Privacy Policy

Data collection

Nivo – Bubble Level is an iPhone app provided by AppiOS. AppiOS does not collect personal data through Nivo. The app has no accounts, advertising, analytics, or tracking.

Motion and measurements

Nivo uses Apple’s Core Motion framework to read device motion while you measure. It uses these readings to calculate tilt, check level or plumb, and guide calibration. Nivo processes the readings on your iPhone and does not send them to AppiOS or any third party.

Live readings are processed in memory. Hold temporarily keeps the displayed reading in memory. Nivo does not keep a measurement history.

Preferences and calibration

Nivo saves calibration references and preferences, such as units, tolerance, target slope, and feedback settings, in the app’s iOS preferences so they are available next time you use it. Nivo does not send these values to a server.

You can clear saved calibration in Nivo’s Settings. To remove all local app data from your iPhone, choose Delete App in iOS.

Support and privacy requests

If you email AppiOS, we receive your email address and the information you choose to include. We use it to respond and retain it as needed to handle your request or meet applicable legal obligations.

For privacy questions or to request access to, correction of, or deletion of personal information you shared with us, email pro.appios@gmail.com.