Strokes gained

Eight apps that calculate real strokes gained, compared on price, hardware, categories, platforms and the one thing that changes your numbers most: which benchmark you are measured against.

Five phone-based Arccos alternatives, compared on what they cost, what hardware they need, and how much strokes gained they give you. Prices checked on each vendor site, and the trade-off of tracking without sensors spelled out.

Ten rounds tell you where you stand. A few hundred tell you how your game actually behaves. Here are the golf data lessons that only long-term tracking can teach.

New driver, new wedges, new hybrid. Here is how to track golf equipment changes in golfity so you can see, in strokes gained, whether the new club actually helped.

Your launch monitor says your 7-iron carries 155 with tight dispersion. Your round says you missed the green short four times. Both are telling the truth, and here is how to use each one.

A total is the least interesting thing about most rounds. Here is how to pick the golfity share card that tells the actual story, and what to write underneath it.