It couldn’t be easier. We strongly support your right to privacy when using our apps.
The only information we can see is that which Apple anonymously shares with developers after the user has opted in - for example how many downloads or what type of device you are running Show StopWatch on, more information can be found here.
When handling support requests from you, we collect:
your email address (or Twitter handle, if you contact us via Twitter)
any information you provide voluntarily (such as crash logs or other diagnostic info)
This information is collected solely to help resolve your support inquiry. We retain support emails indefinitely in order to:
have context from previous interactions which may help us answer your future questions more quickly
identify broad trends in support requests, which may help us identify and solve problems with our products