Comparison

Ultrahuman vs Hreyfing

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

Head to head
About

Ultrahuman

This app synthesizes health data from a smart ring and continuous glucose monitors into actionable scores for sleep, activity, recovery, and metabolic health. It offers deep insights into your body's performance, helping you decode and improve your lifestyle.

Highlights
  • Health monitoring with smart ring
  • Movement Index tracking
  • Sleep Index analysis
  • Recovery metrics
  • Circadian rhythm alignment
  • Metabolic health insights
  • Real-time fitness tracking
Features
Read full description

Ultrahuman helps you measure your health performance by creating a unified dashboard of your health. Using metrics from the Ultrahuman Ring, such as Sleep, Activity, Heart Rate (HR), Heart Rate Variability (HRV), Skin Temperature, and SPO2, we generate actionable scores for sleep quality, physical activity, recovery, and cardiovascular health. This empowers you to decode and effectively improve your health and lifestyle. Additionally, Ultrahuman integrates with continuous glucose monitors, helping you track your glucose control and overall metabolic health in real-time through a daily Metabolic Score. **World-class product design & unmatched comfort** Awarded the renowned Red Dot Design Award, the Ultrahuman introduces the Ring AIR— the world’s lightest smart ring. It's not just a statement of style, it's your all-in-one health tracker. **Key features** 1. Health monitoring with elegance Monitor your sleep, movement, and recovery with the compact and comfortable Ultrahuman smart ring. 2. Innovation in movement Introducing the Movement Index, which redefines moving for better health by tracking steps, frequency of movement, and calorie burn. 3. Sleep decoded Dive deep into your sleep performance with our Sleep Index, analysing sleep stages, nap tracking, and SPO2. 4. Recovery—on your terms Navigate through stress by understanding your body's response with metrics like heart rate variability, skin temperature, and resting heart rate. 5. Harmonised circadian rhythms Align with your circadian clock to enhance energy levels and productivity throughout the day. 6. Smart stimulant use Optimise your stimulant consumption with dynamic windows that aid adenosine clearance and minimise sleep disruption. 7. Real-time fitness tracking Engage with your workouts through live HR, HR zones, calories, and a running map. 8. Group tracking through Zones Stay engaged with friends and family through Zones, sharing and viewing sleep, recovery, and movement data seamlessly. 9. Deep metabolic insights Gain insights into your glucose control and understand the deep-seated impact of food on your body. **Global availability & seamless integration** Get your Ring AIR shipped anywhere in the world and enjoy hassle-free data syncing with Apple Health, keeping all your essential health information centralised and accessible. **Contact info** For any queries or support, please reach out to us at [support@ultrahuman.com]. We are glad to help you. **Legal and safety notice** Ultrahuman provides products and services designed for general fitness and wellness purposes. Ultrahuman's products and services are not intended to treat or diagnose any disease, and should not be any substitute for professional medical advice, diagnosis, or treatment. Terms of Use: https://www.ultrahuman.com/termsAndCondition Disclaimer: Ultrahuman's products and services i.e. Ultrahuman App and Ultrahuman Ring are not medical devices and are only intended to provide general information for users to improve their metabolic fitness and general wellness. The products and services are not intended for disease management, treatment, or prevention, and should not be relied upon for any diagnostic or treatment decision. We do not intend to substitute professional medical opinion on the treatment, diagnosis, prevention or alleviation of diabetes or any other disease or disability. Always consult with a doctor or qualified healthcare professional about any health condition and/or concerns, that you may have. Please do not disregard/delay seeking professional medical advice or treatment because of information read on or accessed through our products and services. Please work with your healthcare professional during the use of the third-party continuous glucose monitoring device (CGM) if you have a health condition. Abbott's CGM sensor has regulatory clearance in select countries, including but not limited to India, UAE, US, UK, EU, Iceland, and Switzerland.

About

Hreyfing

Access personalized training plans and track your progress with real-time coach support. Manage nutrition, set goals, and stay motivated with workout reminders and progress photos. Connect to wearable devices for seamless data syncing.

Highlights
  • Personalized training plans
  • Real-time coach messaging
  • Workout scheduling and tracking
  • Nutrition management
  • Progress photos and body measurements
  • Wearable device integration
Features
Read full description

Í Hreyfingar appinu nálgast þú sérsniðnar æfingaáætlanir þínar frá þjálfara Bestu aðildar. Þar hefur þú einnig alltaf aðgang að þjálfara Bestu aðildar sem veitir þér aðhaldið og hvatninguna sem þú þarft til að ná þínum markmiðum. Aðeins meðlimir Hreyfingar í Bestu aðild hafa aðgang að þjálfara Bestu aðildar í gegnum Hreyfingar appið. Kynntu þér Bestu aðild á hreyfing.is og byrjaðu að æfa með þjálfara strax í dag. - Access training plans and track workouts - Schedule workouts and stay committed by beating your personal bests - Track progress towards your goals - Manage your nutrition intake as prescribed by your coach - Set health and fitness goals - Message your coach in real-time - Track body measurements and take progress photos - Get push notification reminders for scheduled workouts and activities - Connect to wearable devices like Apple Watch (synced to Health app), Fitbit, and Withings to sync body stats instantly

