Membership rules

1. Free plan

Free, with no time limit: all foundation exercise chapters, exams, completion certificates, Stage 1 lessons and AI Tutor with a limited number of turns per day.

2. Pro plan

Adds Stage 2 lessons, more AI Tutor turns (limits shown in the app) and detailed study reports. The term runs from activation according to the plan's months; buying again while still valid stacks on top.

3. Expiry

When it expires, the account returns to the Free plan. All work, progress and learning history are kept.

4. Canceling renewal

Pro plans do not auto-renew. You can turn off renewal reminders on the My plan page; Pro rights still work until the paid term ends.

5. Changes to benefits

AI limits may be adjusted to keep service quality; changes are announced in advance on the website.

6. One account, one person

A Pro plan belongs to one account and is for one user only.

Updated: 30/10/2026.