Curvia
Living math, made beautiful.
Privacy PolicyCurvia has no accounts and no sign-in. Everything you make stays on your device. The only data that leaves the app is a small set of anonymous ad-measurement events, described below.
What we collect
Curvia itself collects nothing: no accounts, no sign-in, and no access to your content. To measure whether our advertising works, the app includes the Meta (Facebook) SDK, which reports a limited set of app events — described in the next section — and nothing else. We never see or receive your artworks, your photos, your name, or anything that identifies you personally.
Advertising measurement
We run ads for Curvia on Meta platforms (Facebook and Instagram). To know whether those ads lead to installs and purchases, the app sends Meta a small set of events: that the app was installed and opened, and that an in-app purchase was completed (with its price). These events include basic device information such as device model, OS version, and language.
- Curvia does not show ads inside the app.
- Curvia does not request App Tracking Transparency permission and does not access your advertising identifier (IDFA).
- Attribution uses Apple's privacy-preserving SKAdNetwork framework, which reports aggregated campaign results without identifying individual users.
- We configure the Meta SDK with advertiser tracking disabled, so these events are not to be used to track you across other apps and websites.
Meta processes this data as described in the Meta Privacy Policy.
Your creations
The artworks you generate and the pieces you save to your collection are stored only on your device (in the app's local storage). They are never uploaded to us or anyone else.
Photos access
When you choose to save an image, video, or live wallpaper, Curvia asks for permission to add to your photo library. This access is add-only — Curvia can save the file you exported, but cannot read, browse, or access any of your existing photos.
In-app purchase
Curvia Pro is a one-time purchase processed entirely by Apple through the App Store. Curvia never receives your payment details. Whether you own Curvia Pro is determined on-device via Apple's StoreKit; no purchase data is sent to us.
Children
Curvia is suitable for all ages. It shows no ads inside the app, has no external links to user-generated content, and the ad-measurement events described above contain nothing that identifies an individual user.
Changes
If this policy ever changes, the updated version will be posted on this page with a new date.
Contact
Questions about privacy? Email b@guannian.com.