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5118 apps · feature

Tux Paint
APK
Tux Paint is a free, award-winning drawing program for children ages 3 to 12 (for example, preschool and K-6). Tux Paint is used in schools around the world as a computer literacy drawing activity. It combines an easy-to-use interface, fun sound effects, and an encouraging cartoon mascot who guides children as they use the program.
F-DroidGitHub
Tux Rider
APK
Control penguin Tux, riding down a snow slope: collect fishes, earn scores and advance through nine unique levels! Find the right angle to hold the device to gain maximum speed and press the screen to jump.
F-DroidGitHub
TuxGuitar
APK
TuxGuitar is a multitrack tablature editor and player. It can open Guitar Pro and PowerTab files. With TuxGuitar, you will be able to compose music using the following features: * Tablature editor * Score Viewer * Autoscroll while playing * Note duration management * Various effects (bend, slide, vibrato, hammer-on/pull-off) * Support for triplets (5,6,7,9,10,11,12) * Repeat open, close and alternative endings * Time signature management * Tempo management Note: this version of TuxGuitar is missing google drive functionality as it depends on a proprietary library.
F-Droid
Twili Recipes
APK
AI powered cooking assistant with Next Cloud integration. Easily add any recipe with the help of ChatGPT. Simply copy it from any page on the internet or type it manually. Recipes in all languages are supported. Recipes can be stored locally or in Next Cloud instance. Unique UI makes it easy to scale recipes and follow instructions. App is available for Android and Desktop. You can download version for other platforms from my website.
F-DroidGitHub
Twine
APK
Twine is a multiplatform RSS reader app built using Kotlin and Compose Multiplatform. It features an nice user interface and experience to browse through the feeds, and supports Material 3 content based dynamic theming.Features:Supports RSS & Atom feedsGorgeous home feedPin frequently visited feedsSmart fetching: Twine looks for feeds when given any website homepageReading view with shortcut to fetch full articleBookmark posts to read laterSearch postsBackground syncFeed management: Add, Edit & Pin feedsImport and exports your feeds with OPML
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Twire
APK
Twire is an open source, ad free Twitch browser and stream player for Android. You can select multiple themes and also login with your twitch account. You can also follow and unfollow streamers through the app. Please note that the chat is only available if you login to your account.
F-DroidGitHub
Twisted Home Manager
APK
Manage and switch between launchers, the apps that manage your homescreen. Available options include: * Switch between Home Apps (Launchers) * Clear Default Home app * Set Default Home app * Reference to 36 home apps on the market
F-DroidGitHub
Twister
APK
Third-party client for the Twister peer-to-peer microblogging platform.
F-DroidGitHub
Txori
APK
Built entirely in native Kotlin, Txori runs fully on-device, avoids tracking and no internet access.
F-DroidGitHub
Type and Speak
APK
Type and Speak makes your phone say out loud whatever you type! Save speech to use as ringtones and alarms. Can work via the share menu so you can have entire articles read out loud. Uses Android's multi-lingual text-to-speech engine which supports UK English, US English, French, Italian, German, and Spanish pronunciations.
F-Droid
Tyr - P2P Email
APK
Tyr is a revolutionary Android application that provides true peer-to-peer email communication using the Yggdrasil mesh network. Unlike traditional email systems that rely on centralized servers, Tyr runs a complete email server directly on your device.Key Features:True P2P Email - No central servers, no cloud infrastructure. Your device IS the email server.Built-in Tyr Chat - Native P2P messenger built directly into the app. No third-party client required. Send messages and photos over Yggdrasil instantly.Yggdrasil Integration - Built on the Yggdrasil overlay mesh network providing secure, end-to-end encrypted connections.Standard Protocols - Exposes SMTP/IMAP protocols on localhost, compatible with standard email clients like DeltaChat.Privacy First - All data stays on your device. Encrypted configuration backup with AES-256-GCM encryption.DeltaChat Ready - Seamless integration with DeltaChat for instant messaging over email.Cryptographic Identity - Your email address is derived from your Ed25519 public key, ensuring authenticity.Mesh Networking - Connect via public Yggdrasil peers or configure your own custom peers.Battery Optimized - Sophisticated power management with timed wake locks and network monitoring.Secure by Design - Password protection using Android Keystore with EncryptedSharedPreferences.Backup & Restore - Export and import all settings with optional inclusion of your cryptographic keys.Technical Details:The app runs a foreground service that manages the native Yggmail library (Go-based), providing SMTP on port 1025 and IMAP on port 1143 (localhost only). Your mail address format is: <64-hex-characters>@yggmail, cryptographically derived from your Ed25519 key pair.Perfect For:Privacy enthusiasts who want control over their communicationsUsers seeking decentralized alternatives to traditional emailDeltaChat users wanting P2P messaging infrastructureAnyone interested in mesh networking technologyRequirements:Android 6.0 (API 23) or higherInternet connection for initial Yggdrasil peer connectionsBattery optimization exemption recommended for best performanceJoin the peer-to-peer email revolution with Tyr.
