Productivity

1843 open source Productivity apps

Internet Helper for Gadgetbridge
APK
This app provides an interface to Gadgetbridge for HTTP/FTP transfers and WiFi control. It functions mostly like a low-level proxy. Gadgetbridge is in control of what is requested and what is shared. It uses a "dangerous permission" for making sure the Gadgetbridge user makes an explicit decision to allow/disallow usage of this helper.
F-DroidIzzyOnDroid
Interval Timer
APK
An interval timer designed for HIIT workouts. Set your active and rest time, and hit go. Simple and easy-to-use.
F-DroidGitHub
Interval Timer (Privacy Friendly)
APK
Privacy Friendly Interval Timer supports the user during his/her circuit training session and helps him achieve his/her training goals. In order to support the user during his training, the app provides stopwatches, which can be configured according to the user’s own training and resting phases. In addition, the app reminds the user of previously defined training sessions via a notification. To check the user’s goals and to recognize training progress, the app offers the possibility to retrieve statistics about the training times and the calories burned in a daily, weekly or monthly overview. This app is part of the Privacy Friendly Apps group developed by the research group SECUSO at Karlsruhe Institute of Technology. How does Privacy Friendly Interval Timer differ from other similar apps? 1) Minimal permissions Privacy Friendly Internval Timer requires the persmission "Run at startup" to automatically restart the motivation notifications when the phone reboots. For comparison: The Top Ten similar apps from the Google Play Store, require an average of 9,1 permissions (September 2017). These are for instance the permission to access accounts, permissions to access, modify or delete storage and access to networks or the internet. 2) No advertisement Moreover, Privacy Friendly Ludo distinguishes from many other applications in the way that it completely relinquishes advertisements. Advertisement might track a user's actions. It could also shorten battery life or use mobile data. 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
Inure App Manager (Trial)
APK
Inure is a powerful open source applications manager and analyzer with a good-looking and easy to use interface. This app can be used to manage all apps installed in the device, in addition to that Inure allows you to access all the core components of the app including services, activities etc. and modify them on the go. All that combined with a gorgeous and pleasing interface, with every tap accompanied by fluid animations. Features - Organized list of all apps - Usage stats of all apps - Create notes for specific apps - Terminal Emulator with commands manager - Sensors information - Scan for trackers in any app - Inbuilt device information panel - App information panel - Uninstall, disable, force close user/system app (with and without root) - Dedicated app's component viewer and editor - Clear data and cache of any app - Grant or Deny permissions for any app - Root and Shizuku API support - Manage per-app battery optimization and boot processes - Block trackers in any app - AppOps manager for any app - Scan apps using VirusTotal Extra Capabilities - Audio player - Preview any TTF format font - Image viewer - Inbuilt text viewer and editor - Markdown viewer - HTML support - Pretty code highlighting support for some programming languages - XML pretty printing and highlighting - SVG support UI Features - Full-screen with status and navigation bar - Beautiful unique interface - Smooth animations for every element of the app - Interconnected interface by icons and shared animations - Universal accent color picker - Ability to change font style of the app - Rounded corner support - Pleasing colored shadows for every layer of the app - Glowing app icons effect - Unique switch style - Native theme engine to support all dark and light modes - AMOLED, Slate, Grey and High Contrast dark modes - Monet color palette support Trial The full version of Inure is available to try for 15 days, all the features of the app will continue to work except a few of the trial features will be disabled after the period has ended. You can unlock the full version by purchasing the Inure Unlocker. Note Inure has reached stable stage, but there maybe some unknown bugs. I am actively developing this app and would love to hear feedback, ideas and general discussions about the app. You can submit your feedback on GitHub Discussion or join Telegram Group for the app (Recommended).
F-DroidGitHubIzzyOnDroid
Inventory
APK
Inventory is a simple app to manage electronic your components. Features: - Scan QR Codes from components to import or open parts - Track inventory of part - Search parts and quickly open their datasheet
F-DroidGitHub
InventoryGUI Mobile
APK
Simple Inventory Application.
