Productivity
1843 open source Productivity apps
SuperFreezZ: App stopper
APK
Android app making it possible to entirely freeze all background activities of any app. A note to everyone who was supporting SuperFreezZ over the years: SuperFreezZ was my first "real" programming project, and I was incredibly happy about strangers donating to me and translating the app into languages I never heard of, and all the positive feedback I received. My start into the world of free and open source software couldn't have been better. It is hard to imagine now that back in 2018, when I made my first commit, I barely knew how to program at all. I didn't know where to start, so I just forked an app called "APK Extractor", and started finding out. I learned how to organize a (small) codebase, how to interact with a small-but-supportive community, and how to stay focused when there are lots of nice features that could be implemented. But the time has come to slowly wind down SuperFreezZ. These days, Android devices make it harder and harder for an app like SuperFreezZ to work properly. Also, Android devices are anyways restricting the amount of time an app is allowed to run in the background, making an app like SuperFreezZ less essential (without giving the user control over it, though). Myself, I am mostly busy working on other projects these days (mainly "Delta Chat" and "Chatmail"). It's not over yet, though! If you have an old and slow phone, or if you like that SuperFreezZ gives you control over which app runs and which does not, then enjoy. And who knows, maybe one day, I will revisit this first project of mine, adding more of the features that were asked for over the years, or maybe someone will fork it. If SuperFreezZ does not work for you, here are a few alternatives I found on F-Droid (though I can't personally vouch for them): "Force Stop Helper": Similar to SuperFreezZ, with less features but still maintained, and you need to press "Force Stop" by yourself "Drowser": Uses Root to prevent apps from running in the background "Shelter": Allows you to isolate apps (and optionally to keep them from running in the background), but requires some extra storage to work Thanks again for being part of this! If you want to try out SuperFreezZ, here you go: SuperFreezZ Get back control over what runs on your phone Enhance battery life and reduce mobile data usage by freezing rarely used apps Especially useful while you are on a tour, where you need only some apps but a long battery life Greenify can also do this, but it is not Open Source. SuperFreezZ is not yet another task manager promising to delete 10 GB of data per month or making your device 2x as fast. This is impossible. Instead, SuperFreezZ is honest about its disadvantages: Freezing daily used apps probably drains your battery a little faster. Also, these apps will take longer to start when you use them the next time: SuperFreezZ will super freeze your apps, it takes about 1-3 seconds to un-freeze them. Greenify has the same disadvantages, except that the author of Greenify does not warn you about it. So: Just do not overdo it, and SuperFreezZ will be super useful. Examples for apps that deserve to be frozen: Untrusted apps (that you do not want to run in the background) Apps you rarely use Annoying apps Features Optionally works without accessibility service as this slows down the device Can freeze only apps not used for a week (can be configured) Choose a white list (freeze all by standard) or a black list (do not freeze anything by standard) Can freeze apps when the screen goes off Options to freeze system apps and even SuperFreezZ itself Completely open source and free software
F-Droid
Sushi - Personal Finance
APK
An open source mobile application to help you easily manage multiple wallets and record transactions. From expenses like Groceries, Online Shopping, Subscriptions, for your savings and income, and even wallet transfers... you can list them on Sushi. Manage your personal finances with Sushi.
F-DroidGitHub
Swatch .beat clock
APK
Are you tired of the boring old 24-hour format? Could you use some change in your life? Let me introduce you to the Swatch Internet Time format! Instead of dividing the day into 24 hours, it divides it into 1000 .beat's. 6:00 AM becomes "@250", 11:27 PM becomes "@977" and so on! In addition to that, there are no timezones in Internet Time. It's the same all over the world. It's based on Biel Mean Time (BMT), similar to Central European Time (CET). Of course, getting used to this new format might not be easy, and even when you learn it, you will still need a .beat clock. That's where the Swatch .beat clock app comes into place. With a handy converter and a fully functional digital clock, it will help you through your journey. Read more about Internet Time on Wikipedia.
F-Droid
SwatchIt
APK
SwatchIt helps you to manage your knitted swatches, so that you have more time to concentrate on the fun parts of knitting. The app runs entirely locally and offline. Detailed usage instructions and the story behind the app can be found on my blog.
