Productivity

1843 open source Productivity apps

OpenWebWeaver
APK
OpenWebWeaver allows you to interact with WebWeaver based online leaning platforms. Credentials provided by your institution are required in order to use this app. Tasks Read, edit and create tasks Board notifications Read, edit and create board notifications Contacts Read, edit and create contacts Notes Read, edit and create notes Messenger Send and receive messages Mail service Send and receive emails File storage Upload and download files from file storage System notifications View system notifications Forum Read forum posts and comments
F-DroidGitHub
Openlib
APK
Openlib is an open source app to download and read books from shadow library (Anna’s Archive). The App Has Built In Reader to Read Books. As Anna’s Archive doesn't have an API, the app works by sending requests to Anna’s Archive and parses the response to objects. The app extracts the mirrors from the responses, downloads the book and stores it in the application's document directory. Note : The app requires VPN to function properly . Without VPN the might show the captcha required page even after completing the captcha Main Features: Trending Books Download And Read Books With In-Built Viewer Supports Epub And Pdf Formats Open Books With Your Favourite Ebooks Reader Filter Books Sort Books
F-DroidGitHubIzzyOnDroid
Operator
APK
Sort processes by CPU usage, memory usage, PID, or process name. Kill processes with precision. View detailed process information.
GitHubIzzyOnDroid
Orgzly Revived
APK
Orgzly Revived is an outliner for taking notes and managing to-do lists. You can keep notebooks stored in plain-text and have them synchronized with a directory on your mobile device, SD card or over WebDAV. Notebooks are saved in Org mode's file format. “Org mode is for keeping notes, maintaining TODO lists, planning projects, and authoring documents with a fast and effective plain-text system.” See orgmode.org for more information. Features: * Create, edit and delete notes and tasks * Collapse and expand sub-notes * Schedule tasks and set their deadlines * Set priorities and tags for notes * Fling notes left or right to open quick-menus * Search notes by various properties * Create and save searches for quick access * Synchronize notebooks with one or more directories Orgzly Revived is a community fork of the app Orgzly.
F-DroidGitHubIzzyOnDroid
Oriens
APK
Display and Roman Timekeeping (Unequal Hours) calculated by location * Roman Night Watches * Gregorian Calendar * Roman Timekeeping * Sunrise and Sunset
F-DroidGitHub
Orientation Lock
APK
Orientation Lock is a simple open source app to lock the screen orientation, for Android 5.0+.Features:Minimalist and lightweight: less than 100KB in size;Clean design: easy-to-use interface;Open source: no dependencies, no ads, no trackers.Why Orientation Lock?When using an Android tablet, you might find that some applications do not support landscape mode or specific orientations. This was quite troublesome for me. I tried several screen orientation locking apps available on the market, but they were overloaded with features. I simply needed an app to lock the screen orientation, so I decided to create one myself.The principle behind locking the screen orientation is very simple: it involves using a floating window to render a view in a specified orientation. This is just a straightforward application, and I wanted to keep it lightweight. Therefore, I implemented it using native methods without any third-party libraries. Pretty cool, isn’t it?
GitHubIzzyOnDroid
OsciPrime
APK
Measure the microphone audio input as well as a USB Oscilloscope on sale from the website.
F-Droid
Outspoke
APK
Outspoke is a free and open-source speech-to-text keyboard for Android.All transcription happens entirely on your device using the NVIDIA Parakeet ASR model via ONNX Runtime - no audio ever leaves your phone, no account required, and no internet connection is needed after the model is downloaded.FeaturesFully on-device inference - completely privateWorks as a standard Android Input Method (IME) in any appDownloads the model once over Wi-Fi; works offline afterwardsNo Google Play Services, Firebase, or any third-party telemetryMinimal permissions: microphone, notifications, foreground serviceRequirementsAndroid 11 (API 30) or higher~700 MB free storage for the model fileOpen Source Outspoke is licensed under GPL-3.0 license. Source code and build instructions are available on GitHub.
GitHubIzzyOnDroid
OwnDroid
APK
OwnDroid is a DPC (device policy controller) app.It supports the following working modes:Device ownerProfile owner (only in secondary users)Work profileDhizukuIt has the following features:System: disable camera, disable screenshot, master volume mute, disable USB signal, lock task mode, wipe data...Network: add/modify/delete Wi-Fi, network stats, network logging...Applications: suspend/hide app, block app uninstallation, grant/revoke permissions, clear app storage, install/uninstall app...User restriction: disable SMS, disable outgoing call, disable bluetooth, disable NFC, disable USB file transfer, disable app installing/uninstalling...Users: user information, create/start/switch/stop/delete user...Password and keyguard: reset password, set screen timeout...
