# MatClock — BJJ & Martial Arts Round Timer

> BJJ & Martial Arts Round Timer (iPhone/iPad app by Lucas Moeller.)

- Source: https://appshunter.io/ios/app/matclock/id6755897619 (this page in markdown: same URL + `.md`)
- Developer: [Lucas Moeller](https://appshunter.io/developer/1857074865)
- Category: Sports, Utilities
- Price: $1.99
- Age rating: 4+
- Requires: iOS 17.0 · 3 MB
- Languages: American English
- Released: 2025-12-05
- Data updated: 2026-07-23
- User reviews in markdown: https://appshunter.io/ios/app/matclock/id6755897619/reviews.md

## What is MatClock?

MatClock – The Ultimate Round Timer for BJJ & Training

MatClock is a professional round timer built specifically for Brazilian Jiu-Jitsu, created by active coaches and competitors who needed something better than basic interval timer apps. It’s powerful enough for serious gyms — yet flexible enough for any sport or workout style.

Whether you're running:
BJJ or MMA classes
Boxing & Muay Thai rounds
HIIT, CrossFit, or circuit training
Personal training sessions
Home workouts
MatClock keeps your training organized, visible, and on-pace.

Designed for the Mat
Most timers were built for solo workouts — not live gym environments.
MatClock was engineered for real classes where clarity, volume, and speed matter.

Why MatClock Is Different
Mat-Readable Display
Large, high-contrast countdown timer visible from anywhere in the gym.
Loud, Distinct Audio Cues
Choose bells, buzzers, or horns that cut through crowd noise and signal rounds clearly.
Fully Custom Rounds & Rest
Create any round length or rest interval — perfect for beginners’ classes, advanced training, or competition prep.
One-Tap Presets
Launch common drills and class timers instantly without rebuilding sessions every day.
External Display & Casting Support
Mirror the timer to TVs or projectors so the whole room stays synced.
Built for BJJ — Works for Everything Else
Made for grappling rooms but perfect for MMA, boxing gyms, fitness studios, schools, and home training setups.
Perfect for:
Academy owners
Coaches and instructors
Competitors and hobbyists
Personal trainers
Anyone running interval-based training
Simple. Powerful. No subscriptions.

MatClock is a one-time purchase — no ads, no subscriptions, no upsells.
For less than the cost of a cup of coffee, you get a professional gym timer designed to make every class run smoother.
Train smarter. Run better classes. Focus on the work — MatClock handles the time.


## Version history (last 4 releases)

### 2.0 — 2026-06-30

MatClock 2.0 — completely rebuilt as a native iOS app. Faster, smoother, and made for the mat.

This is the customizable training clock gyms actually need:

• BRAND IT — custom background + 6 color themes to match your gym
• CUSTOMIZE EVERYTHING — your own sounds, voice callouts, midpoint alerts, and round / rest / warning timing
• DRAG & RESIZE — arrange the timer, round counter, and controls exactly how you want, saved per orientation
• ANY MARTIAL ART — comp-accurate presets (IBJJF match times, white through black belt) plus rolling rounds for BJJ, MMA, Muay Thai, boxing & more
• AIRPLAY TO THE BIG SCREEN — cast a clean, branded timer to your gym's TV
• PREMIUM iOS — Live Activities & Dynamic Island, a one-tap Home & Lock Screen widget, and Siri ("Start rounds in MatClock")

Plus rich haptics, a clean black launch, and smooth animations throughout.

Train smarter.

### 1.3 — 2025-12-13

Bug Fixes:
• Fixed an issue where the app could stop when receiving phone calls or Siri requests during AirPlay casting

### 1.2 — 2025-12-09

Version 1.2 New: Improved Audio Mode Options We've refined how timer sounds interact with your music:
Lower Music (new default) - Background music automatically dims when timer sounds play, then returns to normal volume. Perfect for hearing alerts without losing your workout playlist.
Pause Music - Pauses your music during timer sounds, then resumes automatically.
Play Over Music - Timer sounds play at full volume alongside your music.
Settings → Preferences → Audio Mode

### 1.0 — 2025-12-04

No release notes.

## More apps by Lucas Moeller

- [Derpy Cat](https://appshunter.io/ios/app/derpy-cat/id6760553903)
- [Crumb Clicker](https://appshunter.io/ios/app/crumb-clicker/id6761671079)
- [RollCall Grappling](https://appshunter.io/ios/app/rollcall-grappling/id6761694977)
- [Pester — Reminders That Nag](https://appshunter.io/ios/app/pester-reminders-that-nag/id6763533592)

All apps by Lucas Moeller: https://appshunter.io/developer/1857074865

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-07-23.*