# Judokai

> All Kodokan Judo techniques

Canonical page: [https://chrome-stats.com/d/id1493052354](https://chrome-stats.com/d/id1493052354)

## Overview

- **ID:** `id1493052354`
- **Platform:** Apple
- **Type:** Apple app
- **Status:** Available
- **Publisher:** Eduardo Costa Producoes Audiovisuais LDA
- **Category:** Sports
- **Rating:** 4.70 / 5 (191 ratings)
- **Version:** 2.2.16+81
- **Last updated:** 2026-09-11
- **First published:** 2020-02-15
- **Size:** 45 MB
- **Data as of:** 2026-09-24
- **Store listing:** [Apple App Store](https://apps.apple.com/us/app/judokai/id1493052354)
- **Privacy policy:** [http://www.eduardocosta.pt](http://www.eduardocosta.pt/)

## Description

**Judokai** is a comprehensive reference for studying traditional Kodokan Judo techniques and Kata. Learn from detailed demonstrations by César Nicola, 6th Dan, World Veterans Champion, with carefully selected camera angles that reveal movement, positioning, and technical details.

Save technique and Kata videos for offline playback, bookmark favorites, and build a personal Judo study library for use at the dojo, at home, or while traveling. Judokai supports learning, grading preparation, Kata practice, and technique review alongside regular dojo training.

## Rankings

- #105,806 — Overall

## Review summary

Judokai is praised for clear, multi-angle technique videos and an easy-to-use quick reference with well-structured breakdowns. However, users report recurring crashes after updates, device compatibility issues (notably with iPhone SE), and problems with unlocking or accessing paid content. Support contact options are lacking, and there are requests for more content, including translations and additional forms. Overall, strong instructional value tempered by reliability and content breadth concerns.

### Pros

- Clear multi-angle demonstrations of techniques
- Easy to understand and serves as a quick reference
- High-quality video production and visuals
- Structured breakdown of moves (kuzushi, tsukuri, kake)
- Regarded as a go-to app for serious Judokas

### Cons

- Crashes after updates / frequent crashing
- Compatibility issues on certain devices (e.g., iPhone SE)
- Paid content unlocks not functioning / purchases not unlocking content
- Difficult to contact support
- Requests for more content (translations, kata/forms) / breadth of content missing

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Source: [Chrome-Stats](https://chrome-stats.com/d/id1493052354)