Software · Education & science

Endless Key

Curated learning anytime, anywhere.

Completely free
Linux
Open source

At a glance

All of Endless Key is free: no feature is locked behind a paid plan, and its code is open.

Its licence (MIT) is a permissive open source licence: use, modification and redistribution are allowed, including in commercial projects.

Strengths

Open source code
Commercial use allowed

Weaknesses

Few recent updates

About

A private and safe app where learners can explore dozens of educational resources that are carefully curated to provide extended learning. Explore interest-based options like coding, arts & crafts, cooking, and STEM, both online and offline. The majority of the resources are in English, with a small number in Spanish. Grades 5–9 ✨ 2700+ Curated resources 📚 1500+ Videos 📹 300+ E-books 📖 Benefits for Teachers 🍎 Includes vetted resources from leading educational organizations ✔️ Supports self-guided learners 🚀 Supplements traditional lessons 🎒 Promotes diversity and cultural relevance 🌍 Benefits for Learners 🎓 Works online and offline 🌐 Promotes curiosity-driven learning 💡 Provides a safe learning environment 🛡️ Meets data privacy requirements Curated to be interest-based ❤️

Description from Flathub — AppStream (Flathub)

Sources and checks

Facts collected from Flathub (credit card, publisher, licence, free status, platforms, commercial use, version) — 9 November 2026
Facts collected from Official plan pages (pricing, licence, terms) (commercial use) — 9 November 2026
Last technical check: 7 November 2026
Description from Flathub — AppStream (Flathub)

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