# Dark Matter Jiu Jitsu vs GutFix

The clearest difference is rating: Dark Matter Jiu Jitsu at 5.0 against GutFix's 4.5. Dark Matter Jiu Jitsu also leads on in-app purchases (none vs 6). GutFix's advantage is update cadence (every 8 days vs every 3 weeks). On price, ratings volume, ads and device support there is nothing between them.

Both are free to download. GutFix sells 6 in-app purchases, starting at $30.00 per month. Dark Matter Jiu Jitsu asks for nothing beyond the download.

Dark Matter Jiu Jitsu holds the better App Store score, 5.0 against 4.5. Both are backed by a comparable volume of ratings — 1 and 2 respectively.

Dark Matter Jiu Jitsu ships an update every 3 weeks, GutFix every 8 days. Both last shipped on October 31, 2026.

## The numbers

| Metric | Dark Matter Jiu Jitsu | GutFix |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/dark-matter-jiu-jitsu/id6761558057/reviews)** | [4.5 (2 ratings)](https://appshunter.io/ios/app/gutfix/id6761826302/reviews) |
| Number of ratings | 1 | **2** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 8 days** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 22 MB | 55 MB |
| Requires iOS | **15.1** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 12+ | 4+ |
| Developer | [Korey Kerber](https://appshunter.io/developer/1890267046) | [GUTFIX LTD](https://appshunter.io/developer/1891674213) |

## What reviewers say

### Dark Matter Jiu Jitsu

[App page](https://appshunter.io/ios/app/dark-matter-jiu-jitsu/id6761558057)

This app helps you track your martial arts training progress. Log classes, build streaks, earn rewards, and access technique videos to improve your skills. It's designed for dedicated practitioners to stay motivated and organized.

**Highlights:** Daily training streak tracking, Class attendance records, Badges and achievements, Technique video library, Goal setting, Points and rewards system

**Features:** macOS Compatibility

**In-app purchases:** none


### GutFix

[App page](https://appshunter.io/ios/app/gutfix/id6761826302)

This AI-powered coach offers personalized gut health plans based on your symptoms and history. It provides general nutrition, lifestyle, and supplement guidance with clear reasoning, adapting to your needs through structured phases and daily tracking.

**Highlights:** Personalized wellness plan, AI gut health chat, Supplement tracker, Daily check-ins and streak tracking, Progress and consistency tracking, Weekly trend view

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| GutFix Pro — Founding | $30.00 | per month |
| GutFix Pro: Early Adopter | $39.00 | per month |
| GutFix Pro: Growth | $49.00 | per month |
| GutFix Pro: Launch | $59.00 | per month |
| GutFix Pro | $69.00 | per month |
| GutFix 6-Month Plan | $300.00 | per 6 months |


## Frequently asked questions

### Is Dark Matter Jiu Jitsu free?

Dark Matter Jiu Jitsu is free to download, with no in-app purchases.

### Is GutFix free?

GutFix is free to download, with in-app purchases available.

### Which has better reviews, Dark Matter Jiu Jitsu or GutFix?

Dark Matter Jiu Jitsu is rated higher. Dark Matter Jiu Jitsu averages 5.0 out of 5 from 1 ratings, while GutFix averages 4.5 from 2 ratings.

### Do Dark Matter Jiu Jitsu or GutFix have ads?

Neither Dark Matter Jiu Jitsu nor GutFix shows ads.

### Which is updated more often, Dark Matter Jiu Jitsu or GutFix?

Dark Matter Jiu Jitsu ships an update every 3 weeks, and GutFix every 8 days. Most recently, Dark Matter Jiu Jitsu was updated on October 31, 2026 and GutFix on October 31, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*