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Last Updated: March 05, 2026
Last Updated: March 05, 2026
1. Introduction
This Privacy Policy applies to the Sproochentest mobile application (hereinafter referred to as the "Application") created by Fly Infinity (hereinafter referred to as the "Service Provider"). This Application is designed to assist users in preparing for the Luxembourgish language citizenship exam.
2. Disclaimer & Government Affiliation Independent Tool:
This Application is an independent educational tool developed by Fly Infinity. It is NOT a government application.
Non-Affiliation: This Application is NOT affiliated with, endorsed by, or connected to the Institut National des Langues (INL), the Ministry of Education, or the Luxembourgish Government.
Source of Information: All information regarding the exam format, structure, and curriculum provided within this Application is based on publicly available data sourced from the official website of the Institut National des Langues (INL): https://www.inll.lu/en/
Please refer to the official INL website for the most up-to-date exam schedules, binding regulations, and official registration.
3. Log Data
We want to inform you that whenever you use our Service, in a case of an error in the app, we collect data and information (through third-party products) on your phone called Log Data. This Log Data may include information such as your device Internet Protocol (“IP”) address, device name, operating system version, the configuration of the app when utilizing our Service, the time and date of your use of the Service, and other statistics.
4. Information Collection and Use
To provide a personalized learning experience, the Application collects and processes certain personally identifiable information.
A. Personal Data Provided by You
Account Information: When you sign in via Google Sign-In, we collect your name, email address, and profile picture URL. This data is used to create your user profile, synchronize your progress, and manage your subscription.
Authentication: We use Firebase Authentication to securely manage your access to the Application.
B. Financial and Subscription Data
In-App Purchases: The Application offers a "Premium" subscription. All transactions are processed securely through the Google Play Billing System. We do not store your credit card or bank details; however, we collect your purchase history to grant access to premium features and manage your subscription status.
C. Third-Party Services
The Application utilizes the following third-party services that may collect information used to identify you:
Google AdMob: Used to serve advertisements. AdMob may collect device identifiers (Advertising ID), IP addresses, and usage data to show personalized ads to non-premium users. For more information on how Google collects and uses data, please review the Google Privacy Policy and How Google uses information from sites or apps that use our services.
Google Play Services: Used for app functionality, including Google Sign-In and Billing.
Firebase (Firestore, Auth, and Cloud Storage): Used for database management, secure user authentication, and streaming educational media content, such as Study Songs and pronunciation audio tracks.
Sproochmaschinn.lu API: Used for text-to-speech and speech-to-text functionality. Text strings and temporary voice recordings are transmitted securely strictly for language processing. No personally identifiable information is shared with or stored by this service.
Managing Your Consent: You can modify your ad consent preferences at any time by opening the app and navigating to Settings > Privacy Settings.
5. AI-Generated Content Transparency
The Application utilizes artificial intelligence to generate specific educational content to enhance your learning experience:
Visual Content: AI-generated images are used within study topics (such as "Picture Description"). These images are synthetically generated and do not represent real individuals, locations, or copyrighted entities. They are used strictly as visual aids for language practice.
Audio Content ("Study Songs"): The musical tracks featured in the "Study Songs" section are entirely original compositions produced in-house using artificial intelligence. These tracks are synthetically generated exclusively for educational purposes and do not sample, replicate, or infringe upon any existing copyrighted music, lyrics, or artist likenesses.
6. Data Storage and Retention
Personal Data: Your email, display name, and account details are stored securely via Firebase Firestore and Firebase Authentication as long as your account remains active.
Data Deletion: You have the right to request the permanent deletion of your account and all associated personal data.
How to Delete: You can initiate a deletion request by following the instructions on our dedicated Account Deletion Request Page or by emailing us directly at fly.infinity.official@gmail.com with the subject "Delete My Account".
Timeline: We will process your deletion request and remove your personal profile and subscription identifiers within 30 days.
7. Permissions
The Application requires the following permissions to function:
Internet Access: To connect to Firebase, AdMob, Google Play Billing, and the Text-to-Speech API.
Network State: To check for connectivity before attempting to load data or ads.
Microphone / Record Audio: Required exclusively for the Accent Checker feature to record your voice and provide pronunciation feedback. The Application only accesses the microphone when you actively use this feature, and it does not listen to or record audio in the background.
8. Links to Other Sites and External Media
This Service streams external media content i.e Radio Stations. If you listen to an external radio stream, you will be connected to that server. Note that these external servers are not operated by us. Therefore, we strongly advise you to review the Privacy Policy of these websites. We have no control over and assume no responsibility for the content, privacy policies, or practices of any third-party sites or services.
9. Security
We value your trust in providing us your Personal Information, thus we are striving to use commercially acceptable means of protecting it. But remember that no method of transmission over the internet, or method of electronic storage is 100% secure and reliable, and we cannot guarantee its absolute security.
10. Children’s Privacy
The Application does not knowingly collect personally identifiable information from children under the age of 13. In the case we discover that a child under 13 has provided us with personal information, we immediately delete this from our servers. If you are a parent or guardian and you are aware that your child has provided us with personal information, please contact us so that we will be able to do necessary actions.
11. GDPR Data Protection Rights (European Economic Area)
For users in the European Union, we process data based on:
Consent: When you sign in with Google or accept personalized ads.
Contractual Necessity: To provide the premium features you have purchased.
Legitimate Interest: To maintain and improve the educational content of the Application.
The right to withdraw consent: You have the right to withdraw your consent at any time where Sproochentest relied on your consent to process your personal information. You can do this within the app by navigating to Settings > Privacy Settings.
12. Changes to This Privacy Policy
We may update our Privacy Policy from time to time. You are advised to review this page periodically for any changes. We will notify you of any changes by posting the new Privacy Policy on this page. These changes are effective immediately after they are posted on this page.
13. Contact Us
If you have any questions or suggestions about our Privacy Policy, do not hesitate to contact us.
Developer: Fly Infinity
Website: https://flyinfinity.github.io
Account Deletion Instructions: https://sites.google.com/view/sproochentest-help/
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