One of the best. – Google Keep - Notes and lists Review

I was surprised the way this app works on iPhone. My only need from this app will be Touch ID support. It doesn't necessarily have to ask Touch ID to open the app but it should give us the liberty of protecting confidential information from people who shouldn't have any knowledge of. Just hiding few notes will be great. I hope you consider this. Even Apple did this with their Notes app, so Google Keep team should take a step and make it possible.
Review by Venkat Karthik on Google Keep - Notes and lists.