Christian Diaz

Christian Diaz


About the Project

Compratek was a design concept for a complementary app that would work with Tiendatek. It would allow the users to manage their vendors and purchases.






To comply with my non-disclosure agreement, I have omitted and obfuscated confidential information in this case study. The information in this case study is my own and does not necessarily reflect the views of Frogtek

The Idea


Tiendatek was a very robust product that thousands of shopkeepers in Mexico, India, Colombia, and Ghana used for managing their shops. Since everything was on the same app, there was a need for some features to exist as standalone apps, so the users could be able to perform some tasks at the same time on two different devices.

The most requested feature to have a spin-off was the ability to register purchases and manage visits from the vendors. So I started to sketch some solutions and took them to the shopkeepers.


Proof of Concept and Features


The feedback from the potential users was positive, so I designed some Pixel Perfect screens and built an interactive prototype.

The features included were:

  • A list of the purchases to be made today
  • A “Promo” section where they can know where to buy cheaper
  • A Ticket Scanner functionality
  • A “Rewards” screen


Feedback from Users


Users gave positive feedback for the interactive prototype, but there was a problem: most of them were owners of the shops, so the ones that had to use this product were going to be their employees. So from this idea, the product pivoted to another called Dueñotek.