Every visualization is free, and so are the skill tree and the learning paths. Premium adds the hard challenges and certificates of completion on web and Android, and GIF export of any run that draws an array on the web. One subscription covers both.
49 kr / mo
Cancel anytime.
399 kr / yr
SEK 33.25 / mo, billed annually.
| Feature | Free | Premium |
|---|---|---|
| Every algorithm visualization | ||
| Step-through playback + speed control | ||
| Progress tracking, XP & levels | ||
| Easy & medium challenges + daily challenge | ||
| All hard challenges | ||
| Skill tree & learning paths | ||
| Certificates of completion | ||
| GIF export of any run that draws an array, on the web |
Prices in Swedish kronor, tax included. If you pay in another currency, Stripe converts at checkout and shows you the amount first. Cancel anytime.