PitchLab 4.7 · 200,000+ downloads

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PitchLab vs. Stalker

A radar gun reads speed and spin. PitchLab also shows how the ball moved.

Spin axis, movement, location, and Stuff+ on every pitch, with video, from an iPhone on a tripod, from $12.50 a month. Here’s what each one measures and costs.

Download for iOS

The short answer How does PitchLab compare to Stalker?

Stalker’s Pro 3s radar gun costs $2,899.99 and measures velocity and spin rate; the Pro 3 ($1,999.99) and Sport 3 Connect ($799.99) measure velocity. None measures movement or location. PitchLab measures all of that, plus spin axis, spin efficiency, and Stuff+, from an iPhone on a tripod, with video of every pitch, starting at $12.50 a month.

Side by side with a Stalker

PitchLab on an iPhone next to a Stalker radar gun, a Pocket Radar, and a TrackMan, all measuring the same pitches.

PitchLab highlights

Jake Fishman

Built by an MLB pitcher

Co-founder Jake Fishman pitched for the Miami Marlins

4.7

Rated

Rated 4.7 stars from more than 2,100 ratings on the App Store

Pro-grade accuracy

Comparable accuracy to expensive tools like TrackMan

200,000+ downloads

Pitchers and coaches from Little League to MLB

Cost Comparing cost

What each one takes to get started: the hardware, the subscriptions, and the devices to run them.

What you need for Stalker

  • Pro 3s radar gunthe Stalker that measures spin$2,899.99
  • A phonefor video and your dataRequired
  • Stalker app Premium4K and slow motion$49.99/yr
  • Tripodfor hands-free useOptional

First year$2,899.99+

What you need for PitchLab

  • Your iPhoneiPhone 12 or newerAlready yours
  • A tripodany that reaches about 5 ftAny will do
  • PitchLabfree to startFrom $12.50/mo

Equipment to buyNone

Side by side PitchLab vs. Stalker, row by row

PitchLab compared with Stalker
Feature PitchLabiPhone app StalkerPro 3s Radar
Price to startstarting at just$12.50/mo$2,899.99Pro 3s, the model with spin
Ongoing costJust your planfrom $12.50 a month, or freeNone requiredapp Premium is $49.99 a year
What you neediPhone and tripodRadar gun, plus a phone for video
Where it goesBehind the pitcheron a tripod, facing home plateIn line with the pitchreadings drop off-angle
SetupUnder 2 minutesline up home plate on screenAim it, or mount it on a tripod
Video of every pitchBuilt in, up to 4Ktrimmed, with stats and ball trackingIn the Stalker phone appspeed and spin on the clip
Velocity
Spin rate
Spin axis and efficiency
Seam orientation
Movement(IVB and horizontal break)
Pitch location
Stuff+

Which is right for you? PitchLab or Stalker?

PitchLab is right for you if…

  • You want to know why a pitch works. Movement, spin axis, and location, not just speed.
  • You track your own bullpens. Set it up, throw, and hear your velocity after each pitch.
  • You want video of every pitch. With the stats on the clip.

Stalker may fit better if…

  • You scout game velocity. From the stands, with no setup.
  • You need long range. Stalker’s Pro radars read up to 500 feet.
  • You want a scoreboard. Stalker sells LED speed signs.

Pricing Choose your plan. Level up your pitching.

Free

Get started

$0

Forever free

Download free
Throws a month
25
Pitcher profiles
1
Video quality
HD
Cloud storage
CSV export
Most popular

Pro

For dedicated pitchers

$24.99

per month, billed monthly

$12.50$24.99

per month, billed annually
$149.99/year

Subscribe to ProSubscribe to Pro
Throws a month
Unlimited
Pitcher profiles
1
Video quality
4K
Cloud storage
1 GB
CSV export
3 profiles

Parent

Built for families

$29.99

per month, billed monthly

$15.00$29.99

per month, billed annually
$179.99/year

Subscribe to ParentSubscribe to Parent
Throws a month
Unlimited
Pitcher profiles
3
Video quality
4K
Cloud storage
1 GB
CSV export

Team

Coaches, teams, and facilities

Custom

Tailored to your needs

Contact sales
Throws a month
Unlimited
Pitcher profiles
Unlimited
Video quality
4K
Cloud storage
100 GB
CSV export

Every plan includes video export, auto-tagging, the ball tracer, and auto-trimmed video.

PitchLab reviews What pitchers say about PitchLab

PitchLab has been downloaded more than 200,000 times and is rated 4.7 out of 5 from more than 2,100 ratings on the App Store. Here’s what a pro pitcher, a training facility, and a parent who coaches wrote.

“An absolute game changer.”

“This app is an absolute game changer. I’ve witnessed countless pitches captured amongst all different types of pitchers and the accuracy is incredible.”

John WestRHP, Arizona Diamondbacks organization

PitchLab App Store review by JohnnyWest34

4.7

Rated

Rated 4.7 stars from more than 2,100 ratings on the App Store

Read all the reviews

“The metrics are impressively accurate.”

“The metrics are impressively accurate — they line up closely with the readings we get from the tracking systems we normally use at our baseball facility.”

Baseball training facility PitchLab App Store review by honestymaters101

“I went into it skeptical.”

“I think the data on ball spin and the ability to watch the pitch with stats is incredible. I went into it skeptical and thinking the subscription was a bit steep. I don’t believe that anymore.”

Parent and coach PitchLab App Store review by Dadcoach88

FAQ PitchLab vs. Stalker questions

Is PitchLab’s velocity as accurate as a Stalker radar gun?

Both measure the velocity of every pitch. A radar gun reads the ball’s speed directly, and Stalker’s manual notes that it reads low when it’s off the line of the pitch, which the Pro 3 models correct for. PitchLab measures velocity from video, and set up as recommended, its results are comparable to TrackMan’s. The video above shows PitchLab next to a Stalker, a Pocket Radar, and a TrackMan on the same pitches.

Does a Stalker radar gun measure spin?

The Pro 3s ($2,899.99) measures spin rate; Stalker’s other handheld radars measure speed. None of them measures spin axis, movement, or location. PitchLab measures all of those, plus Stuff+, from an iPhone.

How much does a Stalker radar gun cost?

On Stalker’s website, the Sport 3 Connect is $799.99, the Pro 3 is $1,999.99, and the Pro 3s with spin is $2,899.99. The app’s Premium tier is $49.99 a year. PitchLab is free to start, and plans start at $12.50 a month.

Where does PitchLab go compared with a radar gun?

A radar gun has to point along the ball’s path and reads low when it’s at an angle. PitchLab’s iPhone sits on a tripod about 2 feet behind the pitcher, at least 5 feet high, facing home plate.

What is the best Stalker radar gun alternative?

For pitchers and coaches who want more than speed and spin, PitchLab is the most complete alternative: velocity, spin, spin axis, movement, location, and Stuff+ on every pitch, with video, from an iPhone.

Your next bullpen,
fully measured

Download PitchLab free on the App Store. Set up your phone and tripod, throw, and get pro-grade numbers before the next pitch.

4.7 from 2,100+ ratings · 200,000+ downloads · In-app subscription from $12.50/mo