Productivity
1843 open source Productivity apps
Based Cooking
APK
Simple, ad free, open source recipe app. More than 200 recipes from based.cooking. Features filter recipes by tag search recipes
F-DroidGitHub
BasicCashFlow
APK
BasicCashFlow allows you to manage income and expenses in the simplest way possible. Why do I need it? The app is designed for those who simply want to keep track of cash flow, especially cash, without additional features and complications, such as managing credit cards, bank accounts or advanced financial instruments. Do you just want to track how you spend your cash? This is the right app for you. How it works The interface is designed to be simple and intuitive. To add a new transaction, simply click on the "+" button and fill in the form with the amount and a few words of description. With a simple swipe of the transaction, you can modify or delete it. If you want to change the currency, in the settings you will find all the currencies used in the world.
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Batch Uninstaller
APK
Batch Uninstaller allows you to uninstall multiple apps at once. If root permission is not available, you can still delete multiple apps a lot quicker than you can using the native android implementation. However, you will be prompted for each app uninstalled. Non Root users can not uninstall system apps. This is a limitation with the Android Operating system.
F-DroidGitHub
Bats! HIIT
APK
Bats! HIIT is a simple but useful High Intensity Interval Training timer. Workout structure A HIIT workout with Bats! HIIT comprises a sequence of alternating rest (warm up/cool down) intervals and work blocks. For example, a workout with two workout blocks will look like 1) warm up 2) block #1 3) rest 4) block #2 5)cool down Bats! HIIT always inserts rest intervals between blocks, and always includes a warm up and cool down interval. The length of the rest interval is configurable. By default, it is 60 seconds. Block structure A block is a series of work/break interval pairs; each work interval has a corresponding break interval. For example, you might configure Bats! HIIT to include 4 work intervals per block, with a 50 second work interval and 10 second break. Such a block would take 4 minutes. Audio and visual cues Bats! HIIT always gives a warning consisting of 4 short chirps when you're about to transition to a new interval. Every work interval begins with a single high-pitched beep; break intervals begin with a descending, two-tone beep. Rest intervals do not have an initial beep. During work intervals, your phone's screen will be green. In breaks, the screen will turn yellow. Rest is indicated by a red background. Your phone will also tell you how long is left in the present sub-interval and how many work/break pairs and blocks remain. Screen lock When you're exercising, you want to be able to see your progress without unlocking your screen. Bats! HIIT prevents your screen from turning off, though it does allow it to dim for power savings. This lets you know at a glance how you're doing. Save/recall workout You can save/recall/delete stored workouts. "Last workout" is automatically created whenever you do a workout, and is restored when the app is next started. Pause workout If Bats! HIIT loses focus during a workout, your workout will be paused and will resume when Bats! HIIT resumes. Delay locked loop To ensure that your workout is accurately timed, Bats! HIIT implements a feedback system called a delay-locked loop. Every second, when Bats! HIIT wakes up to update the timer readout, it measures how long it was actually asleep and adjusts future delay intervals to hit the target 1-second sleep interval. In practice, this reduces short-term timing errors from more than 5% to about 0.2%; since the error is integrated over the life of your workout, the overall accuracy is two to three orders of magnitude better than the short-term errors.
F-DroidGitHub
Batt
APK
Batt is a simple app that shows battery status information on Android devices. By default, it shows the number of charge cycles and the charge status. However, if the android.permission.BATTERY_STATS permission is granted (which can be done from the app itself if you have Shizuku), it can also show:the battery healththe battery manufacturing datethe battery first use dateNote that this app requires Android 14 to work. It just „targets“ a lower Android version to work around restrictions introduced with newer Android versions (blocking access to battery stats).
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Battery Charge Limiter (BCL)
APK
Battery Charge Limiter (BCL) is a fork of Battery Charge Limit whose development has been stalled for some time.This app is a work in progress and currently requires root to operate. If a feature is not working, do not hesitate to file a report.Features:Free and open source.Material 3 with dynamic colours.Control when to start and stop charging — either directly or via an widget.Set voltage threshold.Set custom battery control configuration if the supplied ones cannot be used properly.Same as ACC?ACC offers a broad range of features which might be too much for some people.TroubleshootingIf BCL cannot start or stop charging correctly, enable Always Write CTRL File in the settings.
