Comparison

hDrop App vs Aquivalent

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

Aquivalent

This app uses AI and a specialized kit to provide accurate water testing for pools and hot tubs. Simply scan test strips for instant readings on key chemical levels, helping you maintain healthy and safe water while saving on chemical costs.

Highlights
  • AI-enabled water testing
  • Scan test strips for instant readings
  • Tests for chlorine, alkalinity, pH, and more
  • Durable and protective test strip kit
  • Cost savings on pool chemicals
  • Compatible with iPhone
Features
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Experience unparalleled water testing accuracy with our AI-enabled app and aqua balancing kit. Compatible with iPhone, it transforms your smartphone into a precise water testing device for pools and hot tubs. Scan your test strips for instant, accurate readings, surpassing traditional methods. Our test strips are 100% thicker and 50% wider, ensuring reliability and ease of use. They test for free chlorine, total chlorine, total hardness, cyanuric acid, total alkalinity, and pH. The included protective case is rugged, waterproof, dustproof, drop-proof, and buoyant. This all-in-one kit simplifies pool care, serving as a water hardness test kit, chlorine tester, and green pool treatment. With 100 strips included, our kit lasts twice as long as others, reducing repurchase needs and cost per test. Smart technology, durable materials, and protective casing provide a reliable system for clear and safe water. Save 15-30% on annual chemical costs with our accurate system, eliminating overcompensation and ensuring balanced water. Ideal for maintaining your pool or spa with precision and cost efficiency, ensuring pristine, inviting water every time you swim

Screenshots

hDrop App4 screens
Aquivalent4 screens

Verdict

The call

The clearest difference is review sentiment: Aquivalent at 80% against hDrop App's 40%. Aquivalent also leads on in-app purchases (none vs 2). hDrop App's advantage is rating (3.7 vs 3.5) and update cadence (fortnightly vs monthly). On price, ratings volume, ads and monetization model 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. Aquivalent asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

hDrop App holds the better App Store score, 3.7 against 3.5. Both are backed by a comparable volume of ratings — 11 and 8 respectively. Written reviews complicate that: 40% of hDrop App's written reviews are positive against 80% of Aquivalent's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

hDrop App ships an update fortnightly, Aquivalent monthly. The most recent releases landed on September 14, 2026 and June 5, 2026 respectively.

Scorecard4 real differences · 6 level
hDrop App versus Aquivalent: the parameters behind the verdict, then further details
ParameterhDrop AppAquivalent
PriceFreeFree
Rating3.7 (11 ratings) — better3.5 (8 ratings)
Positive reviews40.0% of reviews80.0% of reviews — better
Number of ratings11 — better8
Update frequencyFortnightly — betterMonthly
AdsNoNo
In-app purchasesYesNo — better
MonetizationFreeFree
DevicesiPhone, iPod — betteriPhone
Requires iOS15.6 — better16.0
Further details — not scored
Size59 MB78 MB
Age rating4+4+
DeveloperhDrop Technologies Inc.Aquatic clear solutions, LLC

Customer experience

hDrop App

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

Aquivalent

All ratings8 ratings
Positive62.5%
Neutral0.0%
Negative37.5%
Written reviews10 reviews
Positive80.0%
Neutral0.0%
Negative20.0%

In-app purchases

2 purchases

hDrop App

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

Aquivalent

No in-app purchases

Questions

Is hDrop App free?
hDrop App is free to download, with in-app purchases available.
Is Aquivalent free?
Aquivalent is free to download, with no in-app purchases.
Which has better reviews, hDrop App or Aquivalent?
hDrop App is rated higher. hDrop App averages 3.7 out of 5 from 11 ratings, while Aquivalent averages 3.5 from 8 ratings.
Do hDrop App or Aquivalent have ads?
Neither hDrop App nor Aquivalent shows ads.
Which is updated more often, hDrop App or Aquivalent?
hDrop App ships an update fortnightly, and Aquivalent monthly. Most recently, hDrop App was updated on September 14, 2026 and Aquivalent on June 5, 2026.

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