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

4.2 out of 5

5 Ratings

5 Ratings

Very helpful for a Little Leaguer...


I was a little leery about purchasing the app, but after a few days use it seems to provide good consistent feedback on pitch velocity for fastballs and change ups. I am using an iPhone 6 (camera) with a G-Boom Bluetooth speaker and have linked an iPad to "see" the speed. Have used the Bushnell but prefer the Altha Velocity app--at least for pitcher-catcher practice. Does not work consistently in low light (indoors) conditions.

Great app! Easy and awesome!


My friend set it up at Golden Gate Park with the Varsity Boys Gateway High School Baseball team. They threw pitches for over half an hour and it picked up virtually every one. Ten kids lined up to test their throws and then kept getting back in line. Most kids threw in the 50s. The pitcher threw as high as 69mph. Even a girl from the stands came down and threw in the 40s. Then one kid on the team, who wasn't even a pitcher, threw a 78 mph ball. The kids gasped and thought it was a mistake - but then he threw them again and again. He had no idea he had such a great arm. The pitcher said, "you should try out! We need more pitchers!" The team was second in the league at the time. It makes you wonder how many other kids out there have hidden talent and don't even realize it! Not sure why the other reviewer had a problem. Just be sure no one moves during the pitch if they are standing in view of the device. At 10x cheaper than the least expensive radar out there - this is a great app!



My previous review still is true for the new version. I just used this app at my son's group tennis lesson. It was a huge hit!! We were able to set it up with no trouble and even used the game link to yell out scores to students. Within five minutes of setting up I had ten teenager in line waiting for their turn! Many of them clocked in at well over 80 mph, one even made it to 101 mph. Wondering if other user didn't have the angle set properly. The app read the speed as fast as we could hit the balls and students all commented that the reading were very similar to readings they've had before.
I wish I had this when I was growing up!! This app is well worth the cost! Every time I use it there is a crowd of people wanting to try it. You just have to make sure you set it up properly and then you will be hooked! After one private lesson with this app my son's personal best got better!!
Thank you Athla!!


Athla LLC
94 MB
Requires iOS 8.0 or later. Compatible with iPhone, iPad, and iPod touch.
Age Rating
Rated 4+
© 2016 Athla LLC


  • Family Sharing

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

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