Your data privacy is taken very seriously. Reformat does not collect any private information, nor does it collect any information which is not directly contributing to the apps functionality.
The image conversion fully takes place on-device, which means your images do not leave your device during the image conversion. (Unless you share them after conversion, obviously.)
The app uses RevenueCat to manage In-App Purchases. RevenueCat collects a anonymous information about your purchases within the app, which is used e.g. in order to provide statistics for the dashboard and to prevent fraud by validating your purchase receipts. More information can be found in RevenueCat’s privacy policy.
Apart from that Reformat does not collect any anonymous data.
If you have any questions regarding this privacy policy feel free to reach out to mail@saschagordner.de.