# Judokai — All Kodokan Judo techniques > Comprehensive digital resource for learning and practicing Kodokan Judo techniques. (iPhone/iPad app by Eduardo Costa Producoes Audiovisuais LDA.) - Source: https://appshunter.io/ios/app/judokai/id1493052354 (this page in markdown: same URL + `.md`) - Developer: [Eduardo Costa Producoes Audiovisuais LDA](https://appshunter.io/developer/1492684412) - Category: Sports, Photo & Video - Price: Free with in-app purchases - Rating: 4.70/5 from 191 App Store ratings · 39 written reviews indexed - Age rating: 4+ - Requires: iOS 15.0 · 44 MB - Languages: American English - Released: 2020-02-15 - Data updated: 2026-08-31 - Monetization: free with in-app purchases - User reviews in markdown: https://appshunter.io/ios/app/judokai/id1493052354/reviews.md ## What is Judokai? JUDOKAI — Your Kodokan Judo Reference Study the traditional techniques of Kodokan Judo through detailed, high-quality demonstrations. Explore Kata performed by respected Judo practitioners, study techniques from multiple angles, and keep your entire Judo reference library available wherever you train. EVERY KODOKAN TECHNIQUE Every traditional Kodokan Judo technique is demonstrated by César Nicola, 6th Dan, World Veterans Champion and National Judo Shiai & Kata Champion. Study the complete execution of each technique and replay it whenever you want to examine the movement, positioning and technical details. SEE THE TECHNIQUE FROM MULTIPLE ANGLES Carefully selected camera angles give you different perspectives of each technique, helping you observe the complete movement and focus on the details that matter. EXPLORE JUDO KATA Study dedicated Kata modules performed by respected Judo practitioners. Explore each Kata technique in detail and return to the demonstrations whenever you want to review and refine your understanding. STUDY OFFLINE Every Judo technique and Kata video can be saved for offline playback. Study at the dojo, at home, while traveling, or anywhere without an internet connection. BUILD YOUR PERSONAL REFERENCE • Bookmark techniques for quick access • Save techniques for offline playback • Revisit your favorite techniques whenever you need • Keep your Judo reference with you wherever you train FOR JUDOKAS WHO WANT TO STUDY THE DETAILS Whether you're learning a technique, reviewing what you practiced at the dojo, studying for a grading, working on Kata, or simply looking for a reliable technical reference, JUDOKAI puts traditional Kodokan Judo at your fingertips. JUDOKAI isn't a replacement for the dojo. It's the technical reference you can use alongside your training to watch, review and study Judo techniques in greater detail. Study the technique. Review the details. Strive for perfection. ## Key features - Detailed Kodokan Judo techniques - 240 FPS slow-motion video - Offline video downloads - Learn from a 6th Dan champion - All Judo techniques accessible ## Pricing and in-app purchases Base price: Free. **One-time purchases** | Purchase | Price | Type | | --- | --- | --- | | Koshi-waza | $2.99 | one-time | | Ashi-waza | $6.99 | one-time | | Ma-sutemi-waza | $1.99 | one-time | | Yoko-sutemi-waza | $4.99 | one-time | | Osaekomi-waza | $2.99 | one-time | | Shime-waza | $3.99 | one-time | | Kansetsu-waza | $2.99 | one-time | | Te-waza | $4.99 | one-time | | Judokai | $14.99 | one-time | | Kodokan Goshin Jutsu | $4.99 | one-time | ## Recent user reviews (10 of 39) All indexed reviews: https://appshunter.io/ios/app/judokai/id1493052354/reviews.md ### 5/5 — NEW KATA? When?! *2026-08-06* When u add new kata forms??? How many times we need to wait ? **Developer response:** Большое спасибо за ваш замечательный отзыв и 5 звёзд! 🙏 Нам очень приятно слышать, что вам нравится приложение. Да, мы планируем регулярно добавлять новые Ката, включая Наге-но-Ката, Катаме-но-Ката и Дзю-но-Ката. Мы усердно работаем над тем, чтобы сделать контент максимально качественным и полезным для дзюдоистов всех уровней. Спасибо за поддержку и терпение — впереди ещё много интересного! 🥋 ### 2/5 — Slow *2026-08-05* Currently this app is running extremely slow. For example to view a video it’s taking me 5 min before it starts to play. ### 5/5 — Как часто будут обновления *2026-05-12* Это прекрасное приложение !!! Как часто будут выходить Ката в особенности интересно Наге-но-Ката, Катаме-но-ката и Дзюно-ката ??? Большое спасибо за ответ , заранее **Developer response:** Большое спасибо за ваш замечательный отзыв и 5 звёзд! 🙏 Нам очень приятно слышать, что вам нравится приложение. Да, мы планируем регулярно добавлять новые Ката, включая Наге-но-Ката, Катаме-но-Ката и Дзю-но-Ката. Мы усердно работаем над тем, чтобы сделать контент максимально качественным и полезным для дзюдоистов всех уровней. Спасибо за поддержку и терпение — впереди ещё много интересного! 🥋 ### 1/5 — 骗钱软件 *2026-03-30* 去年刚花58买的，现在就全部免费了。并且内部视频清晰度低，有的视频还卡顿，看不完整。垃圾app，把消费者当傻子玩。 **Developer response:** 关于您提到的体验问题，我们很抱歉这并不是我们希望提供的使用效果。 应用内视频支持 480p 和 1080p，并且也可以下载离线观看以提升流畅度。 另外，应用现在对您已变为免费使用（因为您之前已经完成过购买）。 为了帮助我们更准确定位问题，可以请您说明一下具体是哪些视频出现卡顿或无法完整播放吗？ 也欢迎通过邮箱联系技术支持：judokai2020@gmail.com 感谢您的反馈。 ### 4/5 — Just one problem on an excellent app *2024-05-29* The app is super good and I use it every week to remember the techniques and solve doubts about details. However the Te waza’s Obi Tori Gaeshi is wrong; maybe the footage mistakenly placed. The left hand should grab the uke’s right leg’s pants and the throw is sideways to the right, tori ending on top. ### 5/5 — Great Reference *2023-11-07* A recent update crashed the app, but the developer released a fix about a month later. I refer to the app frequently. Clear multi-angle demonstrations of most judo techniques. ### 4/5 — Great app just needs; Kata to make it perfect *2023-10-25, version 2.0.27+39* Great app with fantastic production for each video. The inclusion of Kata would make it perfect. ### 5/5 — Super indico *2023-10-23* Super indico o app, muito técnico e o suporto de apoio foi excelente ### 3/5 — Lässt sich seit dem letzten Update nicht mehr starten *2023-10-22* Seit dem letzten Update im Oktober lässt sich die App nicht mehr starten, bzw stürzt sofort ab. ### 5/5 — Very well done, detailed, excellent for preparation of Kyu exams *2023-10-21* Update 2023-10: ** App does not start anymore, please fix!** Great app, learned a lot. Excellent videos. Search function is very helpful too, you can e.g. quickly look up the differences between Yoko-wakare, Yoko-otoshi and Uki-Waza or the different techniques using ‘Tsuri-Komi’. An add-on showing combinations or even more more Ne-Waza would be greatly appreciated. Excellent work. ## Frequently asked questions about Judokai ### What is Judokai? Judokai is a mobile application designed to help judokas develop the technical component of Judo. It provides detailed video demonstrations of all Kodokan Judo techniques, allowing users to study movements in high detail. ### What are the key features of Judokai? Key features include access to all Kodokan Judo techniques, 240 frames per second slow-motion video for detailed analysis, offline viewing of downloaded videos, and instruction from a 6th Dan Judo champion, Tori César Nicola. ### Is Judokai free to use? The application is free to download and use, but it offers in-app purchases. This means certain content or features may require an additional purchase to access. ### Can I use Judokai without an internet connection? Yes, Judokai supports offline viewing. You can download videos to your device, allowing you to practice and study Judo techniques anytime and anywhere, even without a network connection. ### Who is the instructor in Judokai? The techniques in Judokai are demonstrated by Tori César Nicola, who holds a 6th Dan in Judo and is a national Judo Shiai and Kata Champion. His expertise ensures high-quality instruction. ## Version history (last 5 releases) ### 2.2.15+80 — 2026-08-18 • Improved in-app store experience with smoother purchase and restore flows. • Added support for individual Kata modules (including Kodokan Goshin-jutsu). • Visual updates to store dialogs, buttons, and status indicators. • Enhanced Coming Soon section for upcoming katas with smoother scrolling and detailed cards. • Performance improvements and bug fixes. • Fixed an issue where reordering favorites lists and techniques wasn't working correctly ### 2.2.11+76 — 2026-04-11 Video enhancements for a smoother playback experience. Various visual fixes and minor improvements. ### 2.2.7+72 — 2026-03-29 New Kata module: Explore the official Kodokan Goshin Jutsu. Enhanced video playback and stability for a smoother learning experience. UI/UX refinements and visual design optimizations. ### 2.1.6+54 — 2024-12-31 What's New: • Judokai Lite: Free version with judo quiz and offline videos • Auto-language selection during installation • Faster app performance • Improved in-app purchases ### 2.0.27+39 — 2023-10-23 Addressed minor code problems concerning store internals and cache-related events. ## Apps similar to Judokai | App | Rating | Price | Category | | --- | --- | --- | --- | | [Foto Benfica](https://appshunter.io/ios/app/foto-benfica/id954377080) | — | Free | Sports | | [SPYPOINT](https://appshunter.io/ios/app/spypoint/id1074343060) | 4.3 (41,401) | Free | Sports | | [All Sport DB Live](https://appshunter.io/ios/app/all-sport-db-live/id1541527180) | — | $0.99 | Sports | | [Sport.Video](https://appshunter.io/ios/app/sportvideo/id1241795100) | — | Free | Sports | | [YJC Camera](https://appshunter.io/ios/app/yjc-camera/id1493255420) | 5.0 (4) | Free | Sports | | [PoolSide Live](https://appshunter.io/ios/app/poolside-live/id1190403440) | — | Free | Sports | ## More apps by Eduardo Costa Producoes Audiovisuais LDA - [Madeira Military Museum](https://appshunter.io/ios/app/madeira-military-museum/id1536589260) - [Judokai lite](https://appshunter.io/ios/app/judokai-lite/id1623786598) - [Fusion Flow: Sports Merge](https://appshunter.io/ios/app/fusion-flow-sports-merge/id6503224990) All apps by Eduardo Costa Producoes Audiovisuais LDA: https://appshunter.io/developer/1492684412 ## Related topics [judo](https://appshunter.io/ios/topics/judo) · [judokai](https://appshunter.io/ios/topics/judokai) · [judotv](https://appshunter.io/ios/topics/judotv) · [judopedia](https://appshunter.io/ios/topics/judopedia) · [judokai lite](https://appshunter.io/ios/topics/judokai-lite) · [ibudokan judo](https://appshunter.io/ios/topics/ibudokan-judo) · [judo training](https://appshunter.io/ios/topics/judo-training) --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-31.*