Privacy Policy
Last Updated: June 16, 2026
This Privacy Policy describes how ONYS (“we,” “us,” or “our”) collects, uses, and protects information in connection with the Cardiance mobile application (the “App”). By using the App, you agree to the practices described in this Privacy Policy.
1. About the App
Cardiance is a personal health-tracking tool that allows you to record and organize your blood pressure and pulse readings in one convenient place. The App is not a medical device and does not provide medical advice, diagnosis, or treatment.
2. Information We Collect
2.1 Health Data You Enter
The App allows you to manually enter the following information:
- Systolic and diastolic blood pressure readings
- Pulse (heart rate) readings
All health data you enter is stored exclusively on your device. We do not collect, transmit, access, or store this data on any external servers.
2.2 Information Collected by Third-Party Advertising
The free version of the App displays advertisements through Google AdMob, a mobile advertising service provided by Google LLC, to display advertisements.
AdMob may automatically collect and process certain information, including but not limited to:
- Device identifiers (such as the Advertising ID)
- IP address
- Approximate location
- Device information (model, operating system, language)
- App usage information
- Ad interaction data (such as impressions and clicks)
This information is used to:
- Display advertisements
- Measure advertising performance
- Prevent fraud and abuse
- Deliver personalized or non-personalized ads (depending on your consent and applicable laws)
Google may use the collected information in accordance with its own Privacy Policy.
For more information, please visit:
- Google Privacy Policy: https://policies.google.com/privacy
- How Google uses information from apps: https://policies.google.com/technologies/partner-sites
2.3 Information We Do Not Collect
We do not collect, store, or process:
- Names, email addresses, or other personally identifiable information
- Location data
- Device identifiers (such as IDFA) for our own purposes
- Usage analytics or behavioral data
- Any data through third-party analytics tools
3. How Your Data Is Used
The health data you enter is used solely for the following purposes:
- Local storage: To save your blood pressure and pulse records on your device so that you can access them at any time.
- Data visualization: To generate statistics based on your readings within the App.
- Data export: To allow you to export your records as CSV files for your personal use or to share with your healthcare provider at your discretion.
We have no access to your health data and do not use it in any way.
4. Data Storage and Security
All health data is stored locally on your device using the device’s built-in storage. We do not operate any servers that receive or store your data.
Please note that your device data may be included in iOS backups (including iCloud backups), depending on your device settings. These backups are governed by Apple’s terms and privacy policy, not ours.
You are responsible for maintaining the security of your device and any exported files.
5. Data Sharing
We do not sell, rent, trade, or otherwise share your health data with any third parties.
The only way your data leaves the App is if you voluntarily choose to export it using the built-in CSV export feature.
6. Children’s Privacy
The App is available to users of all ages. We do not knowingly collect personal information from children under the age of 13 (or the applicable age in your jurisdiction). Since all data is stored locally on the device and we do not collect any personal information, no special parental consent is required under the Children’s Online Privacy Protection Act (COPPA) or similar laws.
If you are a parent or guardian and believe your child has provided personal information to us, please contact us at the email address below.
7. Your Rights and Choices
Because all data is stored locally on your device and we do not have access to it, you have full control over your data at all times. You may:
- View, edit, or delete any recorded data directly within the App.
- Export your data in CSV format.
- Delete all App data by uninstalling the App or clearing its data through your device settings.
- Manage iCloud backup settings through your iOS device settings.
For California Residents (CCPA)
Under the California Consumer Privacy Act, California residents have the right to know what personal information is collected, request deletion, and opt out of the sale of personal information. Since we do not collect, store, or sell any personal information, these rights are inherently satisfied.
For Users in the European Economic Area and Ukraine (GDPR)
Under the General Data Protection Regulation, you have rights including access, rectification, erasure, and data portability. Since we do not collect or process any personal data on our servers, these rights are fulfilled by your direct control over the data stored on your device.
8. Third-Party Services
The App uses the following third-party services in the free version:
- Apple SKAdNetwork — for privacy-preserving ad attribution. SKAdNetwork does not track individual users and operates on aggregated data only.
We do not use any third-party analytics, crash reporting, or tracking tools.
9. Changes to This Privacy Policy
We may update this Privacy Policy from time to time. When we do, we will revise the “Last Updated” date at the top of this page. If the changes are significant, we will also notify you within the App. We encourage you to review this Privacy Policy periodically.
10. Contact Us
If you have any questions, concerns, or requests regarding this Privacy Policy or the App’s data practices, please contact us at:
ONYS Email: cardiance.help@gmail.com