Yes, you can view your past transactions by navigating into the Pay section located at the bottom of your navigation bar. Here you will be presented with 3 tabs, All Stores, My Purchases, and How To Pay.
Choose the My purchases tab, which will highlight all of the active purchases you have. Click on See All so that you can toggle between the Active and Spent transactions you have made in the app since you have had an account.
Here's an article that can help too!