F-DroidGitHub
Invoice Ninja
APK
200,000+ businesses trust Invoice Ninja. And it's 100% free! Create invoices, track payments, vendors, expenses, and time billable-tasks & projects. * Invoicing, Quotes, Credits, Payments * Product Library, Client Management * Project & Task Management, Time-Tracking * Full Persistence, 2FA, Google Login Pro & Enterprise Highlights * Unlimited Clients, Invoices, Quotes * Email invoices & quotes via your Gmail account. * Attach & embed 3rd party files to client invoices & emails Intuitive business dashboard * View revenue, invoices sent, recent activity data. * Track upcoming invoices, invoices past due, more. Invoice Clients in seconds * Create clients and send an invoices in seconds. * Create subscriptions, recurring invoices, payment profiles. * Send Invoices & quotes directly via your Gmail account. * Product library system to quickly populate invoices & quotes. Clients pay faster * Accept credit cards, ACH payments, PayPal, & more. * Clients pay directly from their invoice with the click of a button. Notifications keep you up-to-date * Receive app and email notifications when client view or paid. * View instant data updates when payments are made. * Automate payment reminders & past due notifications. Time-tracking, Tasks, Kanban Boards * The feel of desktop software but with the power of a web-based app. * Create projects, time billable-tasks, monitor progress in kanban boards. Integration Platforms * Streamline workflow with Zapier, Integromat & more. * Self-host integrations with Digital Ocean, Cloudron, Softaculous & more. Download the Invoice Ninja app today and start invoicing clients & get paid! Self-hosting? Invoice Ninja is 100% source-available! * GitHub: https://github.com/invoiceninja/admin-portal Terms of Service: https://www.invoiceninja.com/terms/ Privacy Policy: https://www.invoiceninja.com/privacy-policy/ GDPR Compliance: https://www.invoiceninja.com/gdpr/
F-DroidGitHub
Ion Launcher
APK
Productive: Ion Launcher shows you relevant information on the home screen when its needed, and organizes the app drawer into categories automatically Easy Customization: Customize your home screen fast, by changing only a handful of settings, like foreground and background colors Ergonomic: Elements are arranged in an optimal way for muscle memory and reachability Elegant: The design does not take a back seat in this launcher, the default setup looks great, and you can make it look even better with a couple adjustments Lightweight & fast: Ion Launcher is made to take up as little storage space as possible (within reason)
F-Droid
Isotope Browser
APK
Provided by the Nuclear Data Section of the International Atomic Energy Agency, Isotope Browser gives properties of more than 4 000 nuclides and isomers.A Chart of Nuclides, with zooming and tapping enabled, and a Periodic Table of Elements are included to allow easy selection and navigation.Filter criteria on half-life, decay mode, radiation type and energy can be selected.Summary data are presented in a scrolling list, with a details page for each nuclide containing web links to the data sources and further information.The filtered nuclides can be visualised on the Chart of Nuclides.Data are taken from the most recent and reliable sources, and optimal search-and-retrieve performance is achieved with an embedded database, meaning that no network connection is required.
GitHubIzzyOnDroid
Isotopes
APK
Isotopes is an app with more then 3000 isotopes, both natural and synthetic, including accurate mass information and natural abundance.
F-DroidGitHub
Itinerary Planner
APK
Itinerary Planner is designed to make your travel planning easier and more productive. Features: * Plan Management - Create, view, and manage multiple travel itineraries * Task Scheduling - Add tasks with start/end times and duration * Cost Tracking - Track expenses for each activity and overall trip budget * Open-source - The source code is distributed under GNU GPLv3 * 100% free and No ads - We do not charge any fee or sell ads Source Code: The source code is available at the following GitHub repository: [https://github.com/pixelarry/itinerary_planner]
F-DroidGitHub
IzzyOnDroid (unofficial)
APK
IzzyOnDroid is an unofficial client for IzzyOnDroid F-Droid Repository. Features - Elegantly designed user interface. - Option to categorise applications. - Includes an in-built APK installer. - Update notification service. - Dark/light themes. - A lot more.
F-DroidIzzyOnDroid
J-K Bike - Mechanical Disaster Prevention
APK
We have all experienced those rides where something mechanical happens that really was preventable. As the authors, even though we take a certain pride in our own efforts in maintaining smooth running MTBs, and a disdain for our riding buddies who never give a passing thought until something goes 'CRUNCH!' in a ride-ending manner, there are still innumerate situations where something that should have been checked, or usually never needs checked after proper installation, has not been. 'Where is that vibration coming from?', 'why is the rear end creaking?', 'What is that terrible knocking?' are so often result of something relatively simple being overlooked or forgotten. Recent favourites have been disc rotor bolts backing out, rear thru axles not done up properly, and headsets improperly tensioned. So, to prevent mechanical disasters happening on your rides, use this app to build better, new, habits and ensure your rides are (mechanically) glorious. The app can connect ot Strava and update mileages/distances as well as last ride dates. This app uses INTERNET and ACCESS_NETWORK_STATE permissions to download template activities from a github repository at https://github.com/janexner/JKBikeTemplateActivities, and to retrieve data from 3rd-party integrations, currently with Intervals.icu only. No internet access beyond that.
