Open Source

A turn based strategy game with a pixel art style! Over 30 levels and 30 unit types! Sound and music by Fubuki Most graphics by: Stavros

Build a tower as tall as possible. The game is developing using Godot v2.1.4.

Share the data for adding missing icons in an icon oack via email (or other protocols like Owncloud, NFC, Bluetooth, IM...). It just collects the app title, package name, activity name and the icon file of the apps your select. By default have set the email address for TwelF and Onze requests, but you can write another one.

TurtleGraphics is a platform with a Pythonic language for learning and practicing CPU and GPU programming on mobile devices. TurtleGraphics began as a reimplementation of the classic Turtle Graphics environment for Android using a simple language. Over time, that language, Lilo, evolved into a platform featuring a heterogeneous Python-inspired language that allows targeting both the CPU and GPU within the same program, influenced by Python, Mojo, and CUDA. Features Free and open source with no ads or data collection. A Python implementation written from scratch with built-in GPU programming support and user-friendly error messages. Supports many modules from the Python standard library. Interactive preview for Turtle Graphics programs. Includes numerous examples demonstrating GPU programming, Turtle Graphics, and Python language features.

Tusky is a lightweight client for Mastodon, a free and open-source social network server. • Material Design • Most Mastodon APIs implemented • Multi-Account support • Dark and light theme with the possibility to auto-switch based on the time of day • Drafts - compose toots and save them for later • Choose between different emoji styles • Optimized for all screen sizes • Completely open-source - no non-free dependencies like Google services To learn more about Mastodon, visit https://joinmastodon.org/

Take your privacy to the next level with the secure Tuta Calendar app. This encrypted time-management tool is the most private way to organize your busy schedule – and it’s quick to navigate, comes with dark and light mode, plus, it’s perfectly integrated with the Tuta Mail app. SECURE CALENDAR * Quantum-safe encryption: End-to-end encrypted data exchange with all Tuta Calendar users and with users of other calendar apps (via optional password-protected event invites). * No ads, no tracking, and no data sharing: We protect your privacy. * Zero-knowledge architecture: Entire events, including event notifications, are encrypted and hidden from our servers. We do not know when your meetings are taking place, who they are with, or what they are about. * Based in Germany: All data is safeguarded by strict German data protection laws. * Fully GDPR-compliant FULLY FEATURED * **SYNC ON ALL DEVICES:** Your Tuta planner syncs automatically on all devices and browsers. * **RECURRING EVENTS:** Use daily, weekly, monthly, yearly or custom repetitions. * **MULTIPLE CALENDAR VIEWS:** Switch in one tap between agenda, daily, weekly, and monthly view. * **SYNC EXTERNAL CALENDARS:** Events will automatically sync if the owner adds or updates events or meetings on external calendars. Once subscribed, no action is needed. * **MANAGE UNLIMITED CALENDARS (paid feature):** You can toggle different calendars into view with a single press or leave all events visible for a complete overview. * **EVENT REMINDERS:** Never miss a date. Tuta’s zero-knowledge reminders make sure you never miss an appointment. * **LINK CALENDAR EVENTS TO EMAILS AND CONTACTS:** Your Tuta Calendar is directly linked to your Tuta Mail account, so when creating events you can easily invite your contacts or send invites to others via email. * **OFFLINE SUPPORT:** Independent standalone app so you can check your schedule both online and offline!

Tutanota enables you to use the benefits of the cloud - availability, flexibility, automatic back-up - without compromising on security. With Tutanota's built-in encryption you own your data, no one else can access it. Tutanota comes with a light & beautiful GUI, dark theme included, with instant push notifications, auto-sync, full-text search, swipe gestures and more. The open source email app Tutanota enables you to send end-to-end encrypted emails to anybody. Even emails that are being sent without end-to-end encryption and all your contacts are stored securely encrypted on the Tutanota servers. Our passion for privacy. Tutanota is being built by a team passionate about everybody's right to privacy. We are supported by an amazing community, which enables us to grow our team continuously making Tutanota a success without depending on venture capital interests. Tutanota respects you & your data: - Only you can access your encrypted emails & contacts. - Tutanota does not track or profile you. - Open source client & apps. - Innovative full-text search feature lets you easily search your mailbox. - TLS with support of PFS, DMARC, DKIM, DNSSEC and DANE. - Secure password reset that gives us absolutely no access. - 100% developed and located in Germany under strict Data Protection Laws (GDPR). Official website: https://tutanota.com Source code: https://github.com/tutao/tutanota With the Tutanota app, you can: - create your own Tutanota email address (ending in @tutanota.com, @tutanota.de, @tutamail.com, @tuta.io or @keemail.me) with 1 GB of free storage. - create your custom domain email address for €1 per month. - send and receive end-to-end encrypted emails to anybody. - send and receive old-fashioned emails (not end-to-end encrypted). Even these emails are stored encrypted on the Tutanota servers. - automatically encrypt subject, content and attachments. - get push notifications instantly. - auto-complete email addresses as you type from your Tutanota or your phone contacts. The Tutanota app asks for very few permissions to keep your level of privacy to a maximum: - Full network access: Used to send and receive emails. - Receive data from the internet: To notify you when you receive a new email. - View network connections: To find out if an internet connection exists. - Read your contacts: This enables you to select recipients from your phone's contacts. - Read from SD card: To allow adding of attachments from the SD card to emails. - Control vibration: To notify you when you receive a new email. - Deactivate sleeping mode: To notify you when you receive a new email.

Tutto Counter is the perfect companion for your "Tutto" game nights. With this app, you can easily track and manage the scores for multiple players. Features: * Add or remove any number of players. * Customize player names and colors. * Simple score entry with predefined values (e.g., for a street) and free input. * Game history is saved, so you can always see who got how many points and when. * Random player names from different categories (animals, cities, etc.). The app is completely open source and respects your privacy. License: GPLv3 Source Code: https://gitlab.com/gJsas/tutto-counter

Tuty Fruty Slot for Android is play for fun slot machine developed by Velbazhd Software LLC (c) 2008-2026. Load credit from the menu and spin the reels.

A bunch of asteroids are falling on the city and only you can stop them. Armed with a laser cannon, you will have to correctly perform the calculations indicated on the asteroids in order to be able to aim them correctly and destroy them. The game has many levels of difficulty, allowing you to train with additions, subtractions, multiplications, divisions and finally relative numbers. It will be perfect for schoolchildren who have to revise their tables, as well as adults who would like to challenge themselves with more difficult calculations. This game is a rewrite for android of the famous free software TuxMath, a very popular educational software for PC. Just like the original game, it's totally open source and free (AGPL v3 license), and without any advertising. This new version of TuxMath brings some new features: * The "auto level" option: when this option is activated, the game will automatically switch to another level if the player has too much ease or too much difficulty with the operations that he must solve. * Added levels with operations involving 3 numbers or more. * A penalty (igloo destroyed) in case of too many wrong answers (To discourage the strategy of trying all possible answers). * Possibility to play with 3 graphic themes: "Classic", "Original" and "Afrikalan".

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.

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.

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.

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.

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

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.

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

Third-party client for the Twister peer-to-peer microblogging platform.

Built entirely in native Kotlin, Txori runs fully on-device, avoids tracking and no internet access.

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.

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.

Built entirely in native Kotlin, Tui runs fully on-device, avoids tracking and no internet access.

Show relevant information for UCLL students, for example personal course calendar, portal announcements and bus departures.