Comparison

Ultrahuman vs Sahha

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 creates a unified dashboard for your health performance, using data from a smart ring to provide actionable scores for sleep, activity, recovery, and cardiovascular health. It also integrates with continuous glucose monitors for real-time metabolic health tracking.

Highlights
  • Unified health dashboard
  • Sleep, activity, and recovery scores
  • Heart rate and HRV monitoring
  • Continuous glucose monitoring integration
  • Metabolic health tracking
  • Movement Index
  • Group 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

Sahha

This app monitors sleep and movement activity by integrating with the Health app to predict wellbeing. It serves as a companion to a web dashboard for health and fitness research. Users are advised to consult a doctor for medical decisions.

Highlights
  • Health app integration
  • Sleep and movement monitoring
  • Wellbeing prediction
  • Companion to web dashboard
  • Developer tool
Features
Read full description

Sahha is an app for assisting in health & fitness research. It works as a companion to the Sahha web dashboard. This app integrates with the Health app to monitor your sleep and movement activity to predict your wellbeing. It is used as a developer tool only. We advise all our users to seek a doctor’s advice in addition to using this app and before making any medical decisions.

Screenshots

Ultrahuman4 screens
Sahha4 screens

Verdict

The call

The clearest difference is review sentiment: Sahha at 100% against Ultrahuman's 46%. Sahha also leads on in-app purchases (none vs 10) and ads (none vs shown). Ultrahuman's advantage is ratings volume (8K vs 1) and update cadence (every 3 days vs fortnightly). On price 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 10 in-app purchases, starting at $2.90 per month. Sahha asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Sahha holds the better App Store score, 5.0 against 4.5. 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. Written reviews point the same way: 46% of Ultrahuman's written reviews are positive against 100% of Sahha's.

UpkeepUpdate frequency

Ultrahuman ships an update every 3 days, Sahha fortnightly. The most recent releases landed on November 11, 2026 and November 3, 2026 respectively.

Scorecard8 real differences · 2 level
Ultrahuman versus Sahha: the parameters behind the verdict, then further details
ParameterUltrahumanSahha
PriceFreeFree
Rating4.5 (8K ratings)5.0 (1 ratings) — better
Positive reviews46.2% of reviews100.0% of reviews — better
Number of ratings8K — better1
Update frequencyEvery 3 days — betterFortnightly
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPad, Mac, Apple TV, Apple Watch — betteriPhone, iPad
Requires iOS16.0 — better16.6
Further details — not scored
Size751 MB11 MB
Age rating4+4+
DeveloperULTRAHUMAN HEALTHCARE PRIVATE LIMITEDSahha Pty Ltd

Customer experience

Ultrahuman

All ratings7,975 ratings
Positive87.6%
Neutral3.7%
Negative8.7%
Written reviews1,158 reviews
Positive46.2%
Neutral11.1%
Negative42.7%

Sahha

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews2 reviews
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

Sahha

Not enough reviews yet to summarise bugs or requests.

In-app purchases

10 purchases

Ultrahuman

Subscriptions9
  • 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 6 more
  • Ultrahuman Max7 Days trial$9.991 Month
  • Cardio Adaptability - Yearly$24.001 Year
  • Monthly$24.991 Month
  • Cycle & Ovulation Yearly$39.991 Year
  • Respiratory Health PowerPlug-Yearly$39.991 Year
  • Ultrahuman Max14 Days trial$99.991 Year
One-time1
  • UltrahumanX - 2 years$54.00
None

Sahha

No in-app purchases

Questions

Is Ultrahuman free?
Ultrahuman is free to download, with in-app purchases available.
Is Sahha free?
Sahha is free to download, with no in-app purchases.
Which has better reviews, Ultrahuman or Sahha?
Sahha is rated higher. Ultrahuman averages 4.5 out of 5 from 8K ratings, while Sahha averages 5.0 from 1 ratings.
Do Ultrahuman or Sahha have ads?
Ultrahuman shows ads; Sahha does not.
Which is updated more often, Ultrahuman or Sahha?
Ultrahuman ships an update every 3 days, and Sahha fortnightly. Most recently, Ultrahuman was updated on November 11, 2026 and Sahha on November 3, 2026.

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