Comparison

Judokai vs Stay Active

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

Stay Active

Features
Read full description

Our mission is to improve everyone life by being active. We believe in wellbeing, physical and mental. We want to help you to feel better, more positive, more active, more you. Join our programs, and free workouts or create your owns. Fully adapted to workout with your own body and mainly without equipments ideal for the current situation where we are limited on equipments.

Screenshots

Judokai4 screens
Stay Active4 screens

Verdict

The call

The clearest difference is in-app purchases: Stay Active at none against Judokai's 10. Stay Active also leads on iOS requirement (12.0 vs 15.0). Judokai's advantage is update cadence (every 3 weeks vs every 2 months). On price, ads and device support 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

Both are free to download. Judokai sells 10 one-off in-app purchases. Stay Active asks for nothing beyond the download.

UpkeepUpdate frequency

Judokai ships an update every 3 weeks, Stay Active every 2 months. Both last shipped on November 7, 2026.

Scorecard3 real differences · 7 level
Judokai versus Stay Active: the parameters behind the verdict, then further details
ParameterJudokaiStay Active
PriceFreeFree
Rating4.7 (191 ratings) — better—
Positive reviews74.4% of reviews—
Number of ratings191 — better—
Update frequencyEvery 3 weeks — betterEvery 2 months
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.012.0 — better
Further details — not scored
Size45 MB31 MB
Age rating4+4+
DeveloperEduardo Costa Producoes Audiovisuais LDAPablo Aldana Caballero

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

Stay Active

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

Stay Active

No in-app purchases

Questions

Is Judokai free?
Judokai is free to download, with in-app purchases available.
Is Stay Active free?
Stay Active is free to download, with no in-app purchases.
Do Judokai or Stay Active have ads?
Neither Judokai nor Stay Active shows ads.
Which is updated more often, Judokai or Stay Active?
Judokai ships an update every 3 weeks, and Stay Active every 2 months. Most recently, Judokai was updated on November 7, 2026 and Stay Active on November 7, 2026.

Other comparisons