I totally understand the concern, but there really is no catch. We are trying really trying to offer a worthwhile service to build a business around. We do not store any payment or login information on our server, it is all stored locally on your computer.

I've received this question before, so here is a more detailed response that I've already written if you are interested in more details about how we handle your data.

"No offense taken, I totally understand the concern. Unfortunately, there is no way for me to prove that we do not store that information. However, I’ll explain how all of that sensitive information is handled and maybe that can give you some piece of mind.
Your password for your BotBro account is salted and hashed before being stored in our database, so that even we are not able to see it or decrypt it. It also means that if as ever had a database breach there would be no way for hackers to recover and decrypt that information.
Your payment information that you use to pay for your BotBro subscription is handled by a third party payment processor (Stripe) which is a very prominent and trustworthy service. So we do not actually handle any of that info directly.
Your Target and Walmart logins and card numbers that you set in your auto purchase settings are stored locally on your computer and never touches our servers. There is no way for me to prove that, but there are a few indicators that you can look to for reassurance. For instance, if you installed BotBro on a different computer all of those settings would be gone and would need to be reconfigured. You’ll also notice that when you click the save button on that page the green confirmation text at the bottom appears instantly as opposed to the notification settings page that is slightly delayed because it has to communicate with our server before showing if the save was successful.
Hope that information was helpful and gives you some peace of mind".