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BlackBelt Design

A comprehensive BJJ training app built with SwiftUI. 36,000+ lines of code covering technique library, training logs, and belt progression.

2025-06

A training companion for Brazilian Jiu-Jitsu practitioners, built entirely in SwiftUI.

Features

  • Technique library — searchable database of techniques organized by position and belt level
  • Training log — track sessions, sparring rounds, and what you drilled
  • Belt progression — visual progress tracker with milestone tracking
  • Session timer — configurable round timer for drilling and sparring

Technical details

36,815 lines of SwiftUI. Custom animations, Core Data persistence, and a design system built from scratch. My first production iOS app — the project that proved a marketer could build real software.

Stack

Swift · SwiftUI · Core Data · Xcode