Privacy information

Publisher and contact: Maxim Chupilkin, max@artificial-experiments.com. Updated 2026-11-04.

Learning data

Scores, streaks, answers and review schedules are stored on your device. No Haza account is required and the app does not upload learning progress to a Haza server. Exporting a backup creates a JSON file that you choose where to save or share. Importing replaces both paths only after confirmation. Reset removes the selected path’s learning record. Device backups may be controlled by your operating-system settings.

Purchases and advertising

Apple or Google handles payment using your store account. Haza does not receive your card details. RevenueCat processes purchase receipts, entitlements and an app-specific identifier to validate purchases, provide and restore access, prevent fraud and measure subscription activity. AdMob and Google’s consent platform may process IP addresses and approximate location inferred from them, app- or device-related identifiers, consent choices, ad views and interactions, and diagnostic/performance information for advertising, measurement, fraud prevention and service operation. Haza does not request access to your device location services. Advertising may be disabled in test builds. In ad-enabled builds, the app requests non-personalized ads after the consent platform allows ad requests. The app does not request tracking permission or access to the advertising identifier through Apple’s tracking permission prompt. Non-personalized advertising can still involve personal information and device storage.

Read the RevenueCat privacy policy and Google privacy policy for processor practices. Purchase processing lets us deliver and restore Premium access. Advertising consent is collected where required. Learning records remain until you reset or remove them. Purchase records are retained as needed to provide and restore your subscription and meet applicable recordkeeping duties. Advertising data retention and international transfers follow Google’s processor policies. Contact us to request access or deletion of processor-held information; some transaction records may need to be retained for legal obligations.

Your choices

Use Advertising privacy choices to revisit available consent options. Notification permission and delivery are controlled by your phone; the app schedules a local daily reminder only when enabled. Source links open the relevant external website, whose own privacy practices apply.

Support and website visits

If you email support, the publisher receives the email address and information you choose to include, to respond to your request. Avoid sending immigration documents or payment-card details. When you visit these pages, the website hosting provider may process technical request information, including IP addresses and browser information, to deliver and protect the website.

Requests

Contact max@artificial-experiments.com for access, correction, deletion or other applicable privacy requests. Learning records can be removed locally through reset. Processor-held purchase or advertising information is handled under the applicable service and publisher policies. You may contact the relevant data protection authority if you have a complaint.