F-Droid
Swiss Bitcoin Pay
APK
The simplest way to accept Bitcoin payments in your Business, restaurant, bar, and others. So simple to use: 1. Type the amount in your local currency. 2. Client scan the QR or tap a Lightning NFC Card. 3. Paid. Maximum compatibility: Through the same screen, receive in: Bitcoin On-chain Lightning Lightning-NFC cards Non-custodial: After clients have paid through Onchain and/or Lightning, the Lightning-BTC will be converted to Onchain-BTC (free of charge) and will all be sent to your private wallet (free of charge), as configured in your account. You charge 100$, you receive 100$.
F-DroidGitHub
S
Switch My Slot
APK
Switch My Slot is an Android app that helps you switch between android A & B slots easily without having to enter commands in adb or fastboot shell. You don't even need TWRP recovery to use it.Requirements:Device with A/B partitionsDevice platform should be ARM64Root access on android deviceIf you are using MagiskSU flash this module to mount the bootctl utility.
GitHubIzzyOnDroid
SyncOnWifi
APK
Ever had an account on your android device that you want to sync only when you're at home? Ever wished you could have your work email stop synchronising when you leave the office? SyncOnWifi handles this for you. It automatically switches synchronisation of your account on or off, depending on the WiFi network you are connected to. The following permission are required: * WiFi / network status to react to WiFi network connecting / disconnecting. * Contacts / Accounts access to read which accounts there are on your device. NO contact data is accessed. * Read / Write synchronisation settings to allow automatic synchronisation switching.
F-DroidGitHub
SyncTool
APK
Synctool can synchronize data between an Android smartphone and a server with FTP and ownCloud. Features Targets * Local Files * Owncloud * FTP Directions * From A to B * From B to A * Both Directories Strategies * Copy new files * Mirror * Copy new files in a folder with actual data * Copy all files in a folder with actual data * Move File * Move in a folder with actual data * One side wins * Date check Trigger * Trigger daily on selected time
F-DroidGitHub
SyncWifi
APK
Automatically disable or enable the synchronisation of existing account authorities based on connection state, wifi or mobile connection. Good to sync only important authorities (e.g. emails, calendars, notes) on mobile data and other ones only on wifi connection.
F-DroidGitHub
Synology Active Insight
APK
Direct
S
Synology Bee Drive
APK
Direct
Synology Bee Station Drive
APK
Direct
SysLog
APK
Records various log types and compresses them as a zip file. The logs are saved in the application's private cache directory named by the date and time. You can access the zip files through the system document picker - Select the SysLog app to view collected log zips. Log types supported: * Kernel logs (dmsg) * Last kernel log (last_kmsg, if device supports it) * Main log (Logcat) * Modem log * Event logs * SELinux audit logs To enable access to some logs (Logcat and Radio) to SysLog, you will need to grant the READ_LOGS permision using a computer with ADB. From a command line with adb available, you can grant the READ_LOGS permission via the following command: adb shell pm grant com.tortel.syslog android.permission.READ_LOGS This command tells the phone's package manager to grant the READ_LOGS permission to SysLog.
F-DroidGitHub
Sysctl GUI
APK
SysctlGUI is a Android application designed for power users, developers, and enthusiasts who want to fine-tune their device's performance by directly editing kernel parameters.It provides a user interface for the sysctl command-line utility, making advanced kernel tweaking accessible and manageable.Features:Easily browse the filesystem or search a comprehensive list to find kernel parameters, with in-app documentation to help you understand their impact.Automatically reapply your chosen settings on every boot.Save and load sets of parameters from configuration files, making it simple to switch between different performance profiles or share your setup.Mark frequently used parameters for quick and easy access.Automate the application of kernel parameters in response to specific events using Tasker.
GitHubIzzyOnDroid
T CrB Detector
APK
T CrB Detector notifies the user when the star T Coronae Borealis has exploded, and it also displays the current magnitude of the star at any moment. It is perfect for stargazers who are waiting patiently for this explosion.
