Comparison

Relentless Trainer vs Warrior Lab

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

Head to head
About

Relentless Trainer

This AI-powered coach offers personalized daily workouts for a wide range of fitness disciplines, adapting to your current state and goals. It includes nutrition programs, extensive exercise libraries, and integrates with health apps and smart devices.

Highlights
  • AI-powered personalized workouts
  • Nutrition programs
  • 1200+ exercises with videos
  • Flexible training time and equipment
  • Specialized training tracks
  • Health app integration
Features
Read full description

Relentless Trainer: Your AI-Powered Personal Coach Born from the CrossFit® community and backed by over 10 years of data, we present Relentless Trainer - the first AI trainer for CrossFit®, Weightlifting, Gymnastics, Strength Training, Endurance sports, Mobility, Hyrox, Bodybuilding, Hybrid training, ATHX and Calisthenics. Race-optimized goal engine for Running, Skiing, Biking and Rowing. We even have Tactical Fitness, a specialized track for military and rescue staff. Forget generic training programs. Relentless Trainer adapts your workout daily based on: Your current state Your fitness level Your recent training history Your strengths and weaknesses Features: Nutrition program for weight loss or muscle mass Personalized workouts Over 1200 exercises with descriptions and videos Flexible training time and equipment Specialized training tracks Integration with health apps and smart devices Whether you want to improve your Snatch, Squat, Bench press, rowing, running, pull-ups, or muscle-ups, the trainer has you covered. Relentless Trainer is a month-to-month subscription service, easily cancellable anytime. No long-term contracts or cancellation fees - we just want you to love training! Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

Warrior Lab

This app helps HYROX and hybrid race athletes train strategically, track nutrition, and analyze performance. It offers structured plans, workout logging, race readiness assessment, and community features. Advanced tools and full plan libraries are available through a premium subscription.

Highlights
  • Structured training plans
  • Workout logging and analysis
  • Nutrition tracking
  • Race readiness assessment
  • Community features
  • Apple Watch integration
  • Doubles training support
Features
Read full description

Train by Science. Perform with Strategy. Warrior Lab brings your training, movement analysis, nutrition and wearable data together, with clear guidance on what to work on next. Whether you're preparing for your first HYROX, aiming for a new personal best or building your fitness, you can see where you are, what's improving and what needs more attention. ••• Test. Analyze. Train. Retest. Start with baseline tests to understand your strengths and where you have room to improve. The app will match you to a HYROX Performance Coach created training plan that is suited to your goals, experience and equipment, then follow your sessions and log how they went. Warrior Lab tells you when it's time to retest and suggests training adjustments based on your results and feedback, so your next steps reflect the progress you're making. ••• See where your technique needs work. Biometric Movement Analysis gives you detailed feedback on your movement videos, with visual explanations, practical coaching cues and exercises to work on. See where your technique could improve and compare your assessments over time. ••• Understand how you're progressing toward your race. See how your running and each station are progressing, where you're strong and what needs more work. Follow your race readiness over time, keep your target in view and plan your pacing. Explore a potential new personal best with the PB Predictor, using your race history and available performance data. ••• Plan your Doubles race together. Connect with your partner, compare strengths and plan how to share the work at each station. Build a race strategy together while keeping track of your own training and progress. ••• See everything you need at a glance. Choose, resize and arrange dashboard widgets for training load, strength progress, activity, recovery, nutrition and more. Tap into the details whenever you want a closer look. Bring in heart rate, resting heart rate, heart rate variability, VO2 max, sleep and any other data shared by your compatible wearables through Apple Health. Connect Garmin to import recorded workouts, and log your training on your phone or Apple Watch. See your wearable data alongside your training, food and daily feedback for a more complete picture of your progress. ••• Log your food, any way you like. Use one-tap photo logging, scan a barcode or food label, search or describe what you ate. Track calories, protein, carbs and fat, with food and portion estimates you can adjust. Create recipes, save meals to log again, track water and follow your nutrition targets. Look back over your food logs and trends to see how you're fueling your training. ••• Keep track of what matters to you. Choose the progress metrics you want to record, add your own and follow the changes over time. Keep body measurements and progress photos together. Set up habits with goals and schedules that suit you, log them in a couple of taps and see how consistently you're following through. From strength and race times to sleep and everyday routines, you can keep it all in one place. Download free, with optional Pro subscriptions for full training plans and advanced analysis, race and nutrition tools. Personal 1-on-1 coaching is available separately. Warrior Lab is an independent app from Warrior Performance Lab.

