How it plugs in
—Public API
NoOpen source
YesFree tier
Signal on Coding Education Platforms5.1#34 of 49

Pricing
- Freebilled monthly · 4 game-based coding lessonsFree
- Essentialper month per child · 3 coding challenges · 3 project templates$10/mo
- Advancedper month per child · All 90+ game-based coding lessons · Block-based coding playground · All coding challenges · All project templates$14/mo
- ubbu Starter30 students · 4 classes to try with students · Check the first 30 classesOn request
- ubbu Full6–200 studentsOn request
- ubbu Full Plus200+ studentsOn request
As ubbu.io lists them, checked 4 Oct 2026.
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