I am looking to add an app for recurring payments for subscriptions. A couple times I have gone out to look at different Apps for my site, It says that that App will have access to and can change any and all information including descriptions, products, orders, etc. I have immediately closed the app page, never installing anything in fear.
Doesn’t this seem pretty dangerous that they could wipe out my entire site or make detrimental changes that I am unaware of?
To add to what drakedev said, apps go through a Shopify review process before getting published. One check from Shopify is to ensure the app only requests for the permissions that are needed for the app to operate, at a minimum. So, the chances of something malicious happening is extremely low.