What They Have in Common
Both are camera-based photometric launch monitors at the $699 price point. Both require special balls for spin data. Neither has a built-in screen — you're connecting to a phone, tablet, or PC for everything. Both support GSPro. Same starting price, different total costs.
Where They Differ
What you're actually paying over time
This is where the comparison turns.
The MLM2PRO's $699 gets you hardware and a 45-day free trial of Premium. After that, it's $199.99/year to keep courses and full data access. Over three years: $1,299. Over five years: $1,699. The lifetime license at $599.99 changes the math considerably — hardware plus lifetime runs $1,299 total, and you're done paying. If you're planning to keep it, buying the lifetime license upfront is probably worth modeling before you assume the annual route.
The Square Golf Original at $699 is the full price. No subscription. Ten courses included. GSPro compatible. Three-year total cost: $699. Five-year total cost: $699.
If you're comparison shopping on the first page of checkout, the prices look the same. They're not.
Indoor vs outdoor use
The Square Golf Original is an indoor-only device. It sits beside the ball, uses a high-speed camera and machine vision, and it simply doesn't work outside — sunlight and ambient conditions aren't compatible with how the system sees the ball.
The MLM2PRO uses dual cameras plus Doppler radar, which gives it all-weather outdoor capability. If you want to bring your launch monitor to the driving range on a Saturday, the Rapsodo is the one that goes. The Square Golf stays home.
That's a meaningful split depending on how you practice. If your whole setup is a dedicated indoor sim room, the Square Golf's outdoor limitation won't cost you anything. If you want range data in addition to sim sessions, that's a different story.
Special balls and what you actually need them for
Both products require special balls for spin data — this isn't unique to either one, but it's worth spelling out. Rapsodo uses RPT balls (roughly $70/dozen). Square Golf uses their dotted balls (similar pricing tier). Budget for a couple dozen balls up front and some annual replacement depending on how hard you practice.
Neither requires club face stickers, which is a minor convenience point but worth noting.
Data tracked
The MLM2PRO measures club speed, club path, and angle of attack in addition to the full ball-flight suite. It also has a shot tracer and swing video capture via the app, which some golfers find useful for session review.
The Square Golf tracks swing path, face angle, dynamic loft, and angle of attack on the club side. Solid coverage. It doesn't appear to include swing video.
Neither product's accuracy data was available for this comparison — both fields are currently unverified. I'd treat marketing claims from both brands with appropriate skepticism until independent testing catches up with newer photometric units in this price range.
Sim software and courses
MLM2PRO connects to E6 Connect and GSPro, but course access is behind the Premium subscription. Without it, you're limited to what's available in the free tier.
Square Golf includes 10 courses outright and supports GSPro without an additional subscription. If you're already paying for a GSPro membership separately, both units work — but Square Golf doesn't add another recurring line to your budget.
Who Should Buy Which
Rapsodo MLM2PRO
- You want a launch monitor you can use both indoors and at the driving range — the outdoor radar capability is the MLM2PRO's real differentiator here.
- You're comfortable paying the $599.99 lifetime license upfront and want the E6 Connect ecosystem plus swing video.
- You're buying it as a travel or range tool that occasionally connects to a simulator, not as a permanent sim room installation.
- You practice outdoors during the season and want winter sim sessions too — this is the unit that does both.
Square Golf Original
- You're building a dedicated indoor sim room and plan to never move the launch monitor outside.
- You want the lowest possible total cost of ownership — $699, full stop, no renewals.
- GSPro is your sim platform and you don't want to pay again for course access you're already getting through a GSPro subscription.
- The 8-hour removable battery and 2-year warranty matter to you — the Square Golf is explicit about both, the MLM2PRO's specs on these aren't publicly confirmed.
The Bottom Line
Same sticker price, genuinely different products. If you're going to use it outdoors even occasionally, the Square Golf won't work and the MLM2PRO will. If you're building a permanent indoor setup and want zero subscription costs, the Square Golf is the cleaner buy — three years of use costs $600 less than the Rapsodo's annual plan, or the same as Rapsodo's lifetime license with no ongoing strings attached.
The outdoor capability is the real question. Answer that first, and the rest of the comparison falls into place.
Get the Square Golf Original.
See Also