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Behind The Scenes 2 min read

Why We Built Shot Caller: The Muay Thai App We Couldn't Find

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By Shotcaller Sam
August 24, 2026

The idea for Shot Caller Nak Muay was born out of frustration in a damp, poorly-insulated garage gym.

Like many practitioners, I frequently trained solo. Showing up to the gym for classes wasn't always possible, so I'd spend hours on my heavy bag at home. But hitting a bag for rounds on end can quickly devolve into sloppy habits. Without a coach, you start dropping your hands, abandoning defense, and throwing the same three comfortable combinations over and over.

The Shortcomings of Existing Apps

To fix this, I downloaded every "shadow boxing app" and "combo generator" on the market. Most of them were beautifully designed, but the moment I pressed play, it became obvious they were built by—and for—western boxers.

I would hear calls like "One, Two, Three, Four, Right Kick!" It was all high-volume punch output with a token kick slapped onto the end for flavor. I wanted to drill knees. I wanted to throw slicing elbows. I wanted an app to yell "Check!" forcing me to lift my leg before firing back.

Building a Digital Pad-Holder

A good Thai pad session has a specific rhythm. It’s not just a barrage of strikes. A good pad-holder will throw a kick at you to test your guard, ask you to teep them away, and then command a heavy roundhouse.

A live round in Shot Caller Nak Muay: Round 1 of 5, a 2:52 round clock, and the technique Low Kick called on screen above Pause and Stop.
A digital pad-holder: it calls the shot, you throw it.

I built Shot Caller Nak Muay to emulate that rhythm. We threw out the generic boxing templates and mapped out the biomechanics of real Muay Thai.

Our Mission

Shot Caller was built by practitioners, for practitioners. It is designed to be the ultimate companion for the days you can't make it to the mats, ensuring your solo work remains sharp, reactive, and relentlessly authentic.

Train To It Tonight

Shot Caller Nak Muay calls real Muay Thai combinations out loud while you work. Free to start — the round timer, Freestyle and Nak Muay Newb cost nothing.

Prefer to try it in the browser first? Open the web version.

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