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Tūī
APK
Built entirely in native Kotlin, Tui runs fully on-device, avoids tracking and no internet access.
F-DroidGitHub
UCLL Student
APK
Show relevant information for UCLL students, for example personal course calendar, portal announcements and bus departures.
F-Droid
UDP Bus
APK
android-udp-bus is an application to create UDP forwarders, hubs and other tools. To aid building VPNs, video streaming and other tricky network uses. Features: * Binding UDP socket on specified port and exchanging traffic between all known peers * Exchanging traffic between multiple UDP sockets * Remembering specified number of peers that have sent us some datagram, with optional expiration policy * Directly specifying peers to send datagrams to. Combined with remembering, it allows using the application as UDP forwarder. * Joining multicast groups, setting TTL, TOS, read and write buffer sizes and other socket options. * Periodical sending of hardcoded datagrams to specified peers (e.g. to keep NAT open) * Displaying of detailed statistics of the traffic * Starting multiple isolated hubs, each with distinct set of ports. Can even act as a simplistic load balancer due to SO_REUSEPORT. The application does not send datagrams back to sender. Limitations: * UI is not user-friendly. * Not all features are exposed in GUI - you may want to add some undocumented fields to the JSON manually. * Not very optimised for speed or latency. It may be slightly slower than socat udp4-l udp. * Not everything is tested yet * Documentation is lacking
F-DroidGitHub
U
UML Class Editor
APK
This app allows you to design an app using UML when you are away from a desktop. Features: Main UML notations for Java classes Class/attribute/method editor Java class, abstract class, interface, enum Built-in primitive types Custom types Standard functionalities such as export, import, merge
F-DroidGitHub
UMS Interface
APK
UMS Interface allows you to chose a block device or disk image as a 'disk',and communicate with PC through usb mass storage (just as usb disk do).There are some special usages. For example, you can select the whole emmc /dev/block/mmcblk0 and mount it to pc linux, so that you can some tool like gparted to do something like partition. And you can also use it as boot disk. Note: This app is no longer maintained and thus will receive no more updates.
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UP-Example
APK
This application is a generic application using UnifiedPush. It can be used to test your settings. You need to install an UnifiedPush distributor for this to work. More information at https://unifiedpush.org
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UPnP Explorer
APK
A free, open-source, mobile application to find and browse UPnP devices on your network.With this app you can:Discover UPnP devices on a network.See information about the device, model, and manufacturer.View device abilities.Send commands to devices on your network.
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UPnP Kino by naiveHA
APK
Uncomplicated simple: stream your video (mp4, mkv, avi, mov, wmv, webm) and/or audio (mp3, m4a, aac, flac, wav, opus) files stored on your Android phone to another phone, tablet, computer or TV set running a compatible video player.UPnP Kino is compatible with VLC, eezUPnP and other upnp enabled players and control points.How does it work?Make sure you are connected to WiFi, select a folder containing your video files and/or a folder containing your audio files and press "Start UPnP Kino". Then open your UPnP compatible video player, like VLC, and navigate to "Browse" on another WiFi connected phone or tablet, or "View/Playlist/Universal Plug'n'Play" on a desktop and enjoy your videos. The app has been extensively tested with VLC but other UPnP players should work just fine.Why not just use PlainUPnP (com.m3sv.plainupnp)?Well, first of all, it seems that the app has been removed from F-Droid. And, anyway, the app had a bug which made it impossible to stream video files over 2,147,483,647 bytes. Which is just over 2GB. Nowadays, most H264 encoded video files are above 2GB. "UPnP Kino" solves that problem in a fit-for-purpose way.Enjoy!
GitHubIzzyOnDroid
URL Radio
APK
URL Radio is a radio app that allows you to listen to many radio stations over the Internet. The app is completely free, free of ads and very slim! No frills, just listen to the radio.Favorites can be created, just wipe one station to the right. To defavorite the station again, simply wipe to the right again. You will find the favorites at the top. You can delete a station by wiping to the left. You can also search for a station and import it directly or enter a streaming address.Android Auto is also supported. To do this, simply go to the developer options in Android Auto and activate "Unknown sources".URL Radio searches the radio-browser.info online database. You can help out the radio-browser.info community by adding the missing station to their database.
