Comparison

HYDROX vs Leeon

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

Head to head
About

HYDROX

This app calculates your personalized daily hydration target based on body weight and training intensity, using scientific protocols. It offers one-tap logging, smart reminders, and advanced features for athletes and fitness enthusiasts. Syncs with HealthKit and offers an Apple Watch app.

Highlights
  • Personalized hydration targets
  • Training intensity adjustment
  • One-tap logging
  • Smart reminders
  • HealthKit sync
  • Apple Watch app
  • Widgets for home and lock screen
Features
Read full description

Your hydration target, calculated. Not guessed. HYDROX uses your body weight and training intensity to set a daily target based on the same protocols used in elite athletic programs (combining guidance from the American College of Sports Medicine and published research from leading sports science researchers) Built for athletes who train: Barry's, HYROX, runners, cyclists, surfers, skiers, sports enthusiasts and everyday athletes. Not step-counter civilians SET YOUR BASELINE Your target comes from your body weight using the American College of Sports Medicine (ACSM) protocol, not a generic "8 glasses a day" number TRAINING MODE Select Easy, Moderate, or Hard and your daily goal adjusts using the Galpin equation based on body weight and workout intensity ONE-TAP LOGGING Tap the gauge to log, long-press for custom amounts, or log from your widget or lock screen without opening the app SMART REMINDERS Hourly pacing that adjusts to your progress, backs off when you're ahead, and nudges when you're behind HYDROX PRO • Apple Watch app with gauge and complications on any watch face • Log from your wrist in a single tap • Adaptive Hydration that reads workout data from HealthKit and adjusts your daily target automatically • Auto-intensity based on heart rate, so a hard session pushes your target up and a rest day keeps it at baseline THE SCIENCE Baseline from ACSM guidelines. Training intensity from the Galpin equation. Race Packs cite 16+ studies on sodium loading, HRV monitoring, and post-exercise rehydration. WHOOP research links hydration to higher HRV. And coffee counts as hydration (Killer et al 2014). EVERYTHING ELSE • HealthKit sync • Lock screen and home screen widgets • Quick actions from home screen • No account, no ads, data stays on your device Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://hydrox.app/privacy.html

About

Leeon

Features
Read full description

No more generic workout programs. No more training alone. LEEON is here to accompany you on your fitness journey. LEEON is an app designed to help users optimize their personal training process. It allows you to personalize your workout schedule, meal plans, and track your progress — helping you become stronger, healthier, and achieve sustainable results. With LEEON, you will: Connect directly with your personal coach. Receive personalized workout programs and meal plans. Track your training progress through each phase. Get support anytime, anywhere. Key Features: Personalized Training Plans: Workout programs tailored to your goals, physical condition, and daily schedule. Flexible Nutrition Plans: Meal plans adjusted to your preferences and lifestyle, easy to follow and adaptable as your body changes. Workout Schedule: Track your training calendar with regular updates from your coach. Convenient Widgets: Quickly view your workout schedule and training status right on your phone screen. LEEON — The All-in-One App Fitness Coaching.

Screenshots

HYDROX4 screens
Leeon3 screens

Verdict

The call

The clearest difference is in-app purchases: Leeon at none against HYDROX's 4. HYDROX's advantage is device support (3 vs 1). On price, update cadence, ads 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. HYDROX sells 4 in-app purchases, starting at $0.99 per 7 days. Leeon asks for nothing beyond the download.

UpkeepUpdate frequency

HYDROX ships an update weekly, Leeon every 6 days. Both last shipped on October 2, 2026.

Scorecard2 real differences · 8 level
HYDROX versus Leeon: the parameters behind the verdict, then further details
ParameterHYDROXLeeon
PriceFreeFree
Rating5.0 (4 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings4 — better—
Update frequencyWeeklyEvery 6 days — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFreemium—
DevicesiPhone, iPad, Apple Watch — betteriPhone
Requires iOS17.0 — better17.6
Further details — not scored
Size8 MB61 MB
Age rating4+4+
DeveloperBALL VENTURES LLCDuy Le Duc

In-app purchases

4 purchases

HYDROX

Subscriptions2
  • HYDROX Pro7 Days trial$0.997 Days
  • HYDROX Pro7 Days trial$24.991 Year
One-time2
  • HYROX Americas DC Race Pack$14.99
  • HYROX Miami Race Pack$14.99
None

Leeon

No in-app purchases

Questions

Is HYDROX free?
HYDROX is free to download, with in-app purchases available.
Is Leeon free?
Leeon is free to download, with no in-app purchases.
Do HYDROX or Leeon have ads?
Neither HYDROX nor Leeon shows ads.
Which is updated more often, HYDROX or Leeon?
HYDROX ships an update weekly, and Leeon every 6 days. Most recently, HYDROX was updated on October 2, 2026 and Leeon on October 2, 2026.

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