Pretty Good
I find this app useful for searching foods Im unsure about. It also provides serving sizes you can eat without triggering IBS symptoms. However, I think it needs more foods added to it and maybe a barcode scan would be useful for store bought foods. The cost of the app goes back into research, which I have no problem with. The layout could use an upgrade. I think its more likely people will just use it to search foods rather than read research materials or make shopping lists.
Enleigh about
Monash FODMAP Diet, v1.6.1