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The all-in-one platform for martial arts schools and students.

Built by a Harvard black belt.

Download on the App Store
Get it on Google Play
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The App

Changing the world of martial arts through technology 

Join more than a thousand of happy users

Jitzs is the complete martial arts platform for fans, students, and instructors. Driving digital engagement for everyone!


Martial arts fans gain access to the latest news and events, compiled from the web and social media, to stay connected with the world of combat sports. Martial arts schools can provide their students with a digital curriculum, calendar, videos, and belt tracking capabilities.


Students gain access to their personalized curriculum, calendar, as well as rich videos with exercises recorded by their instructors. Students get the best martial arts videos, from their school, Jitzs library, and compilations from the web.



Jitzs is the complete Jiu-Jitsu and martial arts platform for fans, students, and instructors. From a news aggregation to calendar of tournaments to belt tracking notifications, we have reinvented how each persona in martial arts interact with technology to stay informed and progress in their journey.

Mobile app for fans, students, and instructors

Students and fans gain access to the latest news, events, and tournaments, compiled from the web and social media.

Manage Student Journey

Complete platform for tracking students progress, including belt promotion requirements and notifications.

Scale Your Team

Support for multiple locations and instructors. Grow and scale your team. Available in multiple countries and languages.

Digital Curriculum

Build your digital curriculum to increase student retention and maximize learning. Includes lessons, belts, and videos for techniques.

Skill Monetization

Increase your revenue stream by monetizing your skills and services. Sell content online.

Membership Management

Manage your student membership and receive payments through the app.

The Benefits


Recruit and Retain Students

Drive student engagement with a digital curriculum to. reduce turnover by 15%. We have seen avg. $200 in monthly saving.


Build New Revenue Streams

Scale your reach and increase monetization by selling digital content. Investment can pay for itself. Schools have increased revenue in 10%. 

About Us

Our Story

Our Mission

Our mission is to transform martial arts through technology to empower better lifestyles and enable more sustainable businesses.

Our founder, Eumar Assis, is a Jiu-Jitsu and technology black belt. He built the platform while pursuing his masters degree at Harvard university in 2020. He is a senior leader in technology with 18 years of experience working for major software companies.

Built by a Harvard Black Belt



“The Jitzs app is an important tool to connect the student to the school. We have the functions of calendar creation, attendance control and student promotion. Bringing important information to students and teachers.”

Ricardo Mattos, CEO, Group Fusion

“I love the Jitzs app. It's a great app for martial arts students and fans, helping them stay connected with the world of combat sports!.”

Mauricio, Jitzs App User

“In the past, we used to control manually and with the arrival of the Jitzs app it solved our problems with promotion, grade and frequencies. This frees up time to take on other fronts!.”

Luis F, Fusion Jiu-Jitsu

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