Last updated: April 21, 2026
This Privacy Policy explains how Cycle Serenity and Asariko ("we", "our", or "us") handle information when you use the Cycle Serenity mobile application and related website or services.
1. Summary
Cycle Serenity is designed with a privacy-first approach.
Cycle Serenity does not require an account and does not store your cycle data on external servers. Your data remains on your device.
We do not sell your personal data.
2. Information You Enter in the App
Cycle Serenity may allow you to enter information such as:
- cycle and period dates
- symptoms, notes, and daily logs
- preferences and app settings
- optional profile information such as a name or nickname
This information is stored locally on your device as part of the app experience.
3. Subscription and Purchase Information
If you purchase premium features, subscription and transaction processing may involve third-party platforms and services, including:
- Apple App Store
- Google Play
- RevenueCat or similar subscription infrastructure
We do not receive your full payment card details. Billing and payment processing are handled by the relevant store platform and service providers under their own privacy terms.
We may receive limited subscription-related information necessary to determine whether premium access is active, such as entitlement or transaction status.
4. Notifications
If you allow notifications, Cycle Serenity may schedule local reminders on your device, such as cycle reminders or daily logging reminders.
Notification content may be visible on your device’s lock screen depending on your device settings.
Cycle Serenity includes a setting to control this behavior ("Show detail text on lock screen"), which is disabled by default.
You are responsible for managing notification visibility preferences on your device.
5. How We Use Information
We use information only as needed to:
- provide core app functionality
- display your cycle records, logs, and predictions
- store your preferences
- determine premium access where applicable
- improve, maintain, and support the app
6. Data Sharing
We do not sell or rent your personal data.
We only share limited information when necessary to operate app infrastructure related to purchases, subscriptions, legal compliance, or platform functionality.
Examples may include:
- app store platforms for purchases and subscriptions
- subscription management providers such as RevenueCat
- legal or regulatory disclosures when required by law
7. Data Retention
Because core cycle and logging data is stored locally on your device, it remains there until you delete it, uninstall the app, or use in-app deletion tools.
Subscription and transaction-related records may be retained by app stores or third-party billing providers according to their own retention policies.
8. Your Control Over Data
You have full control over your data.
You can:
- edit or delete individual entries within the app
- delete all data using the in-app "Delete User" option (which removes cycle history, daily logs, and personal settings)
- permanently remove all data by uninstalling the app
We do not retain copies of your personal cycle data on our servers.
9. Data Security
We take reasonable steps to design the app with privacy and data minimization in mind. However, no method of storage or transmission can be guaranteed to be completely secure.
You are responsible for maintaining access security to your device.
10. Children’s Privacy
Cycle Serenity is not intended for children under 13, and we do not knowingly collect personal information directly from children under 13.
11. International Use
If you use Cycle Serenity from outside the country where our business is based, local laws may differ regarding privacy and data rights.
12. Future Changes
We currently do not use third-party analytics or crash reporting tools.
If future features introduce analytics, crash reporting, or cloud-based data storage, this Privacy Policy will be updated and clearly communicated before such features are used.
13. Changes to This Privacy Policy
We may update this Privacy Policy from time to time. If we do, we will post the updated version and revise the "Last updated" date above.
Continued use of Cycle Serenity after changes become effective means you accept the revised policy.
14. Contact
If you have questions about this Privacy Policy, you can contact us at:
Asariko is operated by Asar Aygul.
Email: team@asariko.net