Screenshots

Ultrahuman4 screens
Hreyfing4 screens

Verdict

The call

The clearest difference is rating: Ultrahuman at 4.5 against Hreyfing's 4.0. Ultrahuman also leads on update cadence (every 3 days vs every 6 weeks) and ratings volume (8K vs 1). Hreyfing's advantage is in-app purchases (none vs 18) and ads (none vs shown). On price, device support and iOS requirement 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. Ultrahuman sells 15 in-app purchases, starting at $2.90 per month. Hreyfing asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Ultrahuman holds the better App Store score, 4.5 against 4.0. That said, the two scores are not equally well evidenced: Ultrahuman has 8K ratings behind it against 1, so its average is the more settled of the two.

UpkeepUpdate frequency

Ultrahuman ships an update every 3 days, Hreyfing every 6 weeks. The most recent releases landed on October 31, 2026 and October 24, 2026 respectively.

Scorecard7 real differences · 4 level
Ultrahuman versus Hreyfing: the parameters behind the verdict, then further details
ParameterUltrahumanHreyfing
PriceFreeFree
Rating4.5 (8K ratings) — better4.0 (1 ratings)
Positive reviews46.6% of reviews—
Number of ratings8K — better1
Update frequencyEvery 3 days — betterEvery 6 weeks
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
Best chart rank#198 — better—
DevicesiPhone, iPad, Mac, Apple TV, Apple Watch — betteriPhone, iPad, iPod, Apple Watch
Requires iOS16.015.1 — better
Further details — not scored
Size744 MB156 MB
Age rating4+4+
DeveloperULTRAHUMAN HEALTHCARE PRIVATE LIMITEDHreyfing ehf

Customer experience

Ultrahuman

All ratings7,958 ratings
Positive87.6%
Neutral3.7%
Negative8.7%
Written reviews1,143 reviews
Positive46.6%
Neutral11.0%
Negative42.3%

Hreyfing

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

Bugs and requests

Ultrahuman

Reported bugs

5 issues
  • Frequent disconnections between ring and app
  • Inaccurate sleep and activity tracking
  • Firmware update issues causing data loss
  • Unreliable customer support and long response times
  • Compatibility problems with newer iOS versions

Requested features

5 requests
  • More customization options
  • Better integration with other apps and devices
  • Improved food tracking and logging
  • Enhanced workout tracking and analysis
  • Offline mode for app usage

Hreyfing

Not enough reviews yet to summarise bugs or requests.

In-app purchases

15 purchases

Ultrahuman

Subscriptions13
  • Cardio Adaptability - Monthly3 Days trial$2.901 Month
  • Cycle & Ovulation Monthly7 Days trial$3.991 Month
  • Respiratory Health - Monthly3 Days trial$3.991 Month
Show 10 more
  • UltraSync with Tesla - Monthly3 Days trial$6.901 Month
  • Ultrahuman Max7 Days trial$9.991 Month
  • Cardio Adaptability - Yearly$24.001 Year
  • Monthly$24.991 Month
  • UltrahumanX$29.991 Year
  • UltrahumanX - 1 year$36.001 Year
  • Cycle & Ovulation Yearly$39.991 Year
  • Respiratory Health PowerPlug-Yearly$39.991 Year
  • UltraSync with Tesla - Yearly7 Days trial$69.001 Year
  • Ultrahuman Max14 Days trial$99.991 Year
One-time2
  • Cardio Adaptability - 2 years$38.00
  • UltrahumanX - 2 years$54.00
None

Hreyfing

No in-app purchases

Questions

Is Ultrahuman free?
Ultrahuman is free to download, with in-app purchases available.
Is Hreyfing free?
Hreyfing is free to download, with no in-app purchases.
Which has better reviews, Ultrahuman or Hreyfing?
Ultrahuman is rated higher. Ultrahuman averages 4.5 out of 5 from 8K ratings, while Hreyfing averages 4.0 from 1 ratings.
Do Ultrahuman or Hreyfing have ads?
Ultrahuman shows ads; Hreyfing does not.
Which is updated more often, Ultrahuman or Hreyfing?
Ultrahuman ships an update every 3 days, and Hreyfing every 6 weeks. Most recently, Ultrahuman was updated on October 31, 2026 and Hreyfing on October 24, 2026.

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