coob.app
Create & launch full-featured online courses inside Telegram
coob.app launched on June 19, 2025 with 102 votes, #424 of 7,999 launches that month and more than 90% of that year's launches. The site was not reachable when checked in September 2026.
What it does
Coob.app is a lightweight but powerful LMS fully integrated with Telegram. With no external logins or web dashboards, educators can build, launch, and sell their courses in a familiar messenger interface.
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