Cost / License
- Freemium
- Proprietary
Platforms
- iPhone
- iPad
- Android






Calmcode provides a calm way to learn about modern ideas in open-source code. Made by people who want to remedy the skill anxiety. Tools and thoughts that might make your professional life more enjoyable.

StackBay is a self-learning app that offers a wide range of educational content from various fields. It curates courses, tutorials, articles, and videos from top online platforms. The app's recommendation system suggests personalized learning paths based on your interests...




SkyView is powerful, easy-to-use app that answers questions about stars, constellations, and more. Simply point the camera to the sky, tap on what you see and discover neat things about these sky objects.



MinT is a machine translation system hosted by Wikimedia Foundation. It uses multiple Neural Machine translation models to provide translation between large number of languages.

Online engineering calculator that automatically checks/converts units, solves systems of equations, plots, and allows you to share your work with others.

Improve your typing skills through a series of easy lessons! Learning how to type properly without looking at the keyboard is simple. Rapid Typing Tutor makes keyboard training fun and entertaining.




Inspired by Kiwi Browser, an enhanced Chromium for Android with full extension support and UI improvements.



Simulation & rendering software that uses Smoothed Particle Hydrodynamics (SPH) to simulate collisions of celestial bodies, accretion disks around black holes, or formation of galaxies in the early universe.




Experience the captivating wonders of the cosmos with Galaxy Map - Stars and Planets, an interactive 3D planetarium powered by precise data obtained from NASA and ESA space missions. Delve into a profound expedition through the infinite expanse of space, where an abundance of...




Glossika helps you speak a language better and faster in the least possible time by using smart technology, adaptive learning algorithms, and carefully tailored content. We currently offer resources for 65 languages, and there are more to come!





VisualMathEditor is a LaTeX, AsciiMath and MathML editor developed in Javascript and HTML. It operates independently on the web or locally. It has many features and menus that help the equation-entry and allow their posting and backup.



SparkCodeHub is one-stop solution for mastering the world of programming, data engineering, and web development! We offer an extensive range of high-quality tutorials crafted by industry experts to help you level up your technical skills, regardless of your current proficiency.


TheSage is a powerful language reference system that couples a professional dictionary of the English language with multifaceted and extensive thesaurus

MDwiki is a CMS/Wiki completely built in HTML5/Javascript and runs 100% on the client. No special software installation or server side processing is required. Just upload the mdwiki.html shipped with MDwiki into the same directory as your markdown files and you are good to go!




Conzept is an attempt to create an encyclopedia for the 21st century. A modern topic-exploration tool based on Wikipedia, Wikidata, Open Library, GBIF and other useful information sources.




wizdom.ai (formerly colwiz) is a free and comprehensive research management software for researchers, academics and students. With the wizdom.ai android app, you can search, add and manage publications in your wizdom.ai library on the go. Sync instantly across wizdom.



Four Minute Books brings passionate readers and book nerds 4-minute book summaries of the world's best non-fiction books. They're short on time, but big on learning. With each summary the reader can learn 3 valuable lessons in 4 minutes or less, while simultaneously...

Rašyti is a multilingual and multi-keyboard touch typing trainer, currently covering 28 languages. Offline applications for Linux, Windows and MacOS are available. However, it can also be used online as a web service.







