Christian Diaz

Christian Diaz


About the Project

Tiendatek is the main product of Frogtek, a startup located in Mexico City. They want to bring technology to small shops and their shopkeepers in populated zones, so they can increase their sales






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 Context

Tiendatek is a custom app for Android tablets, developed by Frogtek. Its a POS and Fiancial mangement system focused on convenience stores inventory, and is used on different countries like Mexico, Colombia, India and Ghana.

The business model of the product was not to only offer the app, but also the hardware which included an android tablet, a barcode scanner, and a smal printer for receipts.


The Challenge

Tiendatek aims to bring technology to people that are not used to it, so they can have a better management of their shops and of course, get a better sales profit. It was an interesting challenge to tackle because a high percent of the users were people between 40 to 65 years old, and they had small to none experience using new technology form factors like tablets or smartphones.

This also created several UX challenges: the product had the same experience since the first android version, it has a lot of features and it should be easy enough for anyone to use it without even knowing how to use a tablet.

User Research

With the help of the Product Team, I did a User Research of the current product. We invited some shopkeepers so they let us know what they think about Tiendatek, what can be improved and how it would impact their day by day at work.

The feedback was that since it’s a tool that they use all day long, it could be more visually appealing. They also requested to have important information available without having to go deeper into the navigation, like when the next vendors are coming or how much they have sold at that moment.

We had many of this sessions at the same time that we were working on the redesign, so it was a lean process that we followed.


The proposed Redesign

I focused on bringing a new experience to the shopkeepers without making a giant leap from what they already know. I switched to a light theme for better readability, along bigger texts and clearer tappable actions. I also implemented a color code across the interface, so it can reinforce the context of the user.

But the most important thing, and the feature that users liked the most, was the new Home screen. I divided the Home into tabs, so the user can have access to relevant information depending on the action to perform: Sell, receive vendors and buy, See data and information about the shop, and something that was a requirement from the Product Owner: a “Coach” that would have some gamification features.


User Testing and Feedback


I had constant feedback from the users, so this was a Lean process. For the final user testing, I built an interactive prototype using Marvel App and I installed in on a testing tablet. Then I had around 8 user testing sessions.

The feedback from the users was great because they said that this new approach was really easy to understand. They found a lot of value on the new home screen because now they would be able to get the information that they needed by just swiping the screen.

The users were really excited about using this new version of Tiendatek. Unfortunately, the redesign had to be shelved for other reasons out of the Product Team control.