Sentr

I co-founded Sentr with two friends as a fun side project — a way to track our amateur team’s stats and turn them into fantasy points. When we couldn’t find an app that did what we needed, we built one ourselves.

With only three of us working in our spare time, we stayed lean and worked closely with users to build only what they really needed. Our MVP gained traction, with around 150 teams logging matches weekly.

In 2024 we decided to take it further, raising £30k to build a Beta with a consistent experience across web, iOS and Android. I designed the MVP and Beta apps and managed the build with our CTO and an external dev team.

We launched in September 2024 with no marketing budget, but thanks to built-in network effects, and a product our users really love, we grew from 150 to 750 monthly active teams and recorded over 35,000 matches so far.