GitHubIzzyOnDroid
Ox Shell
APK
Introducing Ox Shell for Android, a sleek and intuitive home screen experience inspired by the iconic look of a classic video game system. With Ox Shell, you can enjoy easy access to all your favorite apps and games, all while enjoying a visually stunning interface that’s sure to impress.Ox Shell features a horizontal scrolling menu that allows you to quickly navigate through your apps and games. You can easily customize your home screen with your favorite apps and emulators, and the launcher’s intuitive design ensures that everything is easy to find and access.One of the core features of Ox Shell is its ability to be navigated through with a gamepad. You can even open the app switcher using a gamepad (accessibility permission must be enabled for this feature). The launcher also supports intuitive touch controls.Ox Shell can be used as a live wallpaper service. It allows you to pick from a couple of built-in options or even to set up your own shaders as your device’s background. On top of that Ox Shell also doubles as a file explorer. Allowing you to copy, cut, rename files, and more.So if you’re looking for a home screen experience that’s both beautiful and functional, Ox Shell is the perfect choice. With its sleek design, customizable options, and powerful performance, it’s the perfect way to take your Android experience to the next level.
GitHubIzzyOnDroid
P.CASH Crypto Wallet
APK
A powerful non-custodial multi-wallet for Bitcoin (BTC), Ethereum (ETH), Binance Smart Chain (BNB), Dogecoin (DOGE), Toncoin (TON), Solana (SOL), Avalanche, DASH, Monero (XMR) and zCash (ZEC), supporting NFTs and a wide range of other assets. Now with Tangem hardware wallet support — private keys are securely generated and stored directly on the card, never exposed or saved anywhere. There is no seed phrase to write down or store, making it virtually impossible for attackers to steal your assets. Includes built-in onchain DEX, institutional-grade analytics for crypto and NFT markets, advanced privacy tools, and a human-centered interface. Also supports emerging blockchains like PirateCash (PIRATE) and Cosanta (COSA).
F-DroidGitHub
P7Zip
APK
AndroidP7zip is a compress and extract library supporting popular compression formats such as rar, zip, tar, lzma. It is based on p7zip. This app comes with a simple interface, no bells and whistles: just compress, extract or remove.
GitHubIzzyOnDroid
PAFCalc
APK
Utility to help you with calculations related to DIY fertilizers for planted aquariums. Features: * Dose to reach target: How much fertilizer you need to add to tank to reach the target value (in ppm *) of a specific element * The result of a dose: How much of each element of the compound will be added to tank with a given dose. * Estimative Index: The same as (Dose to reach target) but the target is the value expected from E.I. Protocol * Estimative Index Daily: The same as (above) but for daily dosing * Estimative Index Weekly: The same as (above) but for weekly dosing * Perpetual Preservation System: The same as (Dose to reach target) but the target is the value expected from P.P.S. Protocol * Poor Man Dosing Drops: The same as (Dose to reach target) but the target is the value expected from P.M.D.D. Protocol
F-Droid
PAIesque
APK
PAIesque helps athletes and fitness enthusiasts monitor their training through a simple three-step logic: 1. Measure training impulse (TRIMP) — The faster and longer your heart beats, the higher your daily score. 2. Analyze patterns over time — Track how your TRIMP accumulates and distributes 3. Monitor your body's response — Compare how your body reacts to training load PAIesque is different from commercial fitness apps (e.g. Garmin, Whoop, Polar). Every metric comes from published, peer-reviewed research with transparent methods that can be calculated from heart rate data alone. The app only includes metrics we can verify and reproduce from first principles — no proprietary black boxes, no undisclosed algorithms. And, all your data stays on your device. 1. TRIMP: • Banister TRIMP — The original exponential model with sex-specific coefficients (a=0.64/0.86, b=1.92/1.67) [Banister, 1991; Morton et al., 1990] • iTRIMP — Individualized TRIMP with customizable b coefficient (1.5-4.0) [Stagno et al., 2007; Akubat et al., 2012] • LT-TRIMP — Lactate Threshold-based model with β coefficient (0.04-0.11) and smooth transition at LT [Cheng et al., 1992; Mader et al., 1976; Gaesser and Poole, 1986] • PAI-esque — PAI-inspired metric using EWMA (not the official commercial algorithm) [Nes et al., 2017; Kieffer et al., 2021] 2. Patterns over time: • Intensity zones — Time and TRIMP spent in low/moderate/high zones (polarized training model) [Seiler and Tønnessen, 2009; Stöggl and Sperlich, 2014] • EWMA — Exponentially Weighted Moving Average for rolling loads (more sensitive than simple averages) • ACWR — Acute:Chronic Workload Ratio for injury risk monitoring (0.8-1.3 = sweet spot) [Murray et al., 2017; Griffin et al., 2021; Gabbett, 2016] • Polarized Training Score — 0-100 measure of how closely your distribution matches your targets 3. Body's response: • Resting Heart Rate (RHR) — Calculated from your defined sleep window (adaptive percentile: 5th-15th) • Heart Rate Variability (HRV) — Daily RMSSD averages during sleep [Task Force, 1996; Plews et al., 2013; Buchheit, 2014] • EWMA trends — Exponentially weighted moving averages for both RHR and HRV (acute and chronic windows) • Combined interpretation — RHR ↓ + HRV ↑ = positive adaptation; RHR ↑ + HRV ↓ = possible fatigue Data Management: • CSV export/import • Complete backup/restore (db) • All data stays on your device — no accounts, no cloud uploads, no tracking Creative Use Cases: • Coach analyzing athletes — Import athlete exports, analyze charts, provide feedback • Research analysis — Export CSV files for custom analysis in R, Python, or spreadsheets • Switch between athletes — Use "Delete All Data" + CSV import to analyze multiple individuals Requirements: • Google Health Connect installed on your device • Heart rate (and HRV) data in Health Connect from your wearable device (Gadgetbridge, Garmin, Polar, Samsung, etc.) • Android 8.0 (API 26) or higher Note on PAI: Our PAI-esque implementation is NOT the official commercial PAI® algorithm (which is proprietary). It uses EWMA and scaled TRIMP values to provide a similar intensity-weighted weekly score. The 100 PAI target remains the evidence-based health outcome from the HUNT Study research.
