MAVTRAX: Free Pitch Calling App for Baseball & Softball
MAVTRAX
Pro-level pitch calling for every diamond

Tap the pitch. Your catcher hears it instantly.

MAVTRAX is the pitch-calling app for baseball & softball. Call the pitch and the location from the dugout, your catcher hears it in a Bluetooth headset. No signs to steal, no missed signals, no slow innings.

Now on iPhone & Android, download free. or open in browser

⚾ Baseball & softball 🎧 Works with $20 headsets 📶 Works offline
The MAVTRAX app pitch-calling screen, pick a pitch, tap the location, and the catcher hears the call instantly in a Bluetooth headset.
The whole setup

Your phone. A cheap Bluetooth headset. That’s the whole thing.

The MAVTRAX app on a phone, pick a pitch and tap the location.
1 · Your phoneTap the pitch + spot in the app
Motorcycle-helmet Bluetooth speaker pod, around $13, velcroed inside the catcher's helmet Fodsports FX-S slim helmet headset Cardo Spirit helmet headset
2 · A $13 helmet headsetVelcroed inside the ear flap, see the picks
3 · Your catcher hears it“Curveball, low and away,” spoken in the helmet

See all headsets from $13 →

Best for 9U & up 9U/ 10U/ 11U/ 12U/ 13U/ 14U/ Travel & Select/ High School/ College/ Fastpitch Softball
Ages & divisions

Best for 9U and up, every division, baseball & softball.

As soon as your pitchers are throwing and your coach is calling pitches, roughly 9U and up, MAVTRAX fits. It's built for 9U, 10U, 11U, 12U, 13U, and 14U travel and select baseball, plus middle school, JV and varsity high school, and college. Fastpitch softball too: 10U, 12U, 14U, 16U, and 18U. Same pro edge the big programs pay thousands for, priced so every team can afford it.

9U10U11U12U13U14U Middle SchoolHigh SchoolCollegeTravel & Select10U to 18U Softball
What MAVTRAX is

Silent, electronic pitch calling, for the 99% of teams that aren’t in the big leagues.

The pros got wireless pitch calling and never looked back. MAVTRAX brings that same edge to youth, travel, high school, and college baseball and softball, using the phone already in your pocket and any Bluetooth headset under the helmet. Call the pitch and spot, and your catcher just hears it. Clean. Instant. Impossible to steal.

How it works

Three taps from the dugout to the catcher’s ear.

No base station. No second phone. No wristband decoder. Pair once and call your game.

1

Pick the pitch

Tap the pitch from your pitcher’s arsenal, fastball, curve, change, or any custom call you’ve set up.

2

Paint the spot

Tap the location on the strike zone. MAVTRAX speaks the full call, “Curveball, low and away”, in a clear voice.

3

The catcher hears it

The call plays instantly in the Bluetooth headset under the helmet. Pitcher sets up, no signs, no delay.

The benefit coaches didn’t expect

It speeds the whole game up.

No mound visits to reset signs. No runner decoding a wristband. No catcher peeking to the dugout between every pitch. The call lands in the catcher’s ear the instant you tap it, so the pitcher gets the ball back and goes, innings move, and the tempo stays yours. It’s the thing coaches keep telling us after their first game: the game just moves faster with MAVTRAX.

<1 sec
call to the catcher’s ear
No
mound visits to fix signs
2 taps
pitch + spot, then play ball
Why MAVTRAX

Pro-style pitch calling, for every team.

The pros call every pitch through an electronic device in the catcher’s helmet, no stolen signs, no crossed signals, no dead tempo. That technology was locked behind big-league budgets. MAVTRAX brings it to youth, travel, and high-school ball.

The same things go wrong every weekend: signs get crossed, a runner on second relays location, a 10-year-old squints at a wristband while the tempo dies, a pitch gets tipped because a hand signal got lazy. There had to be a better way, so we built it.

“If a coach can call the pitch out loud in practice, the catcher should be able to hear it in a game, without the whole infield hearing it too.”

The coach taps the pitch and the spot; the catcher hears the call in a cheap Bluetooth headset; nobody else knows what’s coming. It works for baseball and softball, for 10U travel and varsity, on the budget of a couple buckets of balls. That’s MAVTRAX.

Everything in the app

Built by ballplayers, for game day.

Fast, glove-friendly, and readable in bright sun or under the lights.

🎤

Live Talk

New: press and hold the TALK button and your catcher hears your actual voice through the helmet, live, between pitches, no mound visit.

⚡

Faster games

Calls land instantly, no sign-resetting, no wristband decoding, no mound visits. Pitchers work quicker and innings move.

🎯

Pitch + location calling

Two taps: pick the pitch, paint the spot on a 3×3 zone. The catcher hears the whole call.

🥎

Baseball & softball

Full baseball arsenal plus fastpitch rise, drop, screwball, and drop curve.

➕

Custom pitches & plays

Add your own pitch names and team plays, pickoffs, pitchouts, signals, spoken in your voice of choice.

👥

Multi-team rosters

Coach more than one team? Save each roster and arsenal, switch in a tap.

📊

Pitch counts & stats

Live pitch counts per pitcher, plus by-game tracking of what you’ve thrown, saved to your account.

