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

3.4 out of 5
10 Ratings

10 Ratings

GDdusty ,

Needs iPad app and customization

Great tool or golfers looking to get better, but please allow us to customize which data points to show on the home screen. I would like to see some sort of attack of angle or launch angle data points, and multiple clubs ie (multiple Drivers or Fairway woods) to track and compare witch is the right club. Shaft length is customizable but I would also like to see customizable loft options. All in all a good app; No Bluetooth issues, did get 1 error out of 40 swings using my iPhone 5.

RadMan597 ,

iPhone 8 Plus

App does pair with IPhone 8 Plus

TaylorK14 ,


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.


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


  • Family Sharing

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

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