
The beauty of TripIt is that you can set up trips, then view and update on your PC or smartphone. This is an application that syncs with all devices. You can also sync TripIt with your calendar.

Google Trips can only upload your plans automatically from Gmail, so if you use another email provider they won’t appear unless you forward your reservations to your Gmail account.
There are plans for more than 200 major cities, divided into sections including the following: Food and Drink, Where to Go, Things to Do, Saved Places, Day Plans and Getting Around. In particular Getting Around is extremely comprehensive giving you all the transport options wherever you are.
Day Plans is customizable depending on what you want to do, it will also have built up a picture of what Google thinks you might like to do. Choose as you will and recognise that Google knows a great deal about you from what you’ve done and where you’ve been before.
As far as keeping your reservation information in one place is concerned I don’t think anything beats TripIt because you create your own trips. It’s private unless you share it and you can access and update your plans from anywhere and on any device.
There is also TripIt Pro which offers flight alerts, flight refunds and rewards information, but at $49 a year I’m not sure that this is worth it unless you fly a great deal. TripIt itself is free, as is Google Trips.
I can see that Google Trips will be useful for it’s offline ability, transport information and restaurant recommendations, however for Travel planning for the moment TripIt’s the app for me……