Here’s my take on this.
I can see the argument for wanting concrete information before initiating a difficult conversation. Using a tracker app can provide data points that might either confirm your suspicions or put your mind at ease, replacing feelings with facts. It’s a way of gathering information to understand the situation more clearly before you decide on your next steps.
On the other hand, consider what you’ll do with the information. If you find nothing, the original trust issues may still linger. If you find something, the app doesn’t solve the problem—it only confirms it, and a confrontation will still be necessary. The tool provides data, but it doesn’t navigate the complex emotional landscape of a relationship. It’s just one piece of a much larger puzzle.