Screenshots

Relentless Trainer4 screens
Warrior Lab4 screens

Verdict

The call

The clearest difference is monetization model: Warrior Lab at freemium against Relentless Trainer's subscription. Relentless Trainer's advantage is update cadence (every 3 days vs every 2 weeks) and ratings volume (15 vs 3). 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Relentless Trainer sells 9 in-app purchases, starting at $9.99 per month and Warrior Lab sells 10 in-app purchases, starting at $29.00 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.9 for Relentless Trainer against 5.0 for Warrior Lab. That said, the two scores are not equally well evidenced: Relentless Trainer has 15 ratings behind it against 3, so its average is the more settled of the two.

UpkeepUpdate frequency

Relentless Trainer ships an update every 3 days, Warrior Lab every 2 weeks. The most recent releases landed on November 7, 2026 and November 4, 2026 respectively.

Scorecard3 real differences · 7 level
Relentless Trainer versus Warrior Lab: the parameters behind the verdict, then further details
ParameterRelentless TrainerWarrior Lab
PriceFreeFree
Rating4.9 (15 ratings)5.0 (3 ratings) — better
Positive reviews60.0% of reviews—
Number of ratings15 — better3
Update frequencyEvery 3 days — betterEvery 2 weeks
AdsNoNo
In-app purchasesYesYes
MonetizationSubscriptionFreemium — better
DevicesiPhone, Apple WatchiPhone, Apple Watch
Requires iOS16.616.4 — better
Further details — not scored
Size229 MB98 MB
Age rating4+4+
DeveloperRelentless Method ABPono Software Inc.

Customer experience

Relentless Trainer

All ratings15 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews10 reviews
Positive60.0%
Neutral10.0%
Negative30.0%

Warrior Lab

All ratings3 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

9 purchases

Relentless Trainer

Subscriptions9
  • Dash Monthly Subscription14 Days trial$9.991 Month
  • Core Monthly Subscription14 Days trial$17.991 Month
  • Monthly14 Days trial$23.991 Month
Show 6 more
  • Dash Quarterly Subscription14 Days trial$23.993 Months
  • Core Quarterly Subscription14 Days trial$44.993 Months
  • Quarterly14 Days trial$59.993 Months
  • Dash Yearly Subscription14 Days trial$79.991 Year
  • Core Yearly Subscription14 Days trial$149.991 Year
  • Yearly14 Days trial$195.991 Year
10 purchases

Warrior Lab

Subscriptions1
  • Warrior Lab PRO Monthly$29.001 Month
One-time9
  • 12-week Beginner Training Plan$19.00
  • 12-week NEW TO HYROX Plan$19.00
  • 12-week Intermediate Plan$19.00
Show 6 more
  • 12-week Advanced/Pro Plan$19.00
  • 8-Week Beginner HYROX / HYBRID$25.00
  • 8-Week Beginner Fat Loss Plan$29.00
  • 14-Week Intermediate HYROX$49.00
  • Holo Ikaika Intermediate 12wk$59.00
  • 12-week Prep To Pro Plan$59.00

Questions

Is Relentless Trainer free?
Relentless Trainer is free to download, with in-app purchases available.
Is Warrior Lab free?
Warrior Lab is free to download, with in-app purchases available.
Which has better reviews, Relentless Trainer or Warrior Lab?
Warrior Lab is rated higher. Relentless Trainer averages 4.9 out of 5 from 15 ratings, while Warrior Lab averages 5.0 from 3 ratings.
Do Relentless Trainer or Warrior Lab have ads?
Neither Relentless Trainer nor Warrior Lab shows ads.
Which is updated more often, Relentless Trainer or Warrior Lab?
Relentless Trainer ships an update every 3 days, and Warrior Lab every 2 weeks. Most recently, Relentless Trainer was updated on November 7, 2026 and Warrior Lab on November 4, 2026.

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