When I used this app on my Galaxy S5 it worked like a charm. Now that I have switched to an iPhone6, it doesnt work as a caller id. I can still do searches, but other than that it doesnt tell me who is calling. Actually, it doesnt tell me anything. As for a widget, I havent found a widget like it states in the FAQs under settings.
This app was a 5, now Im not sure if its even worth keeping.
Hiya Caller ID and Block, v2.0