GitHubIzzyOnDroid
Battery Dog
APK
Android Battery Dog is a watchdog application to facilitate long term analysis of the battery level. In addition to showing a graph of this information, the file “/sdcard/BatteryDog/battery.csv” is created containing the recorded battery levels together with a timestamp.
F-Droid
Battery Notification
APK
Always Free (No IAPs or Ads) and Always Open Source Persistent Notification Includes: Battery Level (Including Color Indicator for Android 5.0+)Battery Temperature (in Fahrenheit or Celcius)Charging StateBattery HealthCharging/Discharging Amperage (for Android 5.0+)Time Remaining Until Fully Charged or Discharged (Root/ADB Only for Android 5.0+) Required Permissions android.permission.RECEIVE_BOOT_COMPLETED - Used to restart the notification after rebooting the device Optional Permissions android.permission.ACCESS_SUPERUSER - Used to give the app the android.permission.BATTERY_STATS permissionandroid.permission.BATTERY_STATS - Used to access the BatteryStats object to get the time remaining until fully charged or dischargedandroid.permission.FOREGROUND_SERVICE - Used to keep a service in the foreground to instantly update the notification if the battery information changes
F-DroidGitHub
Battery Tile
APK
Battery Tile is an Android Quick Settings tile that allows you to display information about the battery on the tile, and allows for a long-press action to open the battery settings.The "Battery Saver" tile in Android 12 in below, when long-pressed, would open the battery settings page in Android Settings. With the introduction of Android 13, it no longer presents the battery settings page. Instead, it now opens the Battery Saver settings, removing this very useful shortcut. This app aims to restore said functionality with a custom Quick Settings tile, and additionally has since evolved into also incorporating customisation into the tile.
GitHubIzzyOnDroid
Battery Tool | Hibernate Unused Apps
APK
Battery Tool helps you save battery by stopping apps that are running in the background. You can select which apps to stop but keep in mind that you should not stop alarm clock apps, messaging apps, or system apps unless you do not rely on them. Additionally, you can activate aggressive doze mode to save even more battery. This app requires root access! I am not responsible for any damage to your device! Features - Force stop apps automatically - Aggressive doze - Quick tile - Shortcut Related Links Source code: https://github.com/Domi04151309/BatteryTool Website: https://domi04151309.github.io/Android/BatteryTool Icons8: https://icons8.com/
F-DroidGitHub
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BatteryBot
APK
Shows your battery charge level (percent) as an icon in your status bar, with temperature, health, voltage, and time since plugged / unplugged in the notification area. It also has user-configurable alarms, logs, and widgets.
F-DroidGitHub
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BatteryBot Pro
APK
Shows your battery charge level (percent) as an icon in your status bar, with temperature, health, voltage, and time since plugged / unplugged in the notification area. It also has user-configurable alarms, logs, and widgets. * Automatic time-remaining estimates based on recent usage * Several icon sets (including fully configurable green, amber, red, and black icons) * Small (1x1) and large (4x1) app widgets * Notification (with status bar icon) is now optional -- can be used as just a desktop widget * Battery logging. You can log the battery state (charge, status, voltage, temperature) and browse the logs on the phone or export to CSV. * Manually or automatically disable / re-enable device lock screen / lockscreen / keyguard * Alarms (full, charge above X, charge below X, temperature above X, or health failure) * Control the notification priority on Android 4.1+ (For example, you can set to "minimum" to hide the icon but keep the notification in the tray.)
