Privacy Policy

Who we are

Groovalizer is made by Max Kucera ("we", "us"), the developer named on its App Store and Google Play listings. This policy covers the Groovalizer app for iPhone, iPad and Android. You can reach us at groovalizer8@gmail.com.

The short version

Groovalizer turns music into visuals on your device. We do not sell your data, we do not show ads, and we do not track you across other apps or websites.

We collect anonymous usage data to understand what works and to fix problems, and our payment provider processes subscriptions. You can turn usage data off at any time in Settings.

Microphone

When you turn on Listen, Groovalizer analyses the sound around you so the visuals can move with it. This happens entirely on your device, in real time. Audio is not stored and is never sent to us or anyone else.

The only time microphone audio is kept is when you record a clip in Listen mode: the few seconds you record become the soundtrack of the video, which is saved on your device. It is only shared if you choose to share it.

Your songs, photos and videos

Songs you import are copied into the app on your device so they can play and drive the visuals. Photos you choose for the fractals are processed on your device. Videos you make are created on your device and saved to your photo library only when you tap Save.

None of these files are uploaded to us.

Usage data (analytics)

We use PostHog, an analytics service, to receive anonymous information about how the app is used: for example which screens are opened, which visuals are played, whether an export succeeded, how long a session lasted, the app version, device model and operating system, and error reports when something breaks.

This data is linked to a random identifier created when you install the app, not to your name, email or phone number. PostHog uses your IP address to estimate your approximate location (country and city).

You can turn this off in Settings → Privacy → Share usage data. When it is off, the app sends no analytics.

Purchases

Subscriptions are sold and billed by Apple (App Store) or Google (Google Play). We never see your payment details.

We use RevenueCat to check whether you have an active subscription. RevenueCat receives your purchase receipts and a random app user identifier. We connect that identifier to the anonymous analytics identifier so we can understand which features lead people to subscribe.

App updates and new visuals

The app checks for updates through Expo (EAS Update), which receives the app version, your platform and a random installation identifier. It also checks groovalizer.space for new visuals. Like any web request, these reveal your IP address to the server, which keeps it only in short-lived logs.

Notifications

If you allow notifications, reminders (for example the Visual of the Day, or a reminder before a free trial ends) are scheduled on your device. We do not use a push notification server.

How long we keep data

We keep analytics data only while it helps us improve the app, then delete it. Purchase records are kept as long as needed for accounting and to restore your purchases. Everything stored on your device is deleted when you delete the app.

Your choices and rights

You can turn off analytics in Settings, deny or revoke microphone, photo and notification permissions in your device settings, and delete the app at any time. Depending on where you live (for example the EU, UK or California), you may have the right to access, correct or delete personal data we hold. Email groovalizer8@gmail.com with your request; include the Support ID shown in Settings → About so we can find the anonymous data linked to your install.

Children

Groovalizer is not directed to children under 13, and we do not knowingly collect personal data from children.

Changes and contact

If we change this policy, we will update the date above and, for significant changes, tell you in the app.

Questions? Email groovalizer8@gmail.com.