Nice addition this tool would be to manually input seconds to check formula.

Excellent inexpensive app for measuring swing weight of tennis racquets.

When used properly I think it is pretty accurate but the app sometimes gives fluctuating swingweight numbers at times despite same numbers inputed

It’s very hard to use and the error messages are not clear enough.

After constructing a stand to suspend racquets, I started using this application extensively. I then imported a swingweight machine from the UK. The readings where always close, but when averaged they where exactly the same! This application is outstanding!

This tool is much better than the what you have to go through on TW. I takes out the human error of counting precise seconds. ...very accurate.

Just started to use the app. Think it may serve the purpose. Wish there was more detailed info regarding golf club measurements. May just take time on my part-4 stars. 2nd post-spent a few hours with the Swingtool. Very repeatable and consistent. Contacted developer with questions regarding use and points of measure-received response next morning 5 stars.

This tool sets a reference point. When things change, measure again and compare to benchmark. Start here to eliminate variables that could be the cause.

This app is spot on and takes the guesswork out of matching any kind of racquets, golf clubs or bats. I’ve compared the results to manually measuring my racquets, and it always nails my 6 attempt average, so it’s definitely accurate. when I first downloaded the app, it kept crashing, so I emailed the developer, and he got back to me within minutes. Turns out the issue was on my end. After I re-installed it works perfectly!

Very cool app. Allowed me to bring my two tennis racquets into exact alignment. I'm stickler for accuracy and this app is awesome. Tennis racquets don't come from the factory with the same weight or swing weight. This app helped me fix that.