Privacy Policy

Last updated: February 12, 2026.

Consent

By using our Service, you hereby consent to our Privacy Policy and agree to its terms.

Owner and Data Controller

appilis LLC
Route de Blonay 40
1800 Vevey
Switzerland

Personal Data Collected

Authentication

To use the Writis app, you need to create an account using either a Google or an Apple account.

We only store the email address associated with your account and the provider (Google or Apple) you used to create it.

You can delete your account at any moment from the app.

Profiles

You can create profiles in the app. For each profile, you must provide a name, a birth month, and a birth year. The name can be anything and is only used by you to identify the profile.

The birth month and birth year can be used for the handwriting assessment scoring system.

You can edit or delete a profile at any moment from the app.

Handwriting samples

Handwriting samples you provide may be used to train and improve our models, and anonymised data may be licensed to other companies.

You can enable or disable this in the app privacy settings.

Third party services

We use third party services that may collect personal data, they are listed below.

Authentication

To let you sign in and securely access your account, we use Firebase Authentication. To learn more about this service and its privacy policy, please visit:

https://firebase.google.com/support/privacy

This service is required to use the app and cannot be disabled.

App Analytics

To help us better understand how people use our Service, we use Google Analytics for Firebase. To learn more about this service and its privacy policy, please visit:

https://policies.google.com/privacy

You can enable or disable this service in the app privacy settings.

App Protection

To help protect our Service from abuse, we use Firebase App Check. To learn more about this service and its privacy policy, please visit:

https://firebase.google.com/support/privacy

This service is required to use the app and cannot be disabled.

Crash Reporting

To help us fix bugs, we use Firebase Crashlytics. To learn more about this service and its privacy policy, please visit:

https://firebase.google.com/support/privacy

You can enable or disable this service in the app privacy settings.

Children's Privacy

You must be 13 years of age or older to use the Service. We do not knowingly collect personal information from children under 13. Moreover, if you are younger than 18, your parent or legal guardian must read and accept this Privacy Policy on your behalf.

Changes

We may update this Privacy Policy from time to time and will notify you of any changes by publishing the new policy on this page. Any changes are effective immediately on publishing and you are advised to review this page periodically.

Contacting Us

If you have any questions about this Privacy Policy, please contact us at [email protected].