Grammar Studio is an English-learning application published by Phi Van Son (also referenced as Son Phi). This Privacy Policy explains how information is processed when using the Grammar Studio iOS application.
1. Learning Data & Storage
Grammar Studio stores quiz scores, bookmarks, mistake logs, learning streaks, review schedules, study goals, and preferences directly on your device. When iCloud is enabled on your iOS device, a learning snapshot may be synchronized through your private iCloud key-value store so your progress can be restored across your personal devices.
Grammar Studio does not operate a central user account server and does not directly collect or store your name, email address, passwords, contacts, precise location, or payment-card details on any external developer server.
2. Advertising & Privacy Consent Framework
The free version of Grammar Studio uses Google Mobile Ads (AdMob) and Google's User Messaging Platform (UMP). Depending on your consent choices, device settings, geographic region, and Google's ad-serving mode, Google may process an IP address or IP-derived general location, device identifiers, advertising performance data, product interactions, crash logs, and performance diagnostics for advertising, analytics, fraud prevention, security, and service delivery.
The app requests required privacy choices before loading ads and requests App Tracking Transparency (ATT) authorization before accessing identifiers used to track user activity across other companies' apps or websites. Premium users do not load advertisements. You can review or adjust your advertising privacy choices at any time from Grammar Studio Settings.
For detailed information on Google's data handling, please refer to Google's Privacy Policy and Google Mobile Ads Data Disclosure.
3. In-App Purchases and Local Notifications
Premium purchases are processed and verified directly by Apple through StoreKit APIs. Grammar Studio never receives or stores your credit card or payment financial details.
Study reminders are local iOS notifications scheduled locally on your device. You can customize reminder times or disable notifications completely via iOS Settings at any time.
4. Diagnostics Packages and Question Reports
Apple MetricKit crash and performance diagnostics are retained locally on your device. Grammar Studio does not transmit these diagnostics automatically. A diagnostics package containing app/device version information, recent privacy-safe app events, and available MetricKit payloads is shared ONLY when you explicitly choose Share diagnostics package in Support.
When you report an inaccurate or bad question, the app stores the question ID, selected reason, optional note, app version, report ID, and date locally. The report is transmitted to our support team only when you choose to send the prepared email.
5. Retention, Data Deletion, and User Control
Your learning data remains on your device and in your private iCloud key-value store until it is reset or removed by you. You have full control to:
- Disable study notifications in iOS Settings.
- Manage advertising privacy choices in Grammar Studio Settings.
- Change tracking permissions under iOS Settings > Privacy & Security > Tracking.
- Delete learning progress completely using Reset all progress in app settings while connected to iCloud to clear synced snapshot data.
6. Canonical Policy & Contact Information
The canonical published version of this Privacy Policy is available online at https://english-grammar-landing.vercel.app/privacy.html.
If you have any questions, suggestions, or concerns regarding this policy, please contact us at:
Support Email: pvsasoftware@gmail.com