I think you should have an app for everything. I use Google Maps as a navigation aid for me and my friends. At the same time I mark myself spots to which I want to or already was. The now also companies can be evaluated is fantastic, as it can be checked in advance for example, if the restaurant is dog-friendly and how long the opening hours are. About the customer review and pictures can be gained a first impression. I prefer to share fundamentally. Customer friendliness, atmosphere and service. I love this feature because I’ve always switched between Trippadvisor and G-Maps.