F-DroidGitHub
BatteryFu
APK
Try to extend battery life by changing always-on mobile/wifi data to periodic sync (meaning it disables your mobile data and/or Wifi, then checks your accounts every X minutes). Requires Root on Android 5.0+
F-DroidGitHub
BatteryTemperatureDisplay
APK
BatteryTemperatureDisplay shows Android phone’s real-time battery temperature. The information is always visible in an icon in the status bar and in a notification, even while you use other apps. Practical uses of monitoring battery temperature: 🔥 Overheating detection during gaming or charging Li-ion battery degrades and loses its capacity when heated over 40 degrees Celsius for prolonged time. This can happen during gaming, 4K video recording, wireless charging. Set alarm to immediately get notified before battery gets actually overheated. 🧩 Prevent solder cracks under phone's processor Battery is the main channel for phone's process to dumpits heat. When your battery gets over 40 degrees Celsius under heavy load of gaming or video recording, phone processor is melting itself at that moment. Repeated cycles of processor overheating cause its solder to crack, leading to phone unable to boot and work. ⚠Reduce risk of phone li-ion battery fire Reaching 50 degrees Celsius may lead to li-ion thermal runaway and fire. Set an alarm to get alerted before your battery reaches this dangerous threshold. That is especially valuable if you leave your phone charging overnight, alowing to avoid cases of phone getting on fire while everyone in the house sleeps. 📊Use old Android as temperature logger Repurpose your old smartphone as temperature logging device to track the environment in your home, 🌱 greenhouse or 🐕 animal barn. Temperature fluctuations affect plant and animal health before they show visual stress signs. Log temperature for any time range - set if for minutes, hours, days, months. Temperature log is produced in timestamped CSV format, allowing for easy analysis in Excel, Google Sheets or any other spreadsheet editor. 🏃Heat stroke prevention During outdoor work or sports, let your phone to work as a body temperature monitor. If your phone reaches +40 °C in your pocket, you're in conditions that can cause heat exhaustion. ❄Body heat conservation Avoid excessive heat loss in cold weather. Phone placed against body shows how effectively your clothing retains heat during cold emergencies. 🚗Hot car safety Phone temperature rise in parked car indicates when interior becomes dangerous for children or pets - provides quantified warning beyond "it feels hot." 🥶Food safety monitoring Place your phone in a cooler during camping or power outages to know your food is safe. If the battery temperature rises above +4 °C, your food is entering the danger zone for bacterial growth. 🛏Bed assessment Place your phone between bed sheets and launch temperature logging. The log may highlight your bedding retains too much heat, affecting sleep quality and suggesting bed sheets material changes. 🏠Know heat insulation problems Phone temperature varying dramatically in different parts of your house reveals insulation issues. Rooms with poor insulation will cause your phone to heat up or cool down faster. 🌡Poor man's thermometer Track ambient temperature of any room with your phone if no dedicated thermometer is available. The Android Battery Temperature app is a tool for anyone who wants to monitor, log, and act on temperature data using nothing more than your own smartphone. The app can be both a safety instrument and a multi-purpose temperature monitoring solution. Created by Eugen Barilyuk EB43 https://eb43.github.io
F-DroidGitHub
BatteryVoltageDisplay
APK
BatteryVoltageDisplay shows Android phone’s real-time battery voltage. The information is always visible in an icon in the status bar and in a notification, even while you use other apps. Practical uses of monitoring battery voltage: 🔋 Check battery real health Spot signs of battery degradation. Watch for sudden or irregular voltage drops—these are early signs that the battery is degrading. 🔌 Catch bad chargers or cables During charging, voltage should rise smoothly (e.g., 3.7 V → 4.2 V). If it stays flat or jumps irregularly, the cable or adapter is likely defective. 💀 Avoid unexpected shutdowns Monitoring voltage lets you see the exact point where the phone shuts down from low battery. Helping you avoid surprises like the device shutting down at 30% charge. 📈 Save money on unnecessary battery replacement Monitor battery’s voltage to know its true health and decide a battery replacement only when it is actually needed. ⚠️ Prolong battery lifespan Batteries experience high stress when charged to their maximum voltage, which often happens before the charge indicator shows 100%. By monitoring voltage, you can unplug your phone at the optimal point to reduce stress and extend battery life. 🔎 Evaluate aftermarket replacement battery capacity Quickly know a replacement battery’s quaity. A good battery holds stable voltage under load, while a poor-quality battery drops quickly under use and spikes sharply when charging. The Battery Voltage Display app is a tool for anyone who wants detailed insights into their Android smartphone’s battery health. Key Features: - User-Friendly Interface: Designed with simplicity in mind, ensuring easy navigation and quick access to vital battery data. - Automatic Startup Support: Enables continuous monitoring without requiring manual app relaunches after a reboot. - Resource Efficiency: The app operates with minimal RAM usage, ensuring it does not interfere with system performance. - No Hidden Processes: Unlike many background apps, it does not run covert services, preventing unnecessary battery drain. - Manual Exit Functionality: Allows users to completely exit the app with a single button press, ensuring full control over system resources. - Ad-Free Experience: The app is entirely free to use without any intrusive advertisements disrupting the user experience. - Wide Compatibility: Works seamlessly on devices running Android 8 and newer versions. Created by Eugen Barilyuk EB43 https://eb43.github.io
F-DroidGitHub
Bazarnote
APK
Bazarnote is a simple note taking app geared toward shopping lists. It only keeps minimal information about items being bought offline. When going to a shop or bazaar, Bazarnote helps you keep track of all the items on your shopping list. It is a simple offline application. Just open the app, input your shopping list, keep track of your products, and that's all.