F-Droid
PI
APK
PI is short for "Package Installer". It is just a Package Installer and its function is very simple. In short, my idea is, this app works for me, you can use it if you like, but if you need features that I don't need, then I won't add them. It's just a niche project.PI requires Shizuku or root to acquire the elevated privileges needed to do its job.
GitHubIzzyOnDroid
PIN Mnemonic (Privacy Friendly)
APK
Provides strategies to memorize a 4-digit PIN. Therefore it determines whether the PIN forms a T9-word, underlies a mathematical rule or forms a date or year. It is part of the Privacy Friendly Apps developed by the SECUSO research group of the Technische Universtität Darmstadt in Germany.
F-DroidGitHub
PPPPutSettings
APK
System settings changer without root for PhoneProfilesPlusHelper application for configure Android settings parameters. With this application is not needed rooted device.*** IMPORTANT ***It is "plugin", so does NOT work standalone!Designed for co-working with 'PhoneProfilesPlus' application. Without it, this application do nothing.Privacy Policy
GitHubIzzyOnDroid
PReVo
APK
PReVo is a portable version of Reta Vortaro (the free and libre Esperanto dictionary) for Android. It’s usable without Internet access and is quickly searched with the keyboard.
F-DroidGitHub
PS-Aux
APK
Android task manager and automated background service killer. Features:Shows linux ps command output.Shows detailed information about processes.AutoKill (Terminate selected background services constantly)App Widget (for starting autokill service)Optional ps command arguments.
GitHubIzzyOnDroid
PSIAndroid
APK
Little tool allowing you to monitor your phpSysInfo system on your phone. Features: * Operating System Information (Version, Uptime, ...) * CPU, Memory and Disk usage * Multi-host * HTTPS * Basic/Digest Authentification * Temperatures (MotherBoard and IPMI) * Fans speed (MotherBoard) * Network informations * PSStatus * SMART * RAID * UPS * UpdateNotifier * Printers (SNMP) * Auto-Refresh feature (experimental)
F-DroidGitHub
PSLab
APK
Pocket Science Lab Android interface for PSLab hardware
F-DroidGitHub
PTO - Plaintext Organizer
APK
To-do list, notes, appointment book, diary, journal, and… alarm clock? All possible with one plaintext file per day. PTO brings a convenient editor and important additional functions. Features • Powerful text editor with undo/redo, autosave, and more. • Quickly take notes on the lockscreen, without unlocking your device. • Reminders for upcoming events (format: @12:34 -15m foobar) • Fast search through all pages. • Save and open links to other apps and webpages. • Uses no network connection. All content is local on the device. • Optional template for new pages. • Backup/import pages to/from ZIP file. • And more, see the help: https://gitlab.com/ferreum/pto/-/blob/master/app/src/main/assets/help.md Origin This is a (now distant) fork of billthefarmer's Diary: https://github.com/billthefarmer/diary PTO has a lot of internal and UI changes. It focuses on usage as a general organizer instead of a Diary, though it can still be used as such, if you don't need the removed features. Most notably the markdown view has been removed, so no inline media can be displayed. See the help file for more differences: https://gitlab.com/ferreum/pto/-/blob/master/app/src/main/assets/help.md#origin
F-Droid
PX:VW - converter
APK
This app allows you to easy convert static units to adaptive units with three steps: * set width of the screen; * set height of the screen; * enter value to get its converted to vw and vh value.
F-DroidGitHub
Package Manager
APK
Package Manager is a highly powerful application to manage apps, both system and user, installed on an android device. WARNING: I Am NOT Responsible for any Damages on Your Device! ROOT Access is required for some advanced features. Features Package Manager is a simple, yet powerful application, offering the following features: * A beautiful list view of System and User applications, together or separately. * Helps to do basic tasks such as Open app, show app info, visit PlayStore page, uninstall (User apps), etc. * Install Split apk's/app bundles (supported bundle formats: .apks, .apkm, and .xapk) from device storage. * Explore and export contents of an installed app (Experimental). * Export individual or a batch of apps (including Split apk's) into device storage. * Do advanced tasks such as (need Root access): • Uninstall an individual or a batch of system apps (de-bloating). • Control Operations (AppOps). • Disable or Enable individual or a batch of apps. Translations Please help me to translate this application via POEditor. You may also translate after downloading the original language string available GitHub.
F-DroidGitHub