ECHO — Privacy Policy

Last updated: 19 August 2026

This policy explains what data the mobile game ECHO (package com.technovo.echo) processes, why, and what control you have. It is written to match what the app actually does.

The game is published by TechnOVO Sp. z o.o., ul. Domanice 69, 55-081 Domanice, Poland (NIP 8961596096) ("we", "us"). For any privacy question, contact admin@baseai.pl.

Short version

ECHO has no accounts. We never ask for your name, email or phone number.
Your progress, statistics and settings stay on your device.
Third-party services (ads, analytics, crash reporting, payments) do collect technical data. They are listed below.
In the EEA and the UK you are asked for consent before personalised ads, and you can change that choice at any time in Settings → Privacy options.

Data stored on your device only

Completed levels, stars, best move counts, play time, hints, daily streak, audio/vibration/language settings and whether you bought "Remove Ads". This data never leaves your device and is deleted when you uninstall the game.

Third-party services

Service	Provider	What it processes	Why
Google AdMob	Google	Advertising ID, IP address (approximate location), device and app info, ad interactions	To show rewarded and interstitial ads and to prevent ad fraud
Google User Messaging Platform	Google	Your consent choice, stored on the device	To ask for and record ad consent where the law requires it
Firebase Analytics	Google	App instance identifier, device and OS info, in-app events (level started/completed/failed, hints, ad events)	To understand which levels are too hard and improve the game
Firebase Crashlytics	Google	Crash reports, device state and app version at the time of a crash	To find and fix crashes
Google Play Billing	Google	Purchase confirmation for "Remove Ads"	To process and restore the purchase. We never see your payment details.

These providers act as independent controllers or processors for the data they collect. See Google's Privacy Policy and how Google uses data in AdMob.

Legal basis (GDPR)

Consent — personalised advertising in the EEA/UK, collected through the Google consent form and revocable at any time.
Legitimate interest — crash reporting, non-personalised advertising, and aggregate analytics needed to keep the game working and to improve it.
Contract — processing a purchase you chose to make.

Children

ECHO is not directed to children. We do not knowingly collect data from children under the age required by local law. If you believe a child provided data through the app, contact us and we will remove it.

Retention

On-device data lives until you uninstall the game or use "Reset progress". Analytics and crash data are retained by Google according to their published retention settings (analytics event data: up to 14 months; crash data: up to 90 days), unless we shorten it in the Firebase console.

Your rights

Depending on where you live you may request access, correction, deletion, restriction, portability, or object to processing. Write to admin@baseai.pl. You also have the right to complain to your local data protection authority.

How to control your data in the app

Settings → Privacy options — change or withdraw ad consent.
Settings → Reset progress — erase all local progress.
Android Settings → Privacy → Ads — reset or delete your Advertising ID.
Uninstalling removes all locally stored data.

Changes

If this policy changes materially we will update the date above and, where required, ask for consent again.