Apps or Websites

I posted not long ago about being newly diagnosed and everything. With that I've found it sort of hard finding my footing in the new diet of no dairy and no eggs. I was wondering if you guys used any apps or websites for not just recipes but that will easily show you what is in something and whether you should or shouldn't eat it according to your restrictions. I found it especially hard for restaurants. It would be great if it was free or didn't cost too much either since I dont really have a lot of money. Thank you for any help!