F-Droid
J
JABtalk
APK
JABtalk is a free speech communication application designed to help non-verbal children and adults communicate. Speech therapists commonly refer to JABtalk as an easy and effective augmentative and alternative communication (AAC) device. By combining personalized voice and images with an extremely simple user interface, JABtalk delivers a speech solution that is both fun to use and easy to learn. Originally designed as a communication tool for children with special needs, JABtalk has evolved into a communication tool used by special needs children, stroke patients, toddlers, speech-language pathologists, and others.Some of JABtalk features include…Navigation designed to be intuitive for toddlersBuild sentences from wordsOrganize words into user-defined categories for simple navigationHeptic feedback (vibration) when touching a word or category for immediate physical feedbackAbility to rearrange and resize picturesDownload unlimited number pictures from internet directly into JABtalk!Ability to capture pictures directly from your device’s cameraAbility to import pictures from your device’s memory cardAbility to record your own audio for words using your devices microphone.Ability to import audio files from a memory cardSupports text-to-speech if you don’t want to record or import your own audio filesEasy to use passcode protected administrative tools for managing words and categoriesFullscreen mode to prevent kids from easily exiting appEasily backup/restore your data to preserve your changes or move your entire dataset to a different deviceOnline tutorials at https://www.jabstone.com/videosIf you are using JABtalk as an AAC device for an individual with special needs (down syndrome, autism, etc...), we strongly recommend having the individual assessed by a speech-language pathologist to ensure JABtalk is the most appropriate solution for the the individual’s needs.
GitHubIzzyOnDroid
J
JKU App
APK
This is an app for the students of JKU Linz that provides most of the data from KUSSS and also information from ÖH and the JKU in general: * synchronize timetable with local or Google Calendar. * access Exams, Grades, Courses. * get notifications for new exams, grades and changed course dates * included campus map for "navigation" * shows menu for JKU Mensa, Raab Mensa and KHG Mensa
F-DroidGitHub
JMdict droid
APK
Search for English definition of Japanese words using kanji, kana or rōmaji. Search for Japanese words from their English definition. Basic wildcards are supported, to search for incomplete words, words ending with a specific kanji, etc. JMdict data is not included in the APK. It must be downloaded (or loaded from a file) from the application first. Afterwards, the application is completely standalone and can be used offline. JMdict is provided by Electronic Dictionaries Research Group. See https://www.edrdg.org/
F-DroidGitHub
JRBP Survey
APK
The Jasper Ridge Biological Preserve ant survey regularly surveys the species of ants in each of hundreds of locations across the preserve. This application helps people navigate to the correct locations, identify ants, record observations, and upload them to a central database. Note: This application is intended only for registered volunteers participating in the ant survey. For more information about the ant survey, see https://jrbp.stanford.edu/research/jrbp-ant-survey .
F-DroidGitHub
JRPN 15C
APK
JRPN 15C is a scientific calculator that simulates an HP-15C. It simulates the appearance and behavior of the original, including the seven-segment display, and the little blink you get when entering numbers. Includes complex math, matrices, numerical integration, solving for the root of an equation and statistics. Very state of the art for 1982!
GitHubIzzyOnDroid
JRPN 16C
APK
JRPN is a programmer’s calculator that simulates an HP 16C. It simulates the appearance and behavior of the original, including the seven-segment display, and the little blink you get when entering numbers. The 16C’s windowing functions are implemented, but can be disabled to allow the display of longer numbers at one time.
F-DroidGitHubIzzyOnDroid
JS-Dict
APK
JS-Dict is a convenient app for accessing the powerful Japanese-English dictionary Jisho.org. This app is Free and Open-Source Software. The source code is available at https://github.com/petlyh/JS-Dict.
F-DroidGitHub
JSlab
APK
The author was in need of a more capable calculator app than what's included with Android. After finding none that pleased him he made one himself. Javascript is turing complete, WebViews provide javascript and the eval() function. Thusly JSlab was created.
F-DroidGitHub
Jamu
APK
An app to help learn Japanese. Features Gojuon (五十音) Numbers (数字) NHK Easy News Quiz
F-DroidGitHub
Japanese Traditional Time
APK
A clock widget based on the traditional Japanese time system. * Widget showing the current hour (named after an animal) * Mapping of traditional time to local time * (Eventually) Alarms based on traditional time The sunrise and sunset times for are calculated locally by the app for the current location; if the device doesn't know that you can enter a manual one.
F-DroidGitHub
Java OOP Quiz
APK
Java OOP Quiz App is an interactive mobile app designed to help users test and improve their knowledge of Object-Oriented Programming (OOP) concepts in Java. It features a variety of quizzes that cover essential topics like classes, inheritance, polymorphism, and interfaces, with immediate feedback to enhance learning. The app includes a smooth user interface and progress tracking.
F-DroidGitHub