❓ Common questions

Frequently Asked Questions

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What is Oyster?

A math learning app for grades 5–8 that combines the flipped learning method, gamification and AI.

What is the flipped learning method?

A method where the student explores the topic before the school lesson. The child studies the week's topic in advance and arrives prepared and confident. Detailed explanation.

How does the AI find a child's gaps?

It analyzes exercise answers to identify the outcomes they struggle with and provides targeted extra practice.

Which grades does it cover?

Grade 5–8 math outcomes.

Is Oyster safe?

It is ad-free, has no external links, and handles data in a privacy-first way. Privacy Policy.

Is it free?

There is a free starter plan. Full content and AI personalization come with Premium. See plans.

How do I cancel my subscription?

Cancel anytime from your App Store or Google Play account subscription settings.