Kodokan Judo Theory
Kodokan Judo Theory is a technical study companion for judo students on iOS, structured around terminology, technique summaries, and progress tracking.
The App DNA
What makes this app unique?
It replaces the friction of searching through scattered notes or videos by providing a single, organized source for grading-specific technical knowledge.
For Serious judo students preparing for grading or seeking to supplement their technical knowledge between training sessions.
What does it look like?
Key features
Structured review of ukemi, throws, and groundwork with movement counts and common mistakes.
Japanese terminology practice with transliteration, meanings, and audio support.
Status tagging for techniques as learning, confident, or mastered with XP and streak-style cues.
How much does it cost?
The app is currently offered as a free utility with no visible in-app purchases or subscription gates.
Velocity
Maintenance developmentopaqueShow more...
Kodokan Judo Theory has remained in a state of maintenance since its launch 152 days ago. With only a single version released in the observed window, there is no evidence of ongoing development or feature iteration. The app currently lacks any recurring content or update cadence, indicating a static product state.
Who built it?
STEVEN JAMES GOOD
6 apps tracked · Health & Fitness
Squatty Bird
GLPzy: GLP-1 Shot Tracker
ITF Taekwondo Theory
Launch Canvas
Three Routes: Run & WalkUser Sentiment
What do users think recently?
How are ratings & reviews evolving?
Not enough recent reviews to extract reliable themes yet.
Read the full review analysisCompetition
Competitive landscape for Kodokan Judo Theory
How's the Health & Fitness market?
Kodokan Judo Theory occupies a niche segment within the Health & Fitness category, focusing on technical education rather than general fitness tracking. The absence of recent updates since the April 2026 release suggests a static utility model rather than a high-velocity consumer product.
Read the market outlookThe rivals identified
Unlock the deeper market read.
Access the full report for freeThe Analyst's Read
Key takeaways for Kodokan Judo Theory
Where is it heading?
The market for specialized martial arts study tools remains fragmented, with most users relying on static resources. Kodokan Judo Theory is positioned as a stable reference, but the lack of recent updates leaves it vulnerable to any competitor that introduces interactive video-based learning.
- The maintenance-only release cadence indicates the app serves as a static utility rather than a high-growth consumer product.
The SWOT
- Structured progression tagging creates a clear revision loop for grading prep
- Integrating video-based technique recognition would differentiate the app from static glossaries
Next best moves
Audit user retention because the app has been in maintenance mode for 5 months → determine if content expansion is required
The counter-intuitive read
The app's lack of updates is a feature, not a bug…
Read the full takeSince the last report: The app's product state remains unchanged, with no new features or pricing adjustments since the initial release. The analysis shifted from viewing the lack of updates as a liability to characterizing it as a stable, unchanging reference utility.
Bottom line
Kodokan Judo Theory provides a clear, organized study path for judo students, but the lack of recent updates risks user churn. Maintaining the current content base is sufficient if the goal is a static reference, but growth requires a content-refresh cadence.
Unlock 1 critical friction, 1 market threat and the analyst’s take.
Access the full report for freeSources
- [1] App Store
Report last updated