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Product Build ยท Mobile ยท Security ๐Ÿšง Currently in development

Digitizing the Dojo: a management system for martial arts

Dec 2025 Sharjah, UAE 6 min read
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Martial arts is built on discipline, repetition, and structure. But the backend management of a dojo is often chaotic โ€” paper attendance sheets, missed fee payments, and students constantly asking, "when is my next grading?" can pull a Sensei away from what matters most: teaching.

I built the Karate-Champions App to bridge that gap. The goal was simple: a frictionless mobile experience that carries the administrative burden, so the dojo can focus on training.

Two Sides of the Same Coin

The app is designed around two distinct user flows โ€” the Student and the Sensei.

Student Portal

Transparency & gamification. Knowing where you stand is crucial for motivation.

  • Live schedule โ€” upcoming classes and changes in real time.
  • Promotion tracking โ€” a progress bar shows exactly how many classes remain until the next belt test.

Sensei Dashboard

A command center for running the dojo.

  • One-tap attendance โ€” synced instantly to each student's tracker.
  • Student management โ€” a CRUD interface for profiles and ranks.
  • Financial health โ€” automated fee reminders and payment tracking.
  • Analytics โ€” class sizes, retention, and engagement.

Roadmap: Security & Exclusive Access

The next major update tackles a critical concern: unauthorized sign-ups. Public sign-ups invite data clutter and security risk, so I'm building an invite-only architecture.

The workflow: the Sensei generates a unique, time-sensitive cryptographic link or code, sent directly to the student's device.

The benefit: only paying, verified members reach the dojo's digital ecosystem โ€” keeping the community safe and the database clean.

Tech Stack

React NativeNode.jsFirebase AuthFirestoreCloud Functions

Conclusion

Building Karate-Champions isn't only about writing code โ€” it's about respecting the tradition of the dojo by using technology to remove distractions. A modern tool for an ancient practice.

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