Sololearn
Learn to code entirely on your phone — bite-size, free, 20+ languages. Built for exactly no-laptop situations.
- Computer Science
- Who can enter
- Ages 13+ worldwide — free; learn to code on a phone, 20+ languages
- What it costs
- A real free tier (ad-supported) — and course-completion certificates are free without paying. An optional Pro subscription (about $6–13/month) unlocks the full courses and unlimited practice.
- When it closes
- We could not confirm this year's date against the organiser's own page, so we are not showing a countdown for it. Last published: Self-paced on your phone — start any time, free.
Sending this to someone sends the four facts above, not just a name — they will see who can enter and what it costs before they decide.