Better off going to website directly
Theres only one feature I have found to differentiate the app from the website. And that feature is the ability to scan codes. However, you still have to enter codes on diaper wipes manually.
Otherwise, the app is just a proxy for the website - most of the menu options (Grow On, Rewards) opens a new Internet browser window to Pampers.com. And you have to log into the website in some instances, creating a secondary step. In addition, it is cumbersome to get back to the main screen of the app - instead of a navigation button at the bottom, I go to Settings then select Main Menu.
To get around the scanning feature offered in the app, I use Siri to dictate the code for me.
Better to just create a bookmark on your Home Screen to Pampers.com and make sure to select option "Keep me signed in".
RachaelHime about
Pampers Rewards, v3.2