> They will always tell you if one of their recipe contains a particular ingredient (of which you might be allergic), and whether there are vegan options.

I authored the article. People ask us about our software all the time. We answer their questions. We have a post on our views on privacy, how we collect and use data etc. We give people the option to opt-out of data collection. Our email list is strictly opt-in. It seems that you are fine trusting the people that provide your food, but not your software.