Comparison

KetoAir vs Phy Partner

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

Head to head
About

KetoAir

This device and companion app help you monitor your body's fat-burning status by measuring acetone levels in your breath. Get instant, accurate results to understand how your diet and exercise affect your ketosis.

Highlights
  • Instant breath acetone measurement
  • Accurate real acetone sensor
  • Bluetooth device connectivity
  • Log ketosis records
  • Monitor fat-burning status
  • Track diet and exercise impact
Features
Read full description

KetoAir is a breathlayzer that provides accurate and instant results in just a single blow. KetoAir Breathlayzer: •Accurate, real acetone sensor •Quick and easy - Just a single blow, get the result in seconds •Test anytime and anywhere •Keep yourself monitored and motivated, helping you to sustain your perseverance KetoAir App: •Log your ketosis record •Connect the device via Bluetooth Introducing the KetoAir Breathalyzer - the perfect tool for health and wellness conscious individuals who are looking to optimize their ketosis state and body fat burning rate! This pocket-sized breathalyzer provides accurate and instant results in just a single blow, giving you the ability to monitor how different foods affect your ketone level. By measuring the level of acetone in your breath, which is produced by the liver during the process of ketone energy formation, you can determine your body's fat burning status and adjust your diet accordingly. Without pain, you can test your ketone levels anytime and anywhere, keeping yourself motivated to reach your optimal ketosis state and fat burning rate. Plus, breath acetone levels can be influenced by certain body measurements, such as body composition and exercise, giving you even more insight into your overall health and wellness. No more guessing on your body's fat burning potential. Take control of your health and wellness with the KetoAir Breathalyzer. Check out the weight management reference article to learn more about how breath acetone and body measurements are related and how you can optimize your ketosis state for maximum fat burning potential. Disclaimer: Always seek a doctor’s advice in addition to using this app and before making any medical decisions. The KetoAir device has registered with the U.S. Food and Drug Administration as Class 1 medical device. Weight management reference article: https://onlinelibrary.wiley.com/share/7GUVTR5WWPWNCY9KPIYE?target=10.1002/oby.21242

About

Phy Partner

This app uses advanced computer vision on your iPhone or iPad to capture precise 3D posture scans. It's designed for professionals to easily assess movement health and integrate with a companion platform for client reports.

Highlights
  • Professional 3D posture scanning
  • Advanced computer vision technology
  • No special equipment required
  • Seamless integration with Phy Health app
  • Fast and accurate scan capture
  • Simple interface for professionals
Read full description

Professional 3D posture scanning, made simple. Phy Partner is the dedicated scanning app for coaches, clinicians, and organizations focused on better movement health. Using advanced computer vision, it captures precise 3D posture scans directly from your iPhone or iPad — no special equipment required. Designed to work seamlessly with the Phy Health app, Phy Partner lets you perform posture scans quickly and accurately, while clients view their reports and insights within Phy Health. Features: - Fast, accurate 3D posture capture - Simple interface for professional use - Secure integration with the Phy Health platform Scan with confidence. Power better movement with Phy.

Screenshots

KetoAir4 screens
Phy Partner2 screens

Verdict

The call

The clearest difference is rating: Phy Partner at 5.0 against KetoAir's 1.5. On price, ratings volume, update cadence and ads 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. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Phy Partner holds the better App Store score, 5.0 against 1.5. Both are backed by a comparable volume of ratings — 2 and 1 respectively.

UpkeepUpdate frequency

KetoAir ships an update every 2 months, Phy Partner every 6 weeks. The most recent releases landed on October 6, 2026 and October 30, 2026 respectively.

Scorecard1 real difference · 9 level
KetoAir versus Phy Partner: the parameters behind the verdict, then further details
ParameterKetoAirPhy Partner
PriceFreeFree
Rating1.5 (2 ratings)5.0 (1 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings2 — better1
Update frequencyEvery 2 monthsEvery 6 weeks — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS16.4 — better17.0
Further details — not scored
Size60 MB29 MB
Age rating4+4+
DeveloperQi Diagnostics LimitedPhyxd, Inc.

Customer experience

KetoAir

All ratings1 ratings
Positive0.0%
Neutral0.0%
Negative100.0%

Phy Partner

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

KetoAir

No in-app purchases

None

Phy Partner

No in-app purchases

Questions

Is KetoAir free?
KetoAir is free to download, with no in-app purchases.
Is Phy Partner free?
Phy Partner is free to download, with no in-app purchases.
Which has better reviews, KetoAir or Phy Partner?
Phy Partner is rated higher. KetoAir averages 1.5 out of 5 from 2 ratings, while Phy Partner averages 5.0 from 1 ratings.
Do KetoAir or Phy Partner have ads?
Neither KetoAir nor Phy Partner shows ads.
Which is updated more often, KetoAir or Phy Partner?
KetoAir ships an update every 2 months, and Phy Partner every 6 weeks. Most recently, KetoAir was updated on October 6, 2026 and Phy Partner on October 30, 2026.

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