🗣️

Men’s & women’s voices

Multiple voices, adjustable speed, every catcher hears it the way they like.

🔆

Day & night field modes

High-contrast themes that pop in direct sun and won’t blind you at night.

📶

Works offline

Loads once, then runs with no signal. The outfield’s dead zone won’t stop you.

🎧

Any Bluetooth headset

No proprietary hardware. Pair the headset you already have, or grab our pick.

Why MAVTRAX

The pro-tech edge, without the pro-tech tax.

← Swipe the table to compare →

 Hand signs & wristbandsPro hardware systemsMAVTRAX
Can’t be stolen by runnersNoYesYes
Calls the exact locationSometimesYesYes
No extra hardware to buyYesNoJust a headset
Works for youth & travel budgetsYesNoYes
Baseball & softballYesVariesBoth
Custom pitches, plays & voicesNoLimitedYes
PriceCheap$2,000+ hardwareFree
Accessible by design

Pro pitch-calling tech, for everybody.

For years, wireless pitch calling meant $2,000+ gated hardware only big programs could afford. MAVTRAX is the app that finally makes it accessible to every team. It runs on the phone already in your pocket and pairs with any Bluetooth headset, including the cheap $20 to $40 ones. No base stations, no proprietary boxes, no gatekeeping. One phone, one inexpensive headset, and you’re calling pitches like the pros.

See headsets from $20 →

Pricing

MAVTRAX is free. Completely.

Every voice, every pitcher, every feature, 100% free right now. No subscription, no trial clock, no credit card, no catch. We built it so every team can call pitches like the pros, grab it while it's free.

✓ 100% free ✓ No account required ✓ Every feature included
EVERYTHING · FOR EVERY TEAM
Free
$0 today
no subscription · no trial · no card
  • Everything in MAVTRAX
  • Baseball & softball
  • Multi-team rosters & stats
  • All voices & field modes
  • iPhone, iPad, Android & web
Get it free, App Store & Google Play
or start in your browser →

Works with any Bluetooth headset, even $20 ones. No base stations, no $2,000 hardware. Just the phone in your pocket.

Ambassadors

Love MAVTRAX? Put a team on.

MAVTRAX is free for everybody now, so sharing it is the whole game. Coaches, catcher moms, creators: send your league the app and change how they call pitches this weekend.

Freefor every team
2 minto set up
$0hardware needed
FAQ

Questions, answered.

What is MAVTRAX?

MAVTRAX is a pitch-calling app for baseball and softball. The coach taps the pitch and location on a phone in the dugout, and the catcher hears the call instantly through a Bluetooth headset in the helmet, no hand signs, no wristband cards, no stolen signals.

How does the catcher hear the call?

The coach’s phone pairs to any Bluetooth headset worn under the catcher’s helmet. When the coach taps a pitch and a spot, the catcher hears a clear spoken call like “Curveball, low and away” in well under a second.

Does MAVTRAX work for softball?

Yes. MAVTRAX includes fastpitch pitches, rise ball, drop ball, screwball, and drop curve, alongside the full baseball arsenal, with men’s and women’s voices and adjustable speed.

Is there a delay?

No meaningful delay. Calls are pre-rendered and play instantly, and the app works fully offline once loaded, so a weak signal at the field never slows you down.

What equipment do I need?

Just a phone for the coach (iPhone or Android) and any Bluetooth headset for the catcher. No base stations, no second device, no proprietary hardware. See our headset picks →

Is there an app?

Yes. MAVTRAX is on the App Store and Google Play, and the app is the best experience: instant audio, works offline, one-tap sign-in. iPhone →  Android →  Prefer not to install? It also runs right in your phone's browser.

Does it really speed up the game?

That is the idea. The call reaches the catcher in under a second, so there are no mound visits to reset signs, no wristband decoding, and no catcher glancing to the dugout between pitches. The pitcher gets the ball back and goes, innings move faster and you keep control of the tempo.

Is electronic pitch calling allowed in my league?

Rules vary by league, level, and season, and many high school and travel organizations now permit one-way coach-to-catcher devices. MAVTRAX is strictly one-way, coach to catcher. Always confirm with your governing body before game use.

What ages and levels is it for?

Best for 9U and up, once pitchers are throwing and the coach is calling pitches. MAVTRAX works for 9U, 10U, 11U, 12U, 13U, and 14U travel and select baseball, plus middle school, JV and varsity high school, and college. Fastpitch softball too: 10U, 12U, 14U, 16U, and 18U. If your catcher wears a helmet and your coach calls pitches, MAVTRAX fits.

How much does it cost?

Nothing. MAVTRAX is completely free, every feature, every voice, baseball and softball. No subscription, no trial, no credit card.

Catcher Spotlight

We feature a catcher every day.

Coaches, players & parents: behind the plate is the hardest job on the field, so we shine a light on it. Submit a catcher and we'll feature them on the MAVTRAX feed: their photo, their story, and links straight back to them. Free, real, and great for the recruiting trail.

Get featured →

Call it. Hear it. Trust it.

Give your battery the pro-level edge this weekend. Download free on iPhone, set up your roster in two minutes, and call your first game tonight.

or open it in your browser