This Privacy Policy applies to the mobile application "Mosaic of Signs" (hereinafter referred to as "App") and informs you about the nature, scope, and purpose of the processing of personal data within this App.
Controller pursuant to Art. 4 (7) GDPR:
Janko Buve
Postfach 140151
33621 Bielefeld
Germany
Email: info@juvelop.de
Website: https://juvelop.de
The controller determines the purposes and means of processing personal data.
When using the App, the following technical data is automatically processed:
Legal basis: Art. 6 (1) lit. b GDPR (performance of contract) and Art. 6 (1) lit. f GDPR (legitimate interest in technical functionality and improvement of the App).
The App uses Google Play Services, a service provided by Google Ireland Limited, Gordon House, 4 Barrow Street, Dublin 4, Ireland.
Google Play Services automatically processes technical data such as device IDs, operating system version, and app usage data to provide App functionality, updates, and error diagnostics.
Legal basis: Art. 6 (1) lit. b GDPR (performance of contract).
Data transfer: Your data is transferred to the USA. Google is certified under the EU-U.S. Data Privacy Framework, thereby ensuring an adequate level of data protection. In the event that the adequacy decision is suspended or revoked, data transfers will be safeguarded through alternative mechanisms such as Standard Contractual Clauses pursuant to Art. 46 GDPR.
More information: https://policies.google.com/privacy
The App uses Google AdMob, an advertising service provided by Google Ireland Limited, to finance the free App offering.
Data processed:
Purpose: Serving advertisements, measuring ad performance, fraud prevention, and optimizing ad delivery.
Legal basis: Art. 6 (1) lit. f GDPR (legitimate interest in financing the free App offering through advertising revenue, which enables us to provide the App at no cost to users).
Ad-free version: Users who prefer not to see advertisements can purchase an ad-free version of the App through in-app purchase. When the ad-free version is activated, no advertising data is processed through Google AdMob, and the related data processing activities described in this section do not apply.
Consent for users in EEA, UK, and Switzerland: For users in the European Economic Area, the United Kingdom, and Switzerland, consent is obtained through the Google User Messaging Platform (UMP) at each App launch. You can choose between:
Legal basis with consent: Art. 6 (1) lit. a GDPR and § 25 (1) TDDDG (German Telecommunications Telemedia Data Protection Act).
Withdrawal of consent: You can withdraw your consent at any time in the App settings under "Privacy Settings." Alternatively, you can purchase the ad-free version to completely avoid advertising-related data processing. The withdrawal does not affect the lawfulness of processing based on consent before its withdrawal.
Data transfer: Your data is transferred to the USA. Google is certified under the EU-U.S. Data Privacy Framework. In the event that the adequacy decision is suspended or revoked, data transfers will be safeguarded through alternative mechanisms such as Standard Contractual Clauses pursuant to Art. 46 GDPR.
More information:
The App offers in-app purchases, including the option to remove advertisements. In-app purchase transactions are processed through the respective app store (Google Play Store or Apple App Store) and are subject to their privacy policies and terms of service.
Data processed:
Purpose: Processing and verifying in-app purchases, providing purchased features (such as ad-free experience).
Legal basis: Art. 6 (1) lit. b GDPR (performance of contract).
Storage duration: Purchase data is stored for the duration necessary to provide the purchased service and for accounting purposes, typically until the App is uninstalled or the purchase is refunded.
The App uses Matomo, a privacy-friendly open-source web analytics software operated on our own server.
Data processed:
Purpose: Analyzing user behavior to improve the App, identifying technical issues, and optimizing user experience.
Legal basis: Art. 6 (1) lit. f GDPR (legitimate interest in analyzing and improving the App's functionality, performance, and user experience to provide better service to our users).
Special feature: The Matomo instance is hosted on our own servers in Germany. All data remains under our complete control and is not shared with third parties.
Anonymization: IP addresses are anonymized before storage. No cookies are used to recognize users.
Note on consent: Due to complete data anonymization and self-hosted operation on German servers, processing can be performed without prior consent based on legitimate interest. Nevertheless, you can object to processing at any time via the App settings under "Privacy Settings".
Storage duration: Anonymized statistical data is automatically deleted after 24 months.
More information: https://matomo.org/privacy-policy/
The App requires the following device permissions:
You can revoke granted permissions at any time in your device's system settings.
Personal data is only shared with the following recipients:
No sharing with other third parties occurs unless we are legally obligated to do so or you have expressly consented.
As part of using Google services (AdMob, Google Play Services), data is transferred to the USA. Google LLC is certified under the EU-U.S. Data Privacy Framework, which ensures an adequate level of data protection.
In the event that the adequacy decision for the EU-U.S. Data Privacy Framework is suspended or revoked, data transfers will be safeguarded through alternative mechanisms such as Standard Contractual Clauses pursuant to Art. 46 GDPR or other appropriate safeguards.
