Comparison

Judokai vs JudoTimer Plus

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Judokai

Master Kodokan Judo techniques with detailed, slow-motion video demonstrations. Access all techniques anytime, anywhere, and download them for offline viewing. Learn from a 6th Dan Judo champion.

Highlights
  • Detailed Kodokan Judo techniques
  • 240 FPS slow-motion video
  • Offline video downloads
  • Learn from a 6th Dan champion
  • All Judo techniques accessible
Features
Read full description

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.

About

JudoTimer Plus

Features
Read full description

A simple, easy-to-use, and feature-rich judo timer. Two different functions are available depending on the device orientation. (Camera features are also included.) Portrait: Training Program Timer & Delayed Camera for Form Analysis Landscape: Simple Match Timer -------------------------------------------------------------------------- Introduction and User Guide for iOS Version 1: https://youtu.be/_FoFjpiDiJU Updates through iOS Version 2.1.1: https://youtu.be/FuMekmNhsps Updates through iOS Version 3.1: https://youtu.be/tpvMUbI2osM Updates through iOS Version 5.3: https://youtu.be/5THtWacEMrY

Screenshots

Judokai4 screens
JudoTimer Plus3 screens

Verdict

The call

The clearest difference is price: Judokai at Free against JudoTimer Plus's $1.99. JudoTimer Plus's advantage is in-app purchases (none vs 10). On update cadence, ads, device support and iOS requirement there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Judokai is free to download; JudoTimer Plus costs $1.99 up front. Judokai sells 10 one-off in-app purchases. JudoTimer Plus asks for nothing beyond the download.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 3 weeks. The most recent releases landed on October 29, 2026 and October 30, 2026 respectively.

Scorecard2 real differences · 8 level
Judokai versus JudoTimer Plus: the parameters behind the verdict, then further details
ParameterJudokaiJudoTimer Plus
PriceFree — better$1.99
Rating4.7 (191 ratings) — better—
Positive reviews74.4% of reviews—
Number of ratings191 — better—
Update frequencyEvery 3 weeksEvery 3 weeks
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.014 — better
Further details — not scored
Size45 MB2 MB
Age rating4+4+
DeveloperEduardo Costa Producoes Audiovisuais LDAMasanobu Takahashi

Bugs and requests

Judokai

Reported bugs

6 issues
  • App crashes after recent updates
  • App does not open after updates
  • Videos do not load
  • App crashes on older iPhones/OS
  • Paid content not unlocking
Show 1 more
  • Seoi-nage and Ippon seoi nage use the same video

Requested features

8 requests
  • Add new kata forms
  • Include Japanese term translations
  • Add download all option for videos
  • Synchronize favorites across devices
  • Add notes and categorization for favorites
Show 3 more
  • Add combinations or more Ne-Waza
  • Add pins, chokes, and locks
  • Allow creation of self-named categories for sorting

JudoTimer Plus

Not enough reviews yet to summarise bugs or requests.

In-app purchases

10 purchases

Judokai

One-time10
  • Ma-sutemi-waza$1.99
  • Koshi-waza$2.99
  • Osaekomi-waza$2.99
Show 7 more
  • Kansetsu-waza$2.99
  • Shime-waza$3.99
  • Yoko-sutemi-waza$4.99
  • Te-waza$4.99
  • Kodokan Goshin Jutsu$4.99
  • Ashi-waza$6.99
  • Judokai$14.99
None

JudoTimer Plus

No in-app purchases

Questions

Is Judokai free?
Judokai is free to download, with in-app purchases available.
Is JudoTimer Plus free?
JudoTimer Plus costs $1.99, with no in-app purchases.
Do Judokai or JudoTimer Plus have ads?
Neither Judokai nor JudoTimer Plus shows ads.
Which is updated more often, Judokai or JudoTimer Plus?
Judokai ships an update every 3 weeks, and JudoTimer Plus every 3 weeks. Most recently, Judokai was updated on October 29, 2026 and JudoTimer Plus on October 30, 2026.

Other comparisons