Last updated: 2025.06.10
Welcome to ratine, developed by stone analog studio Inc. ("us", "we", or "our"). This Privacy Policy outlines our policies regarding the collection, use, and disclosure of personal information when you use our mobile application, ratine (the "Service"), and the choices you have associated with that information.
By using the Service, you agree to the collection and use of information in accordance with this policy. If you do not agree with our policies and practices, please do not use our Service.
1. Information Collection and Use
For a better experience while using our Service, we may require you to provide us with certain personally identifiable information. The information that we request will be retained by us and used as described in this privacy policy.
Data Collected:
- Event Data: We collect data about how you use our Service through a third-party analytics tool. This data may include information on your interactions with the Service, such as the features you use, the time spent on the app, and the frequency of your use. We do not collect any personal information such as names, addresses, or contact details. The purpose of collecting this data is to understand how our users interact with the Service to improve and optimize our offerings.
- TrueDepth Camera Usage: Certain features in our app, such as the “Smile Action”, use Apple’s TrueDepth API to detect facial expressions—specifically, whether you are smiling. This detection occurs entirely on-device in real time, and no facial data (including depth maps, facial geometry, or biometric identifiers) is collected, stored, shared, or transmitted. The app only uses the smile state (a simple yes/no result) to provide live feedback during the action. Once the action is completed, the detection result is discarded immediately and not retained.
2. Use of Data
stone analog studio Inc. uses the collected data for various purposes:
- To provide and maintain our Service
- To notify you about changes to our Service
- To allow you to participate in interactive features of our Service when you choose to do so
- To gather analysis or valuable information so that we can improve our Service
- To monitor the usage of our Service
- To detect, prevent, and address technical issues
3. Disclosure of Data
We do not sell, trade, or rent users' personal identification information to others. We may share generic aggregated demographic information not linked to any personal identification information regarding visitors and users with our business partners, trusted affiliates, and advertisers for the purposes outlined above.
4. Security of Your Information
At stone analog studio Inc., the security of your information is of paramount importance to us. We are committed to protecting the information you share with us and employ a variety of security measures to safeguard your personal data.