Prep4CNA is a bilingual (English + Haitian Creole) study app for Nursing Assistant exam prep. This page explains, in plain language, what information the app collects, why, and the choices you have — for every person who installs it, whether or not you ever create a leaderboard nickname.
This policy covers the Prep4CNA mobile app, available on iOS and Android, and applies to everyone who installs it. It does not cover any other app, website, or service.
As you use the app, your answers to quiz questions, your accuracy, and your daily streak are saved in local storage on your phone. This information never leaves your device unless you choose to join the leaderboard (see 2.3).
The app assigns your device a random, anonymous identifier (via Firebase Anonymous Authentication) the first time it needs one. This identifier is not linked to your name, email, or any other personal information, and there is no sign-in screen — it happens automatically in the background. It exists so that, if you join the leaderboard, your device can update its own score without anyone else being able to update it for you.
Joining the leaderboard is optional and requires one deliberate action: picking a nickname. If you do, the following becomes visible to anyone using the app:
| What's shared | Example | Who can see it |
|---|---|---|
| Your chosen nickname | "QuizWhiz23" | Anyone using the app |
| Total correct answers | 142 | Anyone using the app |
| Total questions answered | 160 | Anyone using the app |
| Longest daily streak | 18 days | Anyone using the app |
Your individual quiz answers, which questions you got right or wrong, and your device identifier are never shown on the leaderboard — only the aggregate numbers above.
The app does not collect, request, or have access to:
The limited information described in Section 2 is used only to:
Leaderboard entries can currently only be removed by contacting us directly — there isn't yet a self-service delete button inside the app for a leaderboard entry specifically (local progress reset is instant and self-service, per above). We process removal requests promptly.
Local progress is retained on your device until you reset it or uninstall the app. Leaderboard entries are retained until you request removal (Section 6) or the leaderboard feature is discontinued.
Prep4CNA is designed for adults preparing for professional exam prep and is not directed at children. We do not knowingly collect information from children under 13.
Leaderboard data is protected by access rules that only allow a device to write its own entry, verified through the anonymous identifier described in Section 2.2 — no one can edit or impersonate another person's score. Quiz content is readable by the app but not editable by it. No method of transmission or storage is 100% secure, but we don't collect anything more sensitive than a self-chosen nickname and a score.
If this policy changes, we'll update the effective date at the top of this page. If a future change meaningfully expands what we collect, we'll also note it in the app's release notes.
Questions about this policy, or a leaderboard removal request, can be sent to info@ebold.tech