Productivity

1843 open source Productivity apps

Glucosio
APK
Glucosio is a modern diabetes app for blood glucose, HB1AC, Cholesterol, Blood Pressure, Ketones, Body Weight and more. Glucosio diabetes tracker makes it quick and easy to track all aspects of your diabetes! Glucosio is the only open source diabetes app for both type 1 & type 2 diabetes and entirely free! Features: * Quick and easy logging (blood glucose, HB1AC, Cholesterol, Blood Pressure, Ketones, Body Weight etc.) * Designed for both type 1 & type 2 diabetes * Estimated HbA1c & HbA1c conversion calculator * Choose Glucose Target (ADA, NICE, AACE, Custom) * Reminders; * Daily, weekly and monthly graphs and analysis * Assistant gives tips and more * Backup to Google Drive and export data to CSV * Import from CSV * Free support (average response time under 24 hours!) * Accesibility features * Opt-in to support diabetes research anonymously through the app * Support for Android 7.1 shortcuts
F-Droid
GnuCash Mobile
APK
GnuCash Mobile is an application for keeping track of GnuCash transactions on the go.Note: this app is not meant to be a standalone implementation of GnuCash. Rather, it’s a simple tool for recording transactions as they happen that also allows you to export in a GnuCash-compatible format (CSV).Capabilities:Import a set of accounts (these should be exported from a valid GnuCash instance; File › Export › Export Account Tree to CSV…)Create transactions a GnuCash-compatible, double-bookkeeping fashionExport said transactions for import into a standalone GnuCash instance (File › Import › Import Transactions from CSV…). Use the „GnuCash Export Format“.Set favorite debit and credit accounts for pre-populating transaction fields.
GitHubIzzyOnDroid
GoQuiet
APK
A Shadowsocks plugin that obfuscates the traffic as normal HTTPS traffic to non-blocked websites through domain fronting and disguises the proxy server as a normal webserver.Read more here.
GitHubIzzyOnDroid
Goals Tracker 24/7 - timeto.me
APK
The main feature of this app is goals. Tap a goal to start a timer with the remaining time for that goal. Timer is running all the time, 24/7, even for sleep or breakfast. No stop option! To stop the current goal, you have to start the next one. You can add a checklist for goals. Useful for morning/evening routines, work, exercises, etc. This way I control my time and don't forget anything. Try to adapt it to your life. Best regards, Ivan
F-DroidGitHub
Golden Ratio
APK
Golden Ratio is a free and open-source (FOSS) Android calculator designed to help you calculate proportional values based on the Golden Ratio. Whether you're a designer, mathematician, or just curious about the ancient Greek concept of harmonic proportions, this app makes the process easy and intuitive.This isn't just a basic A+B calculator, it intelligently fills in missing values based on the Golden ratio. It can compute:* A and B based on the SUM value,* A and SUM based on the B value,* B and SUM based on the A value.How to use:* Enter exactly one value: A, B, or SUM.* The app will automatically calculate the missing 2 values using the Golden Ratio (and basic math).* Click "Calculate" to calculate, and click it again to clear the inputs.* Click "Clear" to reset only the history.Features:* No ads or tracking* FOSS* Fully translated in English and Latvian.* Shows calculation history* Calculate A, B, and SUM easily using the Golden Ratio* Calculated values based on the Golden Ratio are marked with the φ symbol in history* Simple interface* Very lightweight
GitHubIzzyOnDroid
Govee Home
APK
Govee Home is a smart home automation app that allows you to control and manage your Govee smart devices, including LED lights, sensors, and other connected devices. Monitor device status in real-time, create custom lighting scenes, and automate your smart home.
Direct
Gps Icon
APK
Before Kitkat, The GPS icon in the status bar reflected whether your device was still searching for satellites or already had acquired a fix. With Kitkat, this no longer was the case – but an XPosed module named GPSNotification fixed that. This module is no longer working with Lollipop – which is where Gps Icon comes into play. Thanks to this little app, you again can see the GPS status in your status bar.The developer of GPS Icon doesn’t want an app which needs less than 50kB to do its job inflated to 500kB or more just because of drawing in the „usual frameworks“ – so it sometimes takes a bit of playing around to have it working on as many Android versions as possible. Version 1.3.0 worked well for a long time – but no longer for Android 8 (Oreo). Attempts to get that working broke it for either Android 6, 7 or both – so after the experiments, we decided to keep 3 versions:v1.3.1: a special old version, actually created after v1.4.3, based on v1.3.0 and made working for Oreov1.4.2: version with new features but before „Oreo hacks“ (i.e. probably not working on Oreo)v1.4.6: version with new features which now hopefully works for all aforementioned platforms (but no longer with Android 10)Should there still be any issues, please report!
