plunj.co vs SYSTEM JJ
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
plunj.co
Manage your account, book classes and events, and access on-demand content. Stay connected with announcements, promotions, and shared content. Easily message the team with any questions.
- Account management
- Class and event booking
- On-demand content access
- Direct messaging
- Public feed for announcements
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The PLUNJ app makes it very easy for you to manage your PLUNJ account, book into our classes and events, watch our on-demand content, and keep in touch with us. You can easily message us if you have a question or want to share something with them. You can also follow our public feed to see any announcements we make, promos we run, or content we share.
SYSTEM JJ
This training companion helps you master jiu-jitsu by capturing session intentions and feedback. Record audio and video notes, utilize templates, and get AI coaching within the app.
- Capture training session intentions
- Record audio notes
- Record video notes
- Utilize templates
- AI coach integration
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SYSTEM Jiu-Jitsu notes is your training companion for mastering jiu-jitsu. Capture all of your training session intentions and feedback including audio notes, video notes, templates, and Ai coach right within the application.
Screenshots
Verdict
The clearest difference is update cadence: SYSTEM JJ at every 3 days against plunj.co's every 3 weeks. plunj.co's advantage is ratings volume (309 vs 2). On price, rating, ads and in-app purchases 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
On the App Store both sit at effectively the same score — 5.0 for plunj.co against 5.0 for SYSTEM JJ. That said, the two scores are not equally well evidenced: plunj.co has 309 ratings behind it against 2, so its average is the more settled of the two.
plunj.co ships an update every 3 weeks, SYSTEM JJ every 3 days. The most recent releases landed on October 23, 2026 and October 19, 2026 respectively.
| Parameter | plunj.co | SYSTEM JJ |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (309 ratings) | 5.0 (2 ratings) — better |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 309 — better | 2 |
| Update frequency | Every 3 weeks | Every 3 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 15.1 | 15.1 |
| Further details — not scored | ||
| Size | 55 MB | 194 MB |
| Age rating | 4+ | 4+ |
| Developer | Momence, Inc. | Nicholas Hession-Kugelman |
In-app purchases
plunj.co
No in-app purchases
SYSTEM JJ
No in-app purchases