GitHubIzzyOnDroid
URLCheck
APK
This application acts as an intermediary when opening url links. When you do so, a window containing information about the url is displayed, allowing you to make changes to it as well. Specially useful when you need to open an external link either from an email, a social network app or others. URLCheck is developed by TrianguloY, originally for personal use. It is open source (under CC BY 4.0 license), free, without any ads or trackers, light sized and using as few permissions as necessary (only the internet permission, for module checks that will only be performed when the user request them). The source code is available on GitHub too, if you want to suggest changes, perform modifications or propose a new translation: https://github.com/TrianguloY/URLCheck The app is structured with a modular setup, you can enable/disable and reorder individual modules, which include: * Input text: Displays the current url which can be edited manually. Can't be disabled. * History: View and revert any change from other modules, including edits from the user (typical undo/redo feature) * Log: Keeps a log of all checked urls, which you can view, edit, copy, clear... * Status code: By pressing the button a network request will be made to retrieve that url, and the status code will be displayed (ok, server error, not found...). Additionally, if it corresponds to a redirection, press the message to check the new url. The url is fetched, but not evaluated, so redirection based on javascript won't be detected. * Url Scanner: Allows you to scan the url using VirusTotal, and check the report. A free personal VirusTotal API key is needed for it to work. VirusTotal™ is a trademark of Google, Inc. * Url Cleaner: Uses the ClearURLs catalog to remove referral and useless parameters from the url. It also allows for common offline url redirections. Built-in catalog from https://docs.clearurls.xyz/latest/specs/rules/ * Unshortener: Uses https://unshorten.me/ to unshorten urls remotely. * Queries remover: Displays the decoded individual url queries, which you can remove or check. * Pattern module: Checks the url with regex patterns that warns, suggests or applies replacements. You can modify or create your own patterns, or even use user-created ones. Built-in patterns include: - Warning when contains non-ascii characters like greek letters. This can be used for phishing: googĺe.com vs google.com - Suggest replacing 'http' with 'https' - Suggest replacing Youtube, Reddit or Twitter with privacy-friendly alternatives [disabled by default] * Hosts checker: This module labels hosts, configured either by specifying them manually or by using a remote hosts-like file. You can use it to warn about dangerous or special sites. The builtin configuration specifies StevenBlack's hosts (adware/malware, fakenews, gambling and adult content) from https://github.com/StevenBlack/hosts * Debug module: Displays the intent uri, and optionally info about the ctabs (custom tabs) service. This is intended for developers. * Open module: Contains the open and share buttons. If a link can be opened with multiple apps, an arrow will be shown to let you choose. Can't be disabled.
F-DroidGitHubIzzyOnDroid
URLSanitizer
APK
Don't like those tracking GET queries from the big brothers? Here, this app got your back. Features: Cleanup URLs when opening link Sharing URLs to this app also cleans the URL How to use: Opening a link: Simply open the link with this app first, and choose the app you want to use to open the link afterwards. Sharing a link: Share to this app first, and choose the app you want the link to share to afterwards. Adding missing GET query(ies): Open the app, fill the query in, then tap on "Add Entry" button. (Note. Wildcard is supported since 1.3.0, check default entries for usage) How it works: This app handles Android intent to open/share link, so the app can get the URL and modify it, get rid of those dirty query and create another intent for your original action.
F-DroidGitHubIzzyOnDroid
URnetwork
APK
Privacy-First Decentralized Network All of the privacy and all of the fun. Join a decentralized VPN that advances the state of the art of privacy, availability, security, and performance. With URnetwork you get: - Multiple IPs at once. When you connect, every dot represents a unique IP. The IPs continually change and traffic is distributed amongst IPs for best performance. - No more insecure protocols. Older insecure protocols are disabled and seamlessly upgraded to modern encrypted protocols. - Built-in anonymity. Hard guarantees of anonymity using a large decentralized multi-hop network. - 100% open source and reproducible. See the exact code on the client and server. No logs, no spies. URnetwork uses VPNService to route your device traffic to provider devices. Traffic is encrypted using an open-source, web-standards protocol. Additionally traffic is anonymized using the URnetwork protocol. URnetwork links an external Solana wallet. We do not have custody of your wallet or facilitate swaps within the app. Terms of Use: https://ur.io/terms Privacy Policy: https://ur.io/privacy
F-DroidGitHub
US Travel Converter
APK
Converts useful imperial units to SI. Lots of tourists have problems with imperial units used in the USA, e.g. 6 foot 2 inch as body length. Its optimized for fast access to this units. Possible import tariffs can be calculated for EU import via mail or above the free of charge limit.
F-DroidGitHub
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