F-DroidGitHub
T-UI
APK
Launcher, which emulates a unix-like shell and its terminal interface, that is adpated for the use on mobile devices. It also implements a lot of commands. Installed application can be launched simply by typing their name. T-UI uses the CompareString library, so it will know what you're meaning although you made typing errors.. Features * all GNU Core Utilities shell terminal commands * Suggestion Bar * T-UI innovative commands * aliases, a few characters which contain entire commands, that you can use in every moment * double tap close the screen * music player * fullscreen mode * completely customizable * useful file view to keep your files under control Some useful comands * search: search something you want in your Browser or Play Store * flash: toggle flashlight * play/next/listen: music player commands! * uninstall/install: uninstall an applications, or install one from an apk * call: call someone, by its number, or its contact name * move/cp/mkdir: move or copy a file, or create a folder Notes for Android 6 You have to manually allow permissions.
F-DroidGitHub
T16Fling
APK
T16Fling is an Android keyboard with 16 keys in a 4x4 grid (similar to the AOSP numeric keypad) that works by flinging each key in the direction of the desired character. Once installed you must enable the keyboard in your Android Settings (System -> Languages & input -> Virtual keyboard -> Manage keyboards). Each key has one main character (shown in a larger and darker font on the left) and one or more secondary characters (shown in a smaller and lighter font on the right). Depending on the gesture you use on the key it will produce different characters: - When tapped, a key will produce its main character. - When flinged (swiped quickly in a direction) a key will produce the secondary character that is in that direcion. - When long-pressed, new keys will appear with extra characters related to those on the main key. Tapping on any of these keys will produce the corresponding character. For example, the second key in the first row (with a large "2" on the left and "abc" on the right) will produce a "2" when tapped, an "a" when flinged left, a "b" when flinged up, and a "c" when flinged right. When long-pressed it will show new keys "á", "à", "â", "ä", "ã", and "ç". There are some exceptions to these rules: - The "0" key only has one secondary character, which is space. No matter which direction you fling it, it will always produce a whitespace. - The shift key (⇪) has two special functions associated to its fling: when flinged up it will turn on Caps Lock, and when flinged down it will turn it off. - The backspace key (⇦) and the enter key (➡) always do the same thing, no matter if you tap them or fling them.
F-Droid
T4 Launcher
APK
Simple launcher consisting of a scrollable list of apps with predictive text filtering using 4 buttons. - short press launches app - long press opens app settings - back button removes last input - home button clears input - long press back button reloads list Example for input [A_F][A_F][S_Z][S_Z]
F-DroidGitHub
TKCompanionApp
APK
Goal of this app is to be a practical vademecum/handbook for those interested in applying scientific thinking through Toyota Kata. It contains the Coaching Kata 5Q card, plus (possibly) more things and information. Content to be improved and updated from time to time.
F-Droid
TOTALOG
APK
Simple FLOSS Ham Radio logging app for small contests and portable operation. 11 12 Features include: 13 * logging QSOs 14 * edit logged QSOs afterwards 15 * archive and manage different QSO lists 16 * export and share QSO lists as cabrillo 17 * dark mode
F-DroidGitHub
TSCH_BYL
APK
Program to estimate the consequences of radioactive pollution after a nuclear power plant accident. The starting point is the measured radioactive contamination of the air, as measured when it reaches the affected area first. From this, the radiation exposure from direct radiation, soil radiation and food intake is estimated. Then the risks are analyzed and behavioral measures are derived.
F-Droid
TTL Changer
APK
A simple application that allows you to change the TTL (Time to Live) value. Features included: * Read-write TTL value * Enable IPv6 support * Apply last written value on device boot * Add one-tap widgets The app requires root access to work.
F-DroidGitHub
TTS Tool
APK
TTS Tool is a simple app to read out texts by the mostly pre-installed text-to-speech (text.to: speech) output on your smartphone.The output language, the speech rate and the pitch (pitch) can be configured in the app.Furthermore, you can also send texts directly to the TTS Tool ("share") to read longer texts out to you. (Attention: The text-to-speech output may be determined by the system a maximum length of the text!)The talking text can also be shared as an audio file (* .wav) with other apps.Hint: I’ve seen reported this might solve the TTS issue with OsmAnd on some devices.
IzzyOnDroid
TTime
APK
Simple android app to calculate : - Transfer time from data quantity and bandwidth - Data quantity from transfer time and bandwidth - Bandwidth from transfer time and data quantity
F-DroidGitHub