Nail Exam Prep (Vietnamese) (Android package com.tuanapps.nailvi) is published by Tuan Apps. Last updated: 2026-10-16.
Your answers, saved questions, exam history and settings are stored only on your device. The app has no user accounts and we do not run servers that receive this data. Uninstalling the app or using “Reset progress” deletes it.
The app shows no ads, does not use the advertising ID and contains no analytics or tracking. We do not collect personal data.
The optional one-time purchase is processed by Google Play. We do not receive your payment details; Google Play tells the app only whether the purchase is active.
The app is a study tool for adults preparing for a professional license exam and is not directed to children under 13.
Questions or deletion requests: tuanlt1989@gmail.com
We will post any changes to this policy on this page.