Quizlet is a mobile and web-based study application that allows students to study information via learning tools and games.

It is an eighth-generation home video game console developed by Sony Computer Entertainment. Announced as the successor to the PlayStation 3 in February 2013, it was launched on November 15 in North America, November 29 in Europe, South America and Australia, and on February 22, 2014, in Japan. It competes with Microsoft's Xbox One and Nintendo's Wii U and Switch.

Obsidian is the private and flexible note‑taking app that adapts to the way you think. Obsidian stores notes on your device, so you can access them quickly, even offline. No one else can read them, not even us. With hundreds of plugins and themes, you can shape Obsidian to fit your way of thinking. Obsidian uses open, non-proprietary files, so you're never locked in, and can preserve your data for the long term.

Blloc is a plain and minimalistic smartphone combining a power saving operating system with efficient hardware and an easy to use messaging platform, it’s built to be the perfect communication and productivity tool that you can rely on every day.

POLAR is a powerful offline browser for Mac, Windows, and Linux for managing all your web content, books, and notes. Polar keeps all your content in one place, supports tagging, annotation, highlighting and keeps track of your reading progress. POLAR allows you to keep all your documents, annotations, and flashcards in once place.