Comparison

Dark Matter Jiu Jitsu vs GutFix

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

Head to head
About

Dark Matter Jiu Jitsu

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
Read full description

Dark Matter Jiu-Jitsu is your personal Jiu-Jitsu training companion. Track your classes, build streaks, earn badges, stay up to date at the academy, and watch technique videos. Features: Daily training streak tracking - stay motivated! Class attendance records - see your progress Badges & achievements - get rewarded Technique video library - improve your skills Goal setting - set targets and achieve them Points & rewards system - unlock achievements Age-verified and COPPA compliant for users 13+. Join Dark Matter Jiu-Jitsu and take your training to the next level!

About

GutFix

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
Read full description

GutFix is an AI-powered gut health coach. Answer a 5-minute intake of your symptoms, history, and what you've already tried and get a personalized wellness plan with general nutrition, lifestyle, and supplement guidance, grounded in gut-health education. GutFix Pro is a paid subscription. The personalized plan, AI chat, and tracking features below require an active GutFix Pro subscription. WHAT GUTFIX PRO INCLUDES • A personalized plan across 3 phases: Foundation, Rebalance, Maintenance • AI chat that remembers your history — ask about symptoms, supplements, and food triggers • Supplement tracker with general timing guidance (morning, afternoon, evening) • Daily check-ins that build a streak and track how you feel over time • Progress and consistency tracking — small daily wins, big long-term results • Weekly trend view so you can see what's helping WHY IT'S DIFFERENT Most gut-health apps give generic advice or push a single product. GutFix is different: • Founder-built and grounded in real gut-health research, not generic advice • Guidance adapts to YOUR reported symptoms, history, and what you've already tried • Clear reasoning — for every supplement suggestion, you see WHY it's included • No information overload — each phase shows exactly what to focus on next WHO IT'S FOR People navigating everyday digestive discomfort — bloating, gas, irregular digestion, and the "I've tried everything" feeling of failed supplement stacks — who want structured, educational support. If a self-reported answer is something a clinician should review, GutFix tells you to speak with your doctor first. SUBSCRIPTION GutFix Pro is billed monthly or annually and unlocks the full personalized plan, AI chat, supplement tracker, and ongoing adjustments. Subscriptions renew automatically unless cancelled at least 24 hours before the end of the period. Manage or cancel anytime in iOS Settings. Terms of Use (EULA): https://gutfix.ai/terms Privacy Policy: https://gutfix.ai/privacy IMPORTANT — NOT MEDICAL ADVICE GutFix provides general educational content and wellness support based on self-reported information. It does not diagnose, treat, cure, or prevent any medical condition and is not a substitute for professional medical care. If you have severe symptoms, a chronic condition, or take prescription medication, consult your healthcare provider before changing your supplement or nutrition routine. Data is encrypted in transit and at rest. You control your data — export or delete your account anytime from Settings.

Screenshots

Dark Matter Jiu Jitsu4 screens
GutFix4 screens

Verdict

The call

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.

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

ReceptionRating · Positive reviews · Number of ratings

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.

UpkeepUpdate frequency

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

Scorecard4 real differences · 6 level
Dark Matter Jiu Jitsu versus GutFix: the parameters behind the verdict, then further details
ParameterDark Matter Jiu JitsuGutFix
PriceFreeFree
Rating5.0 (1 ratings) — better4.5 (2 ratings)
Positive reviews—100.0% of reviews
Number of ratings12 — better
Update frequencyEvery 3 weeksEvery 8 days — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.1 — better16.0
Further details — not scored
Size22 MB55 MB
Age rating12+4+
DeveloperKorey KerberGUTFIX LTD

In-app purchases

None

Dark Matter Jiu Jitsu

No in-app purchases

6 purchases

GutFix

Subscriptions6
  • GutFix Pro — Founding$30.001 Month
  • GutFix Pro: Early Adopter$39.001 Month
  • GutFix Pro: Growth$49.001 Month
Show 3 more
  • GutFix Pro: Launch$59.001 Month
  • GutFix Pro$69.001 Month
  • GutFix 6-Month Plan$300.006 Months

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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