Comparison

Morpheus Training vs Airofit Legacy

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

Head to head
About

Morpheus Training

This app optimizes cardio training and recovery by providing personalized heart rate zones and weekly targets. It uses HRV data to guide intensity and volume, helping users improve fitness and conditioning with zone-based interval training.

Highlights
  • Personalized heart rate zones
  • CardioSmart features
  • Zone-based interval training (ZBIT)
  • Weekly heart rate zone targets
  • Daily recovery score
  • Integrates with wearables and Apple Health Kit
Read full description

Personalized Cardio Made Simple. Morpheus is the only system that gives you truly personalized cardio — dynamic heart rate zones, daily recovery scores, and weekly training targets that adapt to your body every single day. No more guessing how hard to train, which zone you should be in, or how much cardio you need each week. Your Recovery. Your Zones. Your Targets. When paired with the Morpheus M7 heart rate monitor, Morpheus measures your HRV and resting heart rate each morning to calculate your daily recovery score. From there, it sets personalized heart rate zones and weekly targets matched to your fitness level, your goal, and how your body is responding to training. Unlike other apps that give everyone the same fixed zones based on percentages of max heart rate, Morpheus zones are anchored to your real physiological thresholds — the points at which your body shifts how it produces and uses energy. And because those thresholds change daily with your recovery, your zones adjust too. This is especially important for training in your Zone 2 — the most talked about training zone in endurance and longevity research. Zone 2 is most effective when you're training at the right intensity for your individual physiology. Too easy and you're leaving progress on the table. Too hard and you're no longer in Zone 2 at all. Because Morpheus personalizes your Zone 2 range to your actual aerobic threshold — and adjusts it daily based on your recovery — you can be confident you're always training in the zone that delivers the most benefit, not just a static percentage of max heart rate that often misses the mark. Please note: The Morpheus M7 heart rate monitor is required to unlock HRV measurement, recovery scoring, and personalized heart rate zones and targets. Build Your VO2 Max. Improve Your Health. Live Longer. VO2 max — your body's ability to use oxygen during exercise — is one of the strongest predictors of long term health and longevity. Research consistently shows that people with higher VO2 max live longer, healthier lives with a significantly lower risk of cardiovascular disease. Morpheus is built around the training principles that drive VO2 max improvement most effectively. After analyzing data from more than 500,000 workouts and 1 million days of use, Morpheus has learned exactly how much time in each of its three heart rate zones drives the fastest improvements in aerobic fitness and conditioning. Each week it sets a personalized target range for your low, moderate, and high intensity training — so you always know you’re giving your body what it needs and can recover from. Meet your targets consistently and watch your VO2 max and fitness improve. The Morpheus Methods - Train with Purpose Morpheus gives you 12 guided training methods to choose from, each designed to target a specific zone and training purpose — so you can get the most out of every workout. Whether you're focused on building your aerobic base with sustained low intensity work, developing your conditioning for a sport, or pushing your peak fitness with high intensity efforts, there's a method designed for exactly that. Each method gives you a clear structure with your heart rate guiding every phase. No guesswork, no confusion. Just targeted training that’s designed for your body so you can get the most out of every workout.

About

Airofit Legacy

This app pairs with a breathing trainer device to help you measure and improve your respiratory strength and lung capacity. It offers customized training programs for various goals like athletic performance, relaxation, and stress reduction, with progress tracking.

Highlights
  • Informative lung tests
  • Targeted training programs
  • Challenging exercises with visual/audio guidance
  • Engaging activity tracking
  • Personalized profile and reminders
  • Breathing exercises for strength, tolerance, capacity, performance, and relaxation
Features
Read full description

Breath training has been under-prioritized in sports for too long, though scientific studies continuously prove its multiple benefits. Airofit has developed the first-ever breathing trainer that connects respiratory training with state-of-the-art app technology. Once the app is paired with the Airofit breathing trainer, you will need to take a lung test to measure your respiratory strength. After taking the lung test, you will have the option to choose one of the many programs to train your breathing. The programs will be customized according to your preference and physical condition. As a result, you can practice your breathing and keep track of your progress to see your improvements. The Airofit app is packed with loads of features, including: * INFORMATIVE LUNG TESTS: Measure your vital lung capacity and your maximal respiratory pressures. * TARGETED TRAINING PROGRAMS: Improve your physical performance by training towards specific goals. * CHALLENGING EXERCISES: Follow visual and audio instructions of how to breathe when you train. * ENGAGING ACTIVITY TRACKING: Track your progress and review your records for all the trainings and tests. * EASY PERSONAL CUSTOMIZATION: Set up reminders and personalize your profile to create the most out of your trainings. You can target you breathing training towards one of several goals, including: * RESPIRATORY STRENGTH: Enhance your respiratory power by training the strength of your lung muscles. * ANAEROBIC TOLERANCE: Increase your body's resistance towards lactate by increasing your ability to hold your breath. * VITAL LUNG CAPACITY: Increase your vital lung capacity by improving the flexibility of your lung muscles. * INSTANT PERFORMANCE: Boost your blood circulation and mental focus by breathing properly, just before important performances. * RELAXATION: Strengthen your state of mind and reduce stress levels by following meditative breathing patterns. Airofit is proven to improve your physical performance by up to 8% within just 8 weeks, training only 5-10 minutes twice a day. So, are you ready to join the top performing athletes who breathe better and strive to beat yesterday? Learn more about Airofit at Airofit.com. Terms of sale and service: https://www.airofit.com/pages/terms Jurisdiction Statement: Our app has obtained regulatory clearance for medical hardware in the European Union (EU) and complies with EU medical device regulations. However, we want to emphasize that our commitment to safety and compliance extends beyond the EU borders. Our products are designed to meet the highest international standards and are suitable for use in multiple jurisdictions. Users from all over the world can benefit from our app, knowing that it upholds the rigorous quality and safety standards required for medical hardware. Disclaimer: Airofit is not a medical app but a training app for respiratory muscles. please contact your doctor for any medical/health related issues.

