iPhone Screenshots


*** IMPORTANT: GSA PRO works with MX-G102i device ONLY ***

GSA PRO is the application available on the market that enables golfers to instantly learn about their golf swings with ease. It records your swing motion and sends the information straight to your smart phone by using this GSA PRO app. Amongst the many features like calculating your tempo, Face Angle, Club Head Speed and Attainable Ball Distance, it can actually record your swing locus and compare that to your previous best, or your coach's swing locus, a graphical feedback that can improve your understanding of your swing. You will need a 3BaysGSA PRO device to connect with GSA PRO if you want to capture your swing motion analysis.

Golfers can instantly see on the GSA PRO app -
1. 3D animations compiled from the 10,000 data points captured per swing
2. The following 10 parameters

Back Swing Time
Down Swing Time
Face Angle
Club Head Speed
Impact Force
Attainable Ball Speed (ABS)
Attainable Shot Distance (ASD)
Swing Path

3. Comparisons of your current swings with your best swings.
4. Your historical swing performance

The patented 3BaysGSA PRO is the world's lightest Golf Swing Analyzer using advanced sensor technology to capture your swing data. It provides the fastest feedback on your iOS devices (iPhone 3GS, 4G, 4GS, iPad 1, iPad 2, New iPad). Its plug and play technology makes the 3BaysGSA PRO completely unobtrusive and free from obstruction to your set up or swing, and it does not affect the weight distribution of your golf club.

"Now with the 3BaysGSA we have entered the next generation of learning, which will enable faster improvements than ever before. I really do believe this product can and will help every golfer improve their golf whatever your level." - Robert Eastwood, British PGA Member Class AA

"This is easy to use. Place the analyzer into the end of the grip; hit the ball and your student instantly sees on their phone - club head speed, tempo, impact force, etc. 10,000 data points instantly, it is just amazing and fun. It's simple. It's easy. I just think it's simply the best." - Penny Pulz, 2 time LPGA champion, Top 50 Golf Teacher

What's New

Version 2.22

“Bug fixes” and “compatibility improvement”.

Ratings and Reviews

3.3 out of 5

8 Ratings

8 Ratings

Crashes often on my iPhone X


Please fix. App problems big time.



I had just purchased the GSA Pro and recently got an iPhone 7. After reading these reviews I fully expected the Pro not to work with my new phone. However, that was not the case.

After charging the little unit that slides into the grip and downloading this APP, I followed the instructions for Bluetooth connection and it found it immediately, no problem. I stuck sensor in my 7 iron, went out into my snowy yard and waited for constant blue light. Held club in that position for 2 seconds and swung. Blue light then blinked indicating data transfer to phone and sure enough, there it was. I did 2 more swings with no problem.

Video and data of all swings there. I also signed up on 3 Bay Cloud and my data was synced to their site as well. I'm only 3 swings into this thing but it seems really cool and surely working as advertised. I don't know if swing speed and all is accurate but as other reviews state, the tempo and relative speed increase or decrease should help improve your swing, and it definitely showed if I had an inside or outside path. I gave it 5 stars to help overcome the single rating. It may not have worked in the past but 3 Bays seems to have addressed this. Seems like a super cool little device.

Good and hopefully will get better


I purchased the iPhone version today. With the first one not working and a return to the store to exchange it, I finally got one that worked. I ran some tests and the device itself seems to work well. No failed readings yet. The software however is not up to par just yet.

One major failing is that it does not allow you to flip the compare swings, so as a left hander I cannot compare my swing to the pro swings provided which are both right handed. A major bit of functionality which has been left out. I contacted their support who contacted me within a day and this missing functionality is coming in an update.

Some other functionality which is missing but in competitive products is the ability to pan around a swing giving more than the current 2 views. It also only comes with 2 pro swings and no lefties are included. The backswing and downswing are also difficult to distinguish and the arrows on the lines are not much help. Being able to change the color of the downswing to a different color than the backswing would help significantly.

I give this 5 stars for customer support and 3 stars for the software which I'm sure will improve over time if their great customer support is anything to go by.

I will be testing the device against a Trackman soon but initial thoughts are that it will be in acceptable tolerances so I'd rate it a buy.


Perception Digital Limited
32.5 MB
Requires iOS 8.0 or later. Compatible with iPhone, iPad, and iPod touch.
English, Dutch, French, German, Japanese, Korean, Simplified Chinese, Spanish, Traditional Chinese
Age Rating
Rated 4+
© Perception Digital Limited


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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