Our clients had an adjusted budget and weren't sure if their idea was viable, so they told us "we have x money and we need to develop something that will, on the one hand, validate the project and on the other attract investors".

We thought the project was awesome: it would give everyone the chance to improve their technique in a personalized way. So we got on board with them. As they had a tight budget, we recommended the following path to take: first we would validate the technical specifics with investigation and tests. There were many obstacles to overcome and not any clear or simple solutions. Once we validated the possibility of developing the app, we would create a basic MVP for them to attract investors.

The main obstacle was dealing with the access and activation of the sensors of each phone. The key to the project was finding an affordable way of measuring those metrics, so there wasn't a budget to buy phones or build other devices, we would have to gather the information from the personal players' native phone sensors. But each phone had different operative systems, preferences, access and privacy policies, etc.

In this first stage, we gathered as much information as we could on this topic. There wasn't much online so we had to create tests. We discovered ways to activate these sensors remotely from the coach's phone and keep on measuring when the phone is locked. We also had to create a GPS calibrator to reveal the error range of each phone.