F-DroidIzzyOnDroid
Be nice
APK
Be nice is a slick, beautiful Android launcher built with Jetpack Compose.While it started as a tool to launch apps in split-screen mode to avoid forced rotation on tablets and foldables, it has evolved into a full-featured home screen replacement.Key Features:Modern Design: Built entirely with Jetpack Compose and Material 3 Expressive for a smooth and responsive experience.Split-Screen Utility: Launch apps adjacent to Be nice to multitask effectively and prevent unwanted screen rotation.App Pairs: Create shortcuts to launch two apps side-by-side instantly.Folders: Organize your apps into groups to find them easier and faster.Smart Organization: Hide apps added to folders for a cleaner look.Widgets: Add your favorite widgets for quick info.Whether you need a full replacement for your home screen or just a better way to multitask, Be nice adapts to you.
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BeWell
APK
This app measures your HRV and track your health. HRV method becomes more popular only in last ten years, however it was created in USSR to track astronauts' health.
GitHubIzzyOnDroid
Beacon Locator
APK
Scan, locate and track Bluetooth LE beacons (Eddystone, iBeacons or AltBeacons) allows you to define actions that will be triggered when a specified event occurs. These events are supported: * Beacon enters a region (beacon in range) * Beacon leaves the region (beacon is out of range) * Beacon is near you For each event you can define unlimited number of actions : * Start an application * Open url * Get current location * Broadcast intent action * Set Normal / Silent mode * Execute tasker action (http://tasker.dinglisch.net) for unlimited action possibilities For example, you may set a silent mode entering your bedroom...and set normal sound profile leaving it. Additional information is supplied in the help section of the wiki.
F-DroidGitHub
Beans
APK
Beans is a scratchmap of the world for Android.Keep track of your discovery of the world on a colorful visual map.Color a map of places based on custom labelsCountry/State based coloringSingle/Multi color modesDifferent map projections availableSmall & FastStatistics (WIP)100% Free and Open Source software, with no proprietary dependencies
GitHubIzzyOnDroid
BeatInspector
APK
BeatInspector is meant to help music producers analyze other tracks for remixing, referencing etc. by displaying relevant data about them, namely their BPM, key, genre, time signature, and average loudness. Requires authentication with a Spotify account (Spotify App not required).
GitHubIzzyOnDroid
BeepMe
APK
BeepMe is an app for the conduction of experience sampling (ESM/DES). Once activated the app sends out beeps at random times. You can enter notes, tags and a photo regarding your inner experience at the moment of the beep. This data can then either be used in interviews (DES) or being collected directly (ESM).
F-DroidGitHub
Best-Before
APK
NOTE: App is no longer developed, source repo has been archived. Features: * add, edit and remove products * save best-before date * search through products * data import and export Supported languages: * English * Czech * Danish * Dutch * Finnish * French * German * Hungarian * Polish * Portuguese (BR) * Spanish (AR) * Turkish * Ukrainian Wiki: You have questions, need help to set up the app or simply want to know more about it? Then take a look at the Wiki. Licensing: Licensed under the EUPL-1.2. OpenSource: This app is open source. Many thanks to all contributors. Icons: Icons by Google licensed under Apache License 2.0.
F-Droid
Better Bluetooth device sort
APK
This Xposed module sorts Bluetooth devices by name instead of last connected to get a stable order. Takes effect in the settings app and the media device picker.
GitHubIzzyOnDroid