Terms of use

RKI Studio is a Chrome extension for RFL and bilingual Russian teachers preparing personal lessons. The developer is Hannlabs. This website demonstrates the approach and explains product features.

Teachers review facts, language, age suitability and activity behavior before teaching. AI results can contain errors and require professional review.

Materials are created in an external service — Gemini, ChatGPT or Claude — after you manually send the prompt. You need an account and must follow that service’s terms; its prices and limits are separate.

Free allows up to three active students and three saved lesson-creation attempts per local calendar day, lesson structure, prompt preview and copying, local profiles and backups. Pro removes the limits and unlocks history, Repeat, New Variation, the mechanics catalog and manual selection.

The displayed Pro price is €5.90 per month. Final pricing and terms appear in the extension before payment and in Stripe. Subscriptions renew monthly; manage them and turn off renewal through More → Subscription. Access is checked automatically; a return page does not confirm payment.

Subscription and product questions: root@hannlabs.com.