Any suggestions for an App to help with low carbing?

[hifi]

basically to track and find out what carbs certain foods have,

I've been using S Health which is a Samsung app (I believe).

It's not specifically geared for Lchf and focuses on calories more than anything but it does give a breakdown of the no. Grams you've eaten in Carbs, Fat and Protein so you can make sure you are keeping to your ratios.