GitHubIzzyOnDroid
Graded - Grade tracker
APK
Simplify your school grade management with Graded. Our app streamlines the process for everyone, adapting to any grading system you may use. Say goodbye to stress and wasted time, Graded is from now on your essential student companion! Key Features: - Integration with the Luxembourgish school system for easy setup - Effortless subject customization, including coefficients and groups - Automatic grade and average tracking for each subject - Handling of multiple years and terms - Customizable grading system to match your school's or your personal preferences - Quick and hassle-free grade entry - Clean interface available in light and dark modes and in multiple languages - Data export and import options Why Choose Graded? - Free, open-source, and privacy-conscious - Regular updates with new features and optimizations - User-friendly, customizable, and helps you stay focused on your future progress Try Graded today and retake control of your academic journey. We welcome your suggestions and feedback at support@nightdreamgames.com or in a review. Explore the open-source project on our GitHub repository: https://github.com/NightDreamGames/Graded Discover more of our creations on our website: https://nightdreamgames.com Stay informed about upcoming features and improvements: https://trello.com/b/kfWs3e3h Learn more about our privacy commitment: https://nightdreamgames.com/privacy
F-DroidGitHub
Gradr
APK
Allows students to simply and easily track their grades. Create classes and add grades for each of those classes. Each grade is created with a name and the point value it holds. With this you can calculate the percentage and overall grade for each class. Gradr also allows students to automatically predict how many points they need on their next assignment to get the grade that they desire.
F-DroidGitHub
Graph 89
APK
Emulate any of the following calculators: * TI89, TI89T * TI92, TI92+ * V200 * TI84+, TI84+SE * TI83, TI83+, TI83+SE No ROM images are included. You can extract one from your own calculator or if you have a physical device, download an OS upgrade image from TI. This is a fork of Graph 89 to support 64-bit OS architectures and the modern Android Storage Access Framework
F-DroidGitHub
Greek Reference
APK
Ancient Greek Lexicon & Syntax is an open source tool for students of ancient Greek. It contains a full, searchable copy of Liddell and Scott’s Intermediate Greek-English Lexicon, as well as the text of Jeffrey A. Rydberg-Cox’s Overview of Greek Syntax.Greek Reference is a complete, searchable, offline Greek lexicon featuring flexible lexicon search with instant search suggestions, Bookmarks for your favorite lexicon entries and Overview of Greek Syntax sections, and more.
GitHubIzzyOnDroid
GreenStash: Track Your Savings
APK
GreenStash is a straightforward, open-source, and privacy-friendly app designed to assist you in effortlessly planning and managing your saving goals, fostering the habit of saving money for better things. 🌟 Features / Highlights: • Clean and beautiful UI based on Google's Material-3 Design guidelines. • Add images to your savings goals to maintain motivation! • Monitor the daily, weekly, or monthly amount required to achieve your goal by the deadline. • Track detailed transaction history (withdrawals/deposits). • Receive daily, semi-weekly, or weekly reminders for your savings goals based on priority. • Supports approximately 100+ local currency symbols. • Built-in biometric app lock ensures the safety and security of your financial data. • Completely offline functionality; GreenStash operates without requiring internet permission. • Compatible with the Material You theme on devices running Android 12+. • Available in both light and dark mode.
F-DroidGitHubIzzyOnDroid
Grit
APK
Grit is a ToDo List and Daily habit tracker app that lets you visualize your progress.
F-DroidGitHubIzzyOnDroid
Groce
APK
Groce is a practical list app for everyday life: grocery shopping, to-do tasks, and packing for trips — all in one place, without distractions. Free. Open source. No ads. No analytics. No tracking. No account required. GROCERY LIST — SHOP BY AISLE The standout feature: define the aisles in your own store and assign each item to its aisle. Your shopping list is always displayed in aisle order — you walk through the store once, in order, never doubling back and never frantically scanning the list before moving to the next aisle. Once you've tried it, you won't shop any other way. Keep a full catalogue of items and use the "Needed" view to see only what you're currently out of. Mark staples as weekly recurring so they're easy to add back each week. TO-DO LISTS Create as many named to-do lists as you need, organised by category in your own order. Tasks can be marked recurring so they're easy to re-add each time you start fresh. PACKING LIST Pack for a trip without forgetting anything. Items are grouped by category in your chosen order — everything grouped logically, no hunting through the list. Recurring items (passport, charger, and so on) can be set once and reused for every trip. SHARING Share a grocery, to-do, or packing list with other users. PRIVACY All data is stored in plain CSV files on your device. This F-Droid build has no network access. Nothing is sent to any server. BACKUP Export and import your lists as CSV files from the Settings screen. The full version also supports automatic Google Drive backup.
