Learn more. Remember longer.

Reading anything already simplified is free forever. Paid plans let you keep more skills fresh, go deeper with harder quizzes, and complete full courses.

How “skills” stay fresh

Fresh

Just learned. Counts toward your progress and courses.

Expiring soon

Under 30 days left. A quick retake resets it to fresh.

Stale (after 6 months)

Free: drops from your library — retake to bring it back. Pro: auto-renews, never lost.

Free

Everything you need to start learning.

$0 forever

✓ Unlimited reading of already-simplified articles
✓ 3 new simplifications per day
✓ Save up to 10 skills
✓ 3-question quiz per article
✓ XP, badges, streaks & collections
✓ Works in any language

Saved skills stay fresh for 6 months, then go stale — retake to refresh.

Start free

Pro

For serious, lifelong learners.

$3.99 per month

✓ Everything in Free
✓ Unlimited new simplifications
✓ Save up to 1,000 skills
✓ Skills auto-renew every 6 months — never lose progress
✓ 8-question quizzes with harder, in-depth questions
✓ Full preset course library
✓ Priority processing

Your skills stay fresh automatically — nothing expires while you're Pro.

Coming very soon

Teams & Orgs

Upskill your whole team.

Custom per seat

✓ Everything in Pro for every member
✓ Build private courses from your own docs & resources
✓ Assign courses and track completion
✓ Google & Microsoft SSO
✓ Shared skill library & analytics
✓ Priority support

Turn your internal documentation into guided courses your team actually finishes.

Baiku uses AI to simplify publicly accessible content and always links back to the original source. Course content is drawn only from commercially-licensed, open, and public-domain sources.