Terms of use

Haza is provided by Maxim Chupilkin. Contact: max@artificial-experiments.com. Updated 2026-11-04.

Study companion

Haza offers independent educational practice based on cited public materials. It has no government affiliation. Questions are original learning exercises and do not reproduce a complete official examination or its marking scheme. Use current official notices for exam and application requirements.

Free access and Haza Premium

The first chapter in each path, its quizzes and flashcards, one citizenship speaking topic and a three-question timed demo are free. Progress tracking and backup export/import remain free. Free access may include advertising. Haza Premium is a monthly auto-renewable subscription unlocking all six chapters and the complete question bank in both paths, all 20 citizenship speaking topics, unlimited full timed practice and no advertising. The app and store purchase sheet show the applicable localized monthly price. Payment is charged to your store account. The subscription renews automatically unless cancelled at least 24 hours before the current period ends. Manage or cancel through your store account. Access continues through the paid period, and your saved progress remains after expiry. Payment and refunds follow store procedures and applicable consumer rights. Restore with the purchasing store account.

Your files

You control exported progress files. Keep a backup before replacing data or removing the app. Restore replaces both paths after confirmation. A backup does not transfer a store purchase between Apple and Google.

Content and corrections

Public source materials remain subject to their own terms. Haza’s questions and summaries are independent educational content. Send factual corrections to max@artificial-experiments.com with the question and supporting official source. These terms do not exclude mandatory consumer rights.