More information: https://www.dataprivacyframework.gov/
You have the following rights under the GDPR:
To exercise these rights, please contact: info@juvelop.de
You have the right to object, on grounds relating to your particular situation, at any time to processing of personal data concerning you which is based on Art. 6 (1) lit. f GDPR (legitimate interest).
This applies to the following processing activities:
If you object, we will no longer process your personal data unless we can demonstrate compelling legitimate grounds for the processing which override your interests, rights and freedoms, or for the establishment, exercise or defense of legal claims.
Alternative to objection: For advertising-related processing, you can also purchase the ad-free version of the App to completely avoid advertising-related data processing.
To exercise your right to object, please contact: info@juvelop.de or use the privacy settings within the App.
You have the right to lodge a complaint with a data protection supervisory authority about the processing of your personal data.
Competent supervisory authority for North Rhine-Westphalia, Germany:
State Commissioner for Data Protection and Freedom of Information North Rhine-Westphalia
Kavalleriestraße 2-4
40213 Düsseldorf, Germany
Phone: +49 211 38424-0
Email: poststelle@ldi.nrw.de
Website: https://www.ldi.nrw.de
We implement technical and organizational security measures to protect your data against accidental or intentional manipulation, loss, destruction, or access by unauthorized persons. Our security measures are continuously improved in accordance with technological developments.
There is no automated decision-making, including profiling pursuant to Art. 22 GDPR.
This App is not specifically directed at children under 13 years of age (COPPA) or under 16 years of age (GDPR). We do not knowingly collect personal data from children under these age limits without appropriate parental or guardian consent.
If we become aware that we have collected personal data from a child under the applicable age limit without proper consent, we will take steps to delete such information promptly.
Parents and guardians who believe that their child has provided personal data to us may contact us at info@juvelop.de to request deletion of such data.
This App complies with the data disclosure requirements of Google Play's Data Safety section and Apple's App Privacy Details. The information provided in those sections is consistent with this Privacy Policy and reflects our actual data collection and sharing practices.
We reserve the right to occasionally update this Privacy Policy to ensure it always complies with current legal requirements or to implement changes to our services. The new Privacy Policy will then apply to your next visit.
Last updated: October 26, 2025
By downloading, installing, or using the "Mosaic of Signs" mobile application (the "App"), you agree to be bound by these Terms and Conditions. If you do not agree to these terms, do not use the App.
We grant you a limited, non-exclusive, non-transferable, revocable license to use the App solely for your personal, non-commercial use on devices you own or control, subject to these Terms and Conditions.
You may not:
The App may offer in-app purchases, including the option to remove advertisements. All transactions are processed through your device's app store (Google Play Store or Apple App Store) and are subject to their respective terms and conditions. Purchases are final and non-refundable except as required by applicable law.
The App and all its content, features, and functionality are owned by Janko Buve and are protected by copyright, trademark, and other intellectual property laws. You retain ownership of any content you create within the App, but grant us a license to use such content for the operation and improvement of the App.
The App uses third-party services including Google Play Services, Google AdMob, and Matomo Analytics. Your use of these services is subject to their respective terms and privacy policies. We are not responsible for the availability or functionality of these third-party services.
Your privacy is important to us. Please review our Privacy Policy, which explains how we collect, use, and protect your information when you use the App. By using the App, you consent to the collection and use of information as described in our Privacy Policy.
This license is effective until terminated. We may terminate or suspend your access to the App at any time, with or without cause or notice. You may terminate this license by deleting the App from your device. Upon termination, your right to use the App ceases immediately.
THE APP IS PROVIDED "AS IS" WITHOUT WARRANTIES OF ANY KIND, EXPRESS OR IMPLIED. TO THE MAXIMUM EXTENT PERMITTED BY LAW, WE DISCLAIM ALL WARRANTIES AND SHALL NOT BE LIABLE FOR ANY DAMAGES ARISING FROM YOUR USE OF THE APP, INCLUDING BUT NOT LIMITED TO DIRECT, INDIRECT, INCIDENTAL, PUNITIVE, AND CONSEQUENTIAL DAMAGES.
The App requires a compatible mobile device and internet connection for certain features. You are responsible for any data charges incurred. We recommend using the App on secure, non-compromised devices for optimal functionality.
We may provide updates, patches, or new versions of the App. While we may provide maintenance and support, we are under no obligation to do so. Updates may be required for continued use of the App.
These Terms and Conditions are governed by the laws of Germany. Any disputes arising from these terms or your use of the App shall be subject to the exclusive jurisdiction of the courts in Bielefeld, Germany.
We reserve the right to modify these Terms and Conditions at any time. We will notify users of material changes through the App or other reasonable means. Your continued use of the App after changes constitutes acceptance of the new terms.
If any provision of these Terms and Conditions is found to be unenforceable, the remaining provisions will remain in full force and effect.
If you have questions about these Terms and Conditions, please contact us:
Janko Buve
Postfach 140151
33621 Bielefeld, Germany
Email: info@juvelop.de
Website: https://juvelop.de
Last updated: October 26, 2025