Privacy policy

For the Lumemo app and the website lumemo.jonasschaude.com · Last updated: October 2026 · The German version is legally binding.

The short version

• Lumemo needs no account and shows no ads.
• The app contains no tracking or analytics tools and sends no data to us or to third parties.
• Your records, your daily streak and your settings are stored on your device only.
• We only receive personal data if you choose to send us an email.

Controller

Data in the app

Stored on your device

So you can pick up where you left off, Lumemo stores the following locally on your device: records per game mode, the number of games played, your daily streak, your settings (sound, haptics, reduce motion, language), whether you have seen the introduction, and when the app last asked for a rating. This data is never sent to us. You can delete it in the settings under “Reset statistics”; deleting the app removes all data. If you back up your device via iCloud or another backup, this data – as with any app – is part of that backup.

No ads, no tracking

Lumemo uses no advertising networks, no analytics or tracking services and no cross-device identifiers. The app does not need an internet connection to play.

Rating, sharing, links

When you rate the app, Lumemo uses the rating dialog provided by Apple or Google. When you share a result or recommend the app, your device’s share sheet opens – you decide what you share and with whom; we receive nothing. Links to the privacy policy, legal notice and help open this website.

App stores

Lumemo is distributed via Apple’s App Store and, in future, Google Play. When you download the app, Apple or Google process data such as your account information under their own responsibility. If you have agreed in your device settings to share analytics with app developers, Apple or Google provide us with aggregated statistics and crash reports that cannot be traced back to you. Details can be found in the privacy policies of Apple and Google.

Contact by email

If you write to us – for example via “Feedback & ideas” or “Report a problem” in the app – we process your email address, the content of your message and the automatically attached app version and platform in order to reply and fix problems. The legal basis is Art. 6(1)(f) GDPR (our legitimate interest in answering enquiries) or Art. 6(1)(b) GDPR. We delete your message once it has been dealt with, unless statutory retention obligations apply.

Our mailbox is operated by Microsoft (Microsoft 365, Microsoft Ireland Operations Limited, One Microsoft Place, South County Business Park, Leopardstown, Dublin 18, Ireland). Microsoft processes emails on our behalf under a data processing agreement (Art. 28 GDPR). A transfer to the USA cannot be ruled out; it takes place on the basis of the EU-US Data Privacy Framework, under which Microsoft is certified (Art. 45 GDPR).

This website

This website uses no cookies and no analytics tools and does not load content from third-party servers; fonts and images are delivered together with the site. If you switch languages using the link in the footer, your browser remembers this choice in its local storage; this information never leaves your browser.

When you visit the site, our hosting provider processes technically necessary data (IP address, date and time, page requested, browser information) in server log files in order to deliver the site and protect it from abuse. The legal basis is Art. 6(1)(f) GDPR.

Our hosting provider is Vercel Inc., 440 N Barranca Ave #4133, Covina, CA 91723, USA. Vercel processes this data on our behalf under a data processing agreement (Art. 28 GDPR). Data is transferred to the USA on the basis of the EU-US Data Privacy Framework, under which Vercel is certified (Art. 45 GDPR). How long Vercel keeps log data is described in Vercel’s privacy policy.

Your rights

You have the right of access (Art. 15 GDPR), rectification (Art. 16), erasure (Art. 17), restriction of processing (Art. 18), data portability (Art. 20) and the right to object to processing based on legitimate interests (Art. 21). Just write to us at lumemo@jonasschaude.com.

You can also lodge a complaint with a data protection supervisory authority. The authority responsible for us is:

Children

Lumemo is suitable for all ages. As the app does not collect personal data, no data of children is processed either.

Changes

As Lumemo evolves, we will update this policy. The version published here applies.