As a rule, Jera Design apps never track any personally identifiable information. If you choose to allow Apple to share analytic data with developers, your uses of the app will be aggregated with other users and the totals shown to us by Apple. To stop sending this data to app developers, go to Settings -> Privacy -> Analytics & Improvements, and Slide the “Share With App Developers” switch to off.
Details on specific apps are below:
Suggestifier: Suggestifier does not transmit any data to anyone.
ResistorVision: ResistorVision does not transmit any data to anyone.