F-Droid
Grocery manager
APK
* You can create an inventory of your pantry using this app * This app will remind you whenever an item is about to expire * You can check where did you put an item * You can check in the inventory before buying a new item
F-Droid
Grocy: Self-hosted Grocery Management
APK
Grocy Android is an open-source Android client for grocy (source code). Grocy is a self-hosted groceries & household management solution for your home. Grocy Android uses grocy's official API to provide you a beautiful interface on your phone with powerful barcode scanning and intuitive batch processing, all what you need to efficiently manage your groceries. This app requires a running self-hosted instance of the grocy server application. It is a companion app, therefore it cannot run standalone or manage products itself! You can try and test all features using the demo option available on the login screen. Features: Stock overview Shopping lists with offline support In-store shopping mode (big UI elements) Fast barcode scanning OpenFoodFacts implementation Master data editing Dark mode No ads, analytics or in-app purchases Contribution: If you run into a bug or miss a feature, feel free to give feedback in the app, send us an email or open an issue on GitHub. Like the grocy project, Grocy Android can be translated, too. Please go to our GitHub page for more information. Compatibility: Grocy Android requires at least Android 5.0 Lollipop on your device and grocy 3.0.0 on your server. It is also possible to use the grocy Add-on on a Hass.io server. Our in-app help explains how to do that. We'd like to thank the developer of Grocy, Bernd Bestel, without whose great work this app would never have been possible.
F-DroidGitHub
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Groestlcoin Wallet
APK
Have your Groestlcoins always with you, in your pocket! You pay by quickly scanning a QR code. As a merchant, you receive payments reliably and instantly. Groestlcoin Wallet is the first mobile Groestlcoin app, and arguably also the most secure! * No registration, web service or cloud needed! This wallet is de-centralized and peer to peer. * Display of Groestlcoin amount in GRS, mGRS and µGRS. * Conversion to and from national currencies. * Sending and receiving of Groestlcoin via NFC, QR codes or Groestlcoin URLs. * Address book for regularly used Groestlcoin addresses. * When you're offline, you can still pay via Bluetooth. * System notification for received coins. * Sweeping of paper wallets (e.g. those used for cold storage). * App widget for Groestlcoin balance. See the README for more details. Use this at your own risk and be wary that if you don't make a backup of the private keys you will no longer be able to access the Groestlcoins contained in the wallet, should the data of the app be lost.
F-DroidGitHub
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Groestlcoin Wallet TestNet
APK
Have your testnet Groestlcoins always with you, in your pocket! You pay by quickly scanning a QR code. As a merchant, you receive payments reliably and instantly. Groestlcoin Wallet is the first mobile testnet Groestlcoin app, and arguably also the most secure! * No registration, web service or cloud needed! This wallet is de-centralized and peer to peer. * Display of testnet Groestlcoin amount in GRS, mGRS and µGRS. * Conversion to and from national currencies. * Sending and receiving of testnet Groestlcoin via NFC, QR codes or Groestlcoin URLs. * Address book for regularly used testnet Groestlcoin addresses. * When you're offline, you can still pay via Bluetooth. * System notification for received coins. * Sweeping of paper wallets (e.g. those used for cold storage). * App widget for Groestlcoin balance. See the README for more details. Use this at your own risk and be wary that if you don't make a backup of the private keys you will no longer be able to access the testnet Groestlcoins contained in the wallet, should the data of the app be lost.
F-DroidGitHub
Grove
APK
Whether you're maintaining sobriety, breaking harmful habits, or building positive routines, Grove helps you stay focused on consistent progress. Watch your streaks grow, track meaningful milestones, and cultivate a forest of procedurally generated fractal trees that evolve alongside your journey. Every day of progress helps something beautiful take root.
F-DroidGitHub
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GrowTracker
APK
This app helps record data about growing plants in order to monitor the growing conditions to help make the plants grow better, and identify potential issues during the grow process. It requires no permissions except for external storage (for caching plant data and images) in order for users to maintain anonymity.
F-DroidGitHub
GuessIron
APK
Measure things with your mobile phone * Switchable scale direction (top, bottom or center) * Measure protruding objects * Measure objects of any length * Calibrate the scale with a ruler, card (e.g. credit card) or any other object * Store the readings * Restore measured values
F-DroidGitHub
Guessaday
APK
A trainer for calculating the day of the week of any given date. This app displays a random date and asks you what day of the week that date is. Then it checks your answer. Optionally it measures how long it took you. In the settings you can configure the range for the random date. If you want to learn how to do this calculation, check out on the developer's website!
F-DroidGitHub
Guileless Bopomofo Keyboard
APK
Hello, it's me, Guileless Bopomofo Keyboard. I have implemented most features of libchewing (https://chewing.im/), to provide you a choice of Bopomofo software keyboard (aka input method editor). * Unlike other similar products, though I don't have fuzzy, error-tolerance design, I do still have ability to predict possible phrases by context, and I do remember phrases from your typing history automatically. * Besides the most common "DaChen", I also provide you "Hsu", "E-Ten 26 keys", and "DaChen CP26" Bopomofo keyboard layouts. * I also support physical keyboard input with the same layout options, so you can use a consistent Bopomofo experience across virtual and hardware keyboards. My source code repository: https://github.com/hiroshiyui/GuilelessBopomofo
F-DroidGitHub
GuitarFretboardTrainer
APK
A very simple way to learn all the notes on the guitar fretboard by being quizzed. It's easy to add to your daily guitar practice. Pick the string you want to learn, which frets you want to learn the notes for and go for it! You can practice finding a note on a string. e.g. Find G# on the E string. The answer is Fret 4. You can practice answering what note is at a certain fret. e.g. What note is on the E string at Fret 5?
F-Droid