I am not vegan, nor do I have a nut allergy, but I am currently looking for a product like that. Unfortunately in the free trial, I wasn't even able to look at one single exercise generated, let alone do other things. I would recommend that you focus on creating real value during the trial (maybe that requires some investment on your end), otherwise it is gonna be hard to convince people that your app makes a real difference compared to the rest out there. For now: Enjoy launch day!