Martial Arts electronic scoring system

Sports

Services:

Mobile app development

Software modernization

Third-party integration

IoT

The team

4

iOS developer

Android developer

UI/UX designer

Project manager

Integrations

Firebase

In-app purchase

Bluetooth low energy / Core Bluetooth

Technologies

Swift (iOS)

Kotlin (Android)

Timeline:
Phase 1 — Fall 2021 – April 2022 (iOS app launched)
Phase 2 — 2022–2025 (ongoing maintenance & updates)
Phase 3 — August 2025 – present (Android app, new device support, rebrand)

The client

2020 Armor is a sports technology company creating products that inspire people to fall in love with martial arts and reach their full potential. The company develops hardware and software for martial arts to transform the industry into a mainstream professional sport like soccer.

2020 Armor's flagship product tracks and displays impacts on a vest via a mobile app using scoring from popular video games like Street Fighter. Customers include some of the largest martial arts clubs in the world, Olympians, the casual at-home practitioner, and the newly launched professional martial arts league rooted in the metaverse, the United Battle League.

Before turning to COAX, the client had a taekwondo scoring app written in Unity. However, it couldn’t completely meet modern requirements and appeared to be difficult to maintain. 2020 Armor turned to COAX to remake their taekwondo scoring system and application and add new features. The main challenges our team faced when working on the project were:

  • Represent and save an animated game video showing live data.

    Unfortunately, it is not possible to systematically record video using a camera with live animations. Although the video preview shows the layer where the animation was placed, the video is saved without additional layers. Since we are talking about live animations (how they are displayed depends on the data received from the vest), it is impossible to program these animations in advance.

    To acquire the animated video as quickly as possible, we opened the camera in View - this live picture from the camera is the background. Then, other UI elements were added on top, which were then animated depending on the type of game and the data received from the vest. In parallel with this, screen recording was deployed. Screen recording allows for saving videos with various live animations. The operation of saving such a video only takes a few seconds. Showing and saving an animated video of a game also allows for displaying live data.
  • The game starts on a vest from the iOS app and collects the game's data from the vest during a game.

    To do this, we used Bluetooth Low Energy technology with the built-in Core Bluetooth framework. According to the documentation provided, we could recognize each CB Characteristic and correctly form the data sent to the IoT. Accordingly, the vest also sent data that had to be interpreted and used depending on the game mode.

COAX developed a martial arts app that controls the Century 2020 vest and, later, the newly launched wearable device, in order to:

This data drives a detailed analytics profile where users, coaches, parents, and friends can track progress across key indicators: reaction, stamina, power, pressure, blocking, combos, strikes, counters, and more. Session videos allow athletes to review technique on every hit, and a weekly leaderboard ranked by total hits keeps competition alive between training sessions.

Building on this foundation, COAX expanded the platform in two major directions. A full native Android app was built from scratch, bringing the experience to a second platform for the first time, with corrected joule-based impact calculations and accurate strike counts applied from day one. When the client introduced a new wearable device, we designed the complete flow around it: device selection, BLE pairing, onboarding, per-device game filtering, and settings management. Users can now train on iOS or Android with either device. The rebrand to Century 2020 was reflected across both apps and their store listings to close out the release.

Wireframes

Before sketching out the new design we developed wireframes, which facilitated us in adding new features, defining the scope of design work, building user flows, and ensuring that all the screens were considered.

Style Guide

Every project that wants to be up-to-date goes through a transformation, both in adding new functionality and updating the application according to new standards and technologies. Such changes often require expanding the team and making numerous alterations in both design and development.

One way to alleviate this process is to develop a Style Guide that contains the colour scheme, typography, spacing, icons, imagery, and all the visual language used on your site. It helps stakeholders and the entire team adhere to a single vision and style of the project, that increases development efficiency and productivity.

Key features

/ Features

Connect to vest via BLE

Smartphone screen showing an app connecting via Bluetooth to a smart vest device.

Start games on the vest from the iOS app

Smartphone image with Apple and Android logos on each side above the word Century and 20|20 tech badge.

Collection of the game’s data

Mobile screen showing device selection with four vest options and checkmarks on two selected vests.

Display user progress via analytics

Mobile screen showing reaction game stats: level 7, 60s round, 640ms average reaction time, 91% success rate.

Recording video of game sessions

Mobile app screen showing user's strike stats and three circular strike goals with progress values.

In-App Purchases

Mobile game menu showing Reflex, Heartbeat, and Hit meter games with single-player option selected.

Live feed and leaderboard list

Mobile app screen showing coach view with user michael and reaction metrics like best and average intervals.

The results

The development of the martial arts app began in the fall of 2021. The app was released in mid-April 2022. Development is still ongoing, and we are adding updates every two weeks.As a result of our work on the project, 2020 Armor received a modern martial arts electronic scoring system and a stable and user-friendly app.

We are happy that our cooperation and work on the project has helped the client satisfy modern-day standards and other user requirements.

COAX Software is a leading web development service provider, helping you build customized, enterprise-grade, and result-driven web solutions for your business.2020 Armor mobile app development case study shows that COAX helps companies implement innovative solutions that meet their business needs and address growth challenges.

Client feedback


Their highly responsive team had the technical know-how to seamlessly incorporate non-standard features.

Despite facing tight crucial deadlines, they worked tirelessly around the clock to deliver the project on time, even accommodating additional feature requests. We are immensely thankful for their hard work, which resulted in exceptional outcomes.

Ali Ghafour

CEO, 2020 Armor

Why partner with COAX?

  • Flexibility & adaptability

    Our team understands the importance of flexibility in the construction industry, which is why we work around your schedule to provide services at a time that's convenient for you.

  • Skilled and dedicated team

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  • Ongoing support

    We're committed to providing excellent support throughout the entire project lifecycle. That's why we don't just focus on our technical specialists but also pay close attention to the professional skills of our project managers to ensure seamless cooperation.

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  • Growth-focused approach

    In the construction industry, businesses need to constantly adapt and grow. That's why we don't just develop custom software solutions, we implement cutting-edge tools that help your business and technology scale for long-term success.

  • Agile methodology

    At COAX Software, we value transparency and efficiency. That's why we follow a truly agile approach when providing IT services for construction companies. We aim to remain flexible and responsive to your needs at all times to ensure project success.

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