacy and offline functionality OPEN SOURCE Source code: https://github.com/dorumrr/happytaxes License: MIT Issues: https://github.com/dorumrr/happytaxes/issues Late nights for brighter days. Created by Doru Moraru
F-DroidGitHubIzzyOnDroid
Harp
APK
Harp is a privacy centric on-device Personal Health Record application allowing you to create and manage records in plain Org Mode files that are completely under your control. Track journals, metrics, reminders, and medical documents in one place without any cloud account requirement. Files are stored in a transparent, portable Org-based structure, so your data remains readable outside the app and easy to version, sync, or back up with tools you already trust. Attach photos and files to entries, search across your records, and keep sensitive health information local-first by default.
F-Droid
Hash Checker
APK
Fast and simple application for generating and comparison MD5, SHA-1, SHA-224, SHA-256, SHA-384, SHA-512 and CRC-32 hashes from files or text.User guideVideo
GitHubIzzyOnDroid
Hate It Or Rate It
APK
Introducing "Hate it or Rate it," the innovative app designed to transform your shopping experience by allowing you to keep track of products you love and those you'd rather avoid. Whether you're exploring new items or revisiting past purchases, "Hate it or Rate it" provides a simple yet powerful platform to manage your shopping decisions effectively. Key Features: Product Tracking: Easily upload photos, names, descriptions, and store information of your favorite and not-so-favorite products. Informed Decisions: Make smarter purchase decisions based on your own historical ratings and experiences. Easy Organization: Sort your products into 'Hate' or 'Rate' categories for quick reference and decision-making. Privacy First: With optional Google Analytics and Firebase Crashlytics integration, you're in control of your data. Opt in or out anytime for a personalized app experience. Whether you're a meticulous shopper who loves to keep detailed records of every purchase or someone looking for a fun way to track the hits and misses in your shopping adventures, "Hate it or Rate it" is your go-to companion. Join the "Hate it or Rate it" community today and start making informed decisions that save you time and money, all while enjoying a tailored shopping journey!
F-DroidGitHub
Headi - Your headache diary
APK
Headi (Headache Diary) is a privacy-friendly app to log your headaches. No data is transferred to any cloud services. All data is stored locally only. Headi also offers a simple analysis of the recorded data. You can also export your logs as a CSV file for further analysis of the data. To save your records you can also export your whole diary, or just parts of it, as a PDF.
F-DroidGitHub
Headphone indicator
APK
Shows a notification icon in the status bar when headphones are plugged into the phone. Shows a different icon when a headset is attached. Both 3.5mm audio jack devices and USB headphones/headsets are supported. The app aims to be a tiny as possible. No ads, no analytics - just its core functionality. After installation, you have to start the application at least once. Then it will be running as a background service that shows the headset status icon whenever the headphones are plugged in. I wrote the headphone indicator app because I was immensely unsatisfied with apps like (google forced me to remove the name) which are over 2 MiB in size, but 99% of their code is only related to advertisement. Open Source - licensed under the GPLv3+. The source code can be inspected by anyone.
F-DroidGitHub
Health Connect Shortcut
APK
This is a shortcut to the Android Health Connect that usually is buried inside the device settings under Settings > Security & Privacy > Privacy Controls > Health Connect. It doesn’t install or enable anything, it only opens the already present Health Connect based on the AOSP ("com.android.healthconnect"), Google API ("com.google.android.healthconnect") or the PlayStore version ("com.google.android.apps.healthdata").
F-Droid