Beware: Email goes to their servers, not client-only app – MailTime Pro Email Messenger Review

This "app" is actually a service and the creators hide this fact that can be derived from their Terms of Service. While it may be a good app, I deleted it as soon as I downloaded and read their Terms of Service. Apple should list apps that are also a service where your data goes on the app creator's servers. With this glaring policy absence, how can one trust data to creators that hide this fact?
Review by brutek on MailTime Pro Email Messenger.