Comparison

MX3 Diagnostics vs hDrop App

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

Head to head
About

MX3 Diagnostics

Measure and track hydration and sweat sodium levels quickly and conveniently. This system allows athletes, coaches, and managers to manage hydration data for individuals or teams anytime, anywhere. Personalize assessments and manage athlete accounts.

Highlights
  • Perform hydration measurements
  • Perform sweat sodium measurements
  • View and edit historical data
  • Personalize hydration assessment
  • Create team/athlete accounts
  • Update device firmware
Features
Read full description

Say goodbye to time-consuming and inconvenient testing with the MX3 Hydration Testing System. With the MX3 Hydration Testing System athletes, coaches, and team managers can finally measure, track, and manage hydration - anytime, anywhere. With the MX3 Diagnostics app you can: - Perform Hydration Measurements - Perform Sweat Sodium Measurements - View and edit historical measurement data - Personalize hydration assessment with baseline measurements - Create accounts for your team, organization or athletes - Update MX3 LAB firmware

About

hDrop App

This wearable sensor tracks fluid and sodium loss through sweat during exercise. It provides personalized hydration insights based on your unique physiology, helping endurance athletes optimize their performance. Analyze sweat loss, sodium intake, and rate trends to build a tailored hydration strategy.

Highlights
  • Wearable sweat sensor
  • Fluid and sodium loss tracking
  • Personalized hydration strategy
  • Sweat rate trend analysis
  • Workout data analysis
  • Comparison across conditions
Features
Read full description

hDrop is the first wearable sweat sensor designed to extract data from your sweat during exercise. Independently validated research shows that hDrop is the world’s most accurate wearable sweat sensor, helping athletes understand how much fluid and sodium they lose while training. Whether you are preparing for a marathon, triathlon, cycling event, or intense training session, hydration strategy matters. Generic hydration advice does not account for the fact that every athlete sweats differently. hDrop helps you personalize your hydration based on real physiological data. Measure What You Lose in Sweat hDrop continuously monitors your sweat during exercise and provides insights that help you understand your body's hydration demands. Track key metrics including: • Sweat Loss – Estimate how much fluid you lose during training • Sweat Sodium Loss – Understand electrolyte loss to guide sodium intake • Sweat Rate Trends – Learn how your hydration needs change with intensity and environment Build Your Personal Hydration Strategy Use your sweat data to create a hydration plan tailored to your physiology. With the hDrop app you can: • Analyze sweat loss across workouts • Understand sodium losses during exercise • Compare sessions in different weather conditions • Improve hydration planning for races and long training sessions Designed for Endurance Athletes hDrop is built for athletes who depend on hydration precision: • Triathlon • Marathon and running • Cycling • Trail and ultra endurance sports • Heat training and high-intensity workouts Scientifically Validated Technology hDrop technology has been independently validated by university research, demonstrating high accuracy in estimating sweat loss and sodium loss during exercise. The system was developed with a focus on translating laboratory sweat testing into a wearable field solution for athletes. Unlock Advanced Features with hDrop Lab The optional hDrop Lab membership provides deeper analysis tools, advanced hydration insights, and personalized hydration guidance based on your sweat profile. Hydrate smarter. Perform better. DISCLAIMER: hDrop is not intended to diagnose any health condition. hDrop is not a medical device. Please do not take any critical decisions based on hDrop's current data. Optional Add-On Terms: hDrop Lab is available as an optional add-on auto-renewable subscription. Payment will be charged to your Apple ID account at confirmation of purchase. The optional subscription automatically renews unless canceled at least 24 hours before the end of the current period. You can manage and cancel your subscription in your App Store account settings. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://hdroptech.com/privacy-policy

Screenshots

MX3 Diagnostics4 screens
hDrop App4 screens

Verdict

The call

The clearest difference is rating: MX3 Diagnostics at 5.0 against hDrop App's 3.7. MX3 Diagnostics also leads on in-app purchases (none vs 2) and iOS requirement (10.0 vs 15.6). hDrop App's advantage is update cadence (fortnightly vs monthly) and ratings volume (11 vs 2). On price, ads, monetization model and device support 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. hDrop App sells 2 in-app purchases, starting at $12.99 per month. MX3 Diagnostics asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

MX3 Diagnostics holds the better App Store score, 5.0 against 3.7. That said, the two scores are not equally well evidenced: hDrop App has 11 ratings behind it against 2, so its average is the more settled of the two.

UpkeepUpdate frequency

MX3 Diagnostics ships an update monthly, hDrop App fortnightly. Both last shipped on October 2, 2026.

Scorecard5 real differences · 5 level
MX3 Diagnostics versus hDrop App: the parameters behind the verdict, then further details
ParameterMX3 DiagnosticshDrop App
PriceFreeFree
Rating5.0 (2 ratings) — better3.7 (11 ratings)
Positive reviews—40.0% of reviews
Number of ratings211 — better
Update frequencyMonthlyFortnightly — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFreeFree
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS10.0 — better15.6
Further details — not scored
Size124 MB59 MB
Age rating4+4+
DeveloperMX3 DIAGNOSTICShDrop Technologies Inc.

Customer experience

MX3 Diagnostics

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

hDrop App

All ratings11 ratings
Positive63.6%
Neutral0.0%
Negative36.4%
Written reviews15 reviews
Positive40.0%
Neutral0.0%
Negative60.0%

In-app purchases

None

MX3 Diagnostics

No in-app purchases

2 purchases

hDrop App

Subscriptions2
  • hDrop Lab7 Days trial$12.991 Month
  • hDrop Lab7 Days trial$89.991 Year

Questions

Is MX3 Diagnostics free?
MX3 Diagnostics is free to download, with no in-app purchases.
Is hDrop App free?
hDrop App is free to download, with in-app purchases available.
Which has better reviews, MX3 Diagnostics or hDrop App?
MX3 Diagnostics is rated higher. MX3 Diagnostics averages 5.0 out of 5 from 2 ratings, while hDrop App averages 3.7 from 11 ratings.
Do MX3 Diagnostics or hDrop App have ads?
Neither MX3 Diagnostics nor hDrop App shows ads.
Which is updated more often, MX3 Diagnostics or hDrop App?
MX3 Diagnostics ships an update monthly, and hDrop App fortnightly. Most recently, MX3 Diagnostics was updated on October 2, 2026 and hDrop App on October 2, 2026.

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