Comparison

Ringside Arena vs HYDROX

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

Head to head
About

Ringside Arena

Features
Read full description

Téléchargez l'application Ringside Arena dès aujourd'hui pour planifier et programmer vos cours et locations de rings/octogones ! À partir de cette application mobile, vous pouvez consulter les horaires et vous inscrire. Optimisez votre temps et profitez de notre app pour vous inscrire aux cours à partir de votre appareil !

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

Screenshots

Ringside Arena3 screens
HYDROX4 screens

Verdict

The call

The clearest difference is in-app purchases: Ringside Arena at none against HYDROX's 4. HYDROX's advantage is update cadence (weekly vs every 3 months). On price, ads, device support 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. Ringside Arena asks for nothing beyond the download.

UpkeepUpdate frequency

Ringside Arena ships an update every 3 months, HYDROX weekly. The most recent releases landed on October 23, 2026 and October 24, 2026 respectively.

Scorecard2 real differences · 8 level
Ringside Arena versus HYDROX: the parameters behind the verdict, then further details
ParameterRingside ArenaHYDROX
PriceFreeFree
Rating—5.0 (4 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings—4 — better
Update frequencyEvery 3 monthsWeekly — better
AdsNoNo
In-app purchasesNo — betterYes
Monetization—Freemium
DevicesiPhone, iPadiPhone, iPad, Apple Watch — better
Requires iOS16.0 — better17.0
Further details — not scored
Size195 MB8 MB
Age rating4+4+
DeveloperRingside ArenaBALL VENTURES LLC

In-app purchases

None

Ringside Arena

No 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

Questions

Is Ringside Arena free?
Ringside Arena is free to download, with no in-app purchases.
Is HYDROX free?
HYDROX is free to download, with in-app purchases available.
Do Ringside Arena or HYDROX have ads?
Neither Ringside Arena nor HYDROX shows ads.
Which is updated more often, Ringside Arena or HYDROX?
Ringside Arena ships an update every 3 months, and HYDROX weekly. Most recently, Ringside Arena was updated on October 23, 2026 and HYDROX on October 24, 2026.

Other comparisons