Screenshots

Morpheus Training4 screens
Airofit Legacy4 screens

Verdict

The call

The clearest difference is in-app purchases: Morpheus Training at none against Airofit Legacy's 6. Morpheus Training also leads on rating (4.9 vs 4.5) and update cadence (every 11 days vs every 5 weeks). Airofit Legacy's advantage is review sentiment (76% vs 58%). On price, ratings volume, ads and monetization model 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. Airofit Legacy sells 6 in-app purchases, starting at $6.99 per month. Morpheus Training asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Morpheus Training holds the better App Store score, 4.9 against 4.5. Both are backed by a comparable volume of ratings — 894 and 1.3K respectively. Written reviews complicate that: 58% of Morpheus Training's written reviews are positive against 76% of Airofit Legacy's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

Morpheus Training ships an update every 11 days, Airofit Legacy every 5 weeks. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.

Scorecard4 real differences · 6 level
Morpheus Training versus Airofit Legacy: the parameters behind the verdict, then further details
ParameterMorpheus TrainingAirofit Legacy
PriceFreeFree
Rating4.9 (894 ratings) — better4.5 (1.3K ratings)
Positive reviews58.4% of reviews75.8% of reviews — better
Number of ratings8941.3K — better
Update frequencyEvery 11 days — betterEvery 5 weeks
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS15.1 — better16
Further details — not scored
Size71 MB182 MB
Age rating4+12+
DeveloperMorpheus Labs INCAirofit AS

Customer experience

Morpheus Training

All ratings630 ratings
Positive98.7%
Neutral0.3%
Negative1.0%
Written reviews113 reviews
Positive58.4%
Neutral12.4%
Negative29.2%

Airofit Legacy

All ratings1,339 ratings
Positive88.3%
Neutral2.5%
Negative9.2%
Written reviews712 reviews
Positive75.8%
Neutral7.9%
Negative16.3%

Bugs and requests

Morpheus Training

Not enough reviews yet to summarise bugs or requests.

Airofit Legacy

Reported bugs

4 issues
  • App not recognizing device or subscription
  • Inaccurate lung capacity measurements
  • Exercises not working as intended
  • Progress data being lost after app updates

Requested features

5 requests
  • Offline mode for training sessions
  • More customization options for training programs
  • Integration with Apple Health or other fitness apps
  • Better data export and analysis tools
  • Improved customer support and responsiveness

In-app purchases

None

Morpheus Training

No in-app purchases

6 purchases

Airofit Legacy

Subscriptions6
  • Airofit PRO (monthly)1 Month trial$6.991 Month
  • Airofit (Monthly)1 Month trial$9.991 Month
  • Airofit PRO (yearly)1 Month trial$39.991 Year
Show 3 more
  • Airofit Essential14 Days trial$39.991 Year
  • Airofit PRO (yearly)1 Month trial$59.001 Year
  • Airofit (Yearly)1 Month trial$84.001 Year

Questions

Is Morpheus Training free?
Morpheus Training is free to download, with no in-app purchases.
Is Airofit Legacy free?
Airofit Legacy is free to download, with in-app purchases available.
Which has better reviews, Morpheus Training or Airofit Legacy?
Morpheus Training is rated higher. Morpheus Training averages 4.9 out of 5 from 894 ratings, while Airofit Legacy averages 4.5 from 1.3K ratings.
Do Morpheus Training or Airofit Legacy have ads?
Neither Morpheus Training nor Airofit Legacy shows ads.
Which is updated more often, Morpheus Training or Airofit Legacy?
Morpheus Training ships an update every 11 days, and Airofit Legacy every 5 weeks. Most recently, Morpheus Training was updated on October 24, 2026 and Airofit Legacy on October 25, 2026.

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