Last updated: September 2026
Aquarium Plant Fertilizer (the "App") is published by Wuffworks. This policy describes what information the App handles. In short: the App collects no personal information, and anything you enter stays on your device — it is never transmitted to Wuffworks.
We collect no personal information. The App has no user accounts and no sign-in; it sends no data to any server; it uses no analytics, no tracking SDKs, and no advertising. The App does not request access to your location, contacts, photos, camera, microphone, or other protected personal data.
Your tank volume, unit preferences, teaspoon calibrations, dosing schedules, reminder settings, and dose history are stored locally by the App using Apple's standard on-device storage. The App does not transmit this information to Wuffworks or sync it through a Wuffworks service. Your device's operating-system backup settings may separately include app data in an Apple-managed backup. Deleting the App deletes its local data.
Pro upgrades are processed entirely by Apple through the App Store. We never receive or see your payment information.
The App collects no data from anyone, including children under 13.
If our data practices change, we will update this policy and publish the new version with the App. Where required, we will request permission before collecting or using data in a new way.
For privacy questions, contact us at totoland@wuffworks.com.