Ringside Arena vs HYDