Comparison

hDrop App vs AbsolutSweat

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

Head to head
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

About

AbsolutSweat

Features
Read full description

This is a biochip-based integrated circuit miniaturization, a professional tool for accurate detection and analysis of markers in sweat

Screenshots

hDrop App4 screens
AbsolutSweat4 screens

Verdict

The call

The clearest difference is in-app purchases: AbsolutSweat at none against hDrop App's 2. On price, update cadence, ads 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. AbsolutSweat asks for nothing beyond the download.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly fortnightly. The most recent releases landed on September 14, 2026 and September 20, 2026 respectively.

Scorecard1 real difference · 9 level
hDrop App versus AbsolutSweat: the parameters behind the verdict, then further details
ParameterhDrop AppAbsolutSweat
PriceFreeFree
Rating3.7 (11 ratings) — better—
Positive reviews40.0% of reviews—
Number of ratings11 — better—
Update frequencyFortnightlyFortnightly
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree—
DevicesiPhone, iPodiPhone, iPod
Requires iOS15.615.6
Further details — not scored
Size59 MB42 MB
Age rating4+4+
DeveloperhDrop Technologies Inc.Shenzhen Refresh Biosensing Technology Co., Ltd.

In-app purchases

2 purchases

hDrop App

Subscriptions2
  • hDrop Lab7 Days trial$12.991 Month
  • hDrop Lab7 Days trial$89.991 Year
None

AbsolutSweat

No in-app purchases

Questions

Is hDrop App free?
hDrop App is free to download, with in-app purchases available.
Is AbsolutSweat free?
AbsolutSweat is free to download, with no in-app purchases.
Do hDrop App or AbsolutSweat have ads?
Neither hDrop App nor AbsolutSweat shows ads.
Which is updated more often, hDrop App or AbsolutSweat?
hDrop App ships an update fortnightly, and AbsolutSweat fortnightly. Most recently, hDrop App was updated on September 14, 2026 and AbsolutSweat on September 20, 2026.

Other comparisons