OlympiaPrep Privacy Policy

Effective: 24 October 2026. This policy covers the Android app OlympiaPrep: Math & English (package com.plycoder.OlympiaPrep) published by plycoder, and this website.

The short version

• The app works completely offline. The whole question bank is inside it.
• There are no accounts, no sign-in, no advertising and no analytics in the app.
• Everything a learner does (explorer names, class, stars, answers, mistake book, settings) is stored only on the device.
• We do not collect, receive or sell personal information from the app.

Who we are

OlympiaPrep is developed and published by plycoder (Md Mahabubur Rahman), Dhaka 1236, Bangladesh. Contact: tulx.app@gmail.com.

Data stored on the device

The app keeps a local database with up to six explorer profiles. For each explorer it stores the name typed when the profile was made, the chosen badge, group and class, subject, stars and medals, finished and unfinished quests with the answers given, the mistake book, weekly check-ins, competition checklist ticks, puzzle progress, and settings such as timer, read-aloud and reading speed. The device's reduce-motion setting is read to turn animations off.

This information never leaves the device through the app. It is not sent to us or to anyone else. Android's own backup, if the device owner has turned it on, is controlled by Android and Google, not by this app.

Deleting data

• One explorer: open the badge in the top right, choose the explorer's profile and tap Remove. A grown-up sum is asked first. Everything saved for that explorer is deleted at once and cannot be brought back.
• Everything: uninstall the app, or clear its storage in Android settings.

Because nothing is stored on our side, there is nothing for us to delete; if you have any question about this, write to tulx.app@gmail.com.

Read aloud

Questions and hints can be spoken by your device's own text-to-speech engine. The app hands the text to that engine on the device; which engine is used, and whether it works offline, is set in Android's accessibility or language settings and governed by that engine's provider.

Internet use

The app has the Internet permission for two optional features:

• Competition links. The Compete tab can open an organiser's website in your browser. The app asks before it opens anything, and what happens on that site is covered by its own privacy policy.
• Question-bank updates. A build of the app can be configured to check a plycoder web address for a newer set of question files. That request carries no personal data and no identifier about you or the device; like any web request it reveals the requesting IP address to our web server, which keeps ordinary server logs for a short time for security and troubleshooting. The downloaded files are checked (size, SHA-256, answer keys) before they are used. Without this configuration, nothing in the app touches the network.

Children

OlympiaPrep is made for learners from age three upwards and for the adults who help them. The app does not collect personal information from anyone, so none is collected from children. A child may type a name for an explorer profile; that name stays on the device. There are no in-app purchases, no advertising, no social features and no messaging.

Third parties

The app contains no advertising, analytics or tracking SDKs. It uses open-source libraries for local storage (SQLite), text-to-speech and opening links, none of which send data to us.

This website

olympiaprep.tulx.app is a static site. It sets no cookies, uses no analytics and loads nothing from third-party servers. Our web server keeps standard access logs (IP address, requested page, browser type) for a short time for security.

Changes

If a future version adds a feature that changes how data is handled, this page will be updated with a new effective date before that version is released.

Contact

plycoder · Dhaka 1236, Bangladesh · tulx.app@gmail.com