Considering a PocketRadar or a Stalker Doppler? See our "battlefield" comparison of five speed radars at

Speed radars that require you to tap the screen are inaccurate. Human reflexes aren't fast enough.

No longer do you have to tap the screen or ask a second person to hold your device.

Velocity is the first video speed radar to work hands-free and calibrate within 0.3mph of a $1,200 Doppler.

Discover if you have natural talent in Baseball, Softball, Tennis, Cricket, Soccer, Hockey or Lacrosse.

"This app is coach has a high tech hand held police grade radar gun...we put this app to the test and it didn't fail" - CurtisR33

"Super simple to setup (be sure to check out the very helpful videos) and very accurate" -Peace

"It took awhile to set up the location of the phone but after that, it worked so well...more affordable than a real radar gun and the same accuracy" -Fierygloberr674

Please note before you purchase!
• Outdoor use only
• Speed radar capability requires iPhone 5S or higher, iPad 3rd Gen or higher, iPad Mini 2nd Gen or higher needed. (Lower end devices can be used to mirror speeds from higher end devices.)
• Selfie mode requires iPhone 6/6+/6S/6S+ or iPad Pro

• Velocity Free measures speeds up to 35mph for free (40 mp if you tell a friend) so you can test the app before unlocking higher speeds via an in app purchase.
• Velocity Ultimate unlocks all the radars for a single low price.

Transform your iPhone or iPad into a revolutionary video camera speed radar!

• Apple's Commercial "Change is in the Air" Game Changing Apps
• "Best App Across Multiple Sports" Finalist Sports Technology Awards
• Finalist TechCrunch Disrupt Startup Battlefield Top 26 from over 700 companies
• Gold Award for Sports & Recreation -- Davey Awards
• Inc. Magazine,, and CNN
• Tabby Awards - Finalist for Best Sports App

Audiences can download the Free version to connect and see your speeds from the stands.

• Simply place your iPhone or iPad about 20 feet away and 20 feet to the side then kick, pitch or serve in-line and in-view of your device.
• The speed of your baseball pitch, soccer kick, cricket bowl, or tennis serve appears on the surface of your device.
• Velocity uses only the camera in your device.
• Use Velocity on a field, rink or court, or simply in a backyard at home.

• Velocity calibrates to within +/- 0.3 mph of the Stalker II Pro ® , a $1,200 speed radar used by over 30 professional teams.
• The accuracy can exceed Doppler radars on balls with vertical trajectories.
• See for calibration details and more

• Five sports available now: Baseball, Softball, Tennis, Cricket and Soccer
• Discover the speed of your pitches, serves, and kicks
• Over 500,000 data points are trackable. Track your improving speeds across coaching sessions, the sports season, or across several years.
• Share speeds with coaches to show what you have achieved.

• Compare your pitch, serve and kick speeds to friends across the season.
• Discover unrealized talent in yourself and others.
• Coaches can track the speeds of an entire team and discover unrecognized improvement.
• Geotag locations to unlock message boards. Find friends in your local neighborhood. No one ever has to practice alone.

• Mirror your speeds on up to seven other devices
• Bring the stadium experience home to your own community.
• Audiences can see the speeds as players practice or play similar to professional games.
• Add Bluetooth speakers, turn on “Voice Announce”, and Velocity will speak the speeds to the team or an audience.

• Optimized for outdoor use only.
• 130 mph max speed on iPhone 6/6+
• 110 mph max speeds: on iPad Air, iPad 4th Gen, iPad 3rd Gen, iPad Mini 2nd Gen, and iPhone 5s+
• 100 mph max speed for iPhone 5 and 5c.

Velocity by Athla - Rediscover the Power of Play

What's New

Version 1.8

• Win a FREE PITCHING MECHANICS evaluation! Athla has partnered with the team at To enter, simply post one of Velocity's Selfie Mode Videos using an iPhone 6 or higher onto Instagram or FaceBook. We choose a new winner every Sunday!
• Fixed an outdoor hockey in-app purchase bug.
• iPhone 6 Selfie Mode is available again! Turn it on in Settings. Please email us if there are any devices out there that still experience lock ups.

Ratings and Reviews

3.2 out of 5

45 Ratings

45 Ratings

Definitely a fun app for the family!


I saw an article on this app written up by Inc. Magazine and just had to try it out. I had a little pitching contest with my nieces and nephews while they were in town for a visit. To my surprise my 16 year old niece was able to pitch almost as fast as me! (her marathon running, gold metal athlete uncle) I definitely recommend downloading this app. It was easy to use and a lot of fun for my family. Who knows, maybe you'll find some hidden talent in yours…!

I can only imagine that users with negative reviews either didn't watch the setup tutorials or are trying to use the app in environments with too much background movement because it works great for me!



App does everything it says. Me and my son used it in our back yard with a fence and trees without a problem. I will say that you need light. We tried it outside the first day around 8:30 pm and didn't get the results. The next day we were back out there around 4 and worked like a charm. We both love it

Developer Response

Thanks for clarifying that the app definitely needs sun to work best!

Impressive speed radar from iPhone


I measured app against tennis speed radar item called netplayz and got similar readings. So $11 for the app or $100+ for radar gun or tool.

Very impressed.

4.5 tennis player. I use it for serve and measuring different strokes and seeing speed variation.

Developer Response

Thanks for the feedback! It is great to hear that people are saving money compared to expensive radars and can help skilled tennis players.


Athla LLC
93.8 MB
Requires iOS 8.0 or later. Compatible with iPhone, iPad, and iPod touch.
Age Rating
Rated 4+
© 2016 Athla LLC
In-App Purchases
  1. Velocity: Baseball speed radar $11.99
  2. Velocity: Tennis speed radar $11.99
  3. Velocity: Soccer speed radar $11.99


  • Family Sharing

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

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