mobile app for protein bars and health nutrition

I'm looking to create a mobile app for protein bars and health nutrition that will be developed for both iOS and Android. This will be a comprehensive app covering nutrition information, all the details about protein bars, and other relevant health information. Nutrition information will be one of the core features of the app, providing nutritional facts and highlights for the bars in an intuitive and easy to understand manner. The other features we've yet to decide on as well as the design preferences for the app. We are open to a minimalist approach, a bold and vibrant style, or a custom design. If you have any ideas for what features should be included, I am all ears!