Changes to Petroprix’s fortune wheel and rewards system
The main goal was to improve users’ perception of the Petroprix app, which had +200,000 downloads on the Play Store when I joined the team.
The problem was its low rating, 2.3 out of 5 stars, and most negative reviews came from users complaining that they never won a prize, not because of the app itself.
Industry
Oil company
Company
Petroprix
Service
UX/UI Design
Date
2024
First Approach
The fortune wheel had become Petroprix’s biggest pain point, and everyone on the team was aware of it. The wheel did give out prizes, but the app’s logic didn’t distribute them as expected.
While the development team was working on a fix for this issue, I explored ways to improve the app’s ratings.
Temporary Patch
The fortune wheel could award a variety of prizes. Fuel discounts, free liters of gas, backpacks, umbrellas, and other types of merchandise.
However, as shown in the previous screen, when users didn’t win anything, the app displayed a negative message: “No luck this time”, and granted them a ticket for a monthly tech giveaway held within the app.
I noticed that this screen had potential to improve user perception for several reasons:
Users were always getting something. A ticket for a monthly giveaway where prizes changed every month and were usually high-end tech gadgets (VR headsets, PS5s, drones, etc.).
The message didn’t emphasize what the prize could be. Many users didn’t fully understand how the monthly giveaway worked.
Knowing this, I proposed a new design that:
Delivered a more positive message, emphasizing that users could win a prize later in the month the more they played.
Showed the potential prize, which was usually of higher value than the regular wheel rewards.
Included an option to access the giveaway section directly, so users could track their tickets and see the prizes available.
Impact and Conclusions
Over time, we began to notice an improvement in the app’s ratings. It’s now at 3 out of 5 on the Play Store. However, as we expected, that wasn’t enough. We found that users perceived the change positively, but many also pointed it out in their reviews with comments like “It’s just a visual update, everything’s still the same.”
At that point, we were in the following situation:
The development team was still working on improving the prize distribution logic.
Together with the Marketing and Design teams, we started exploring ways to rethink the entire rewards system.
For the second point, we began researching the possibility of replacing the wheel with a points-based system to improve customer loyalty. However, this remained in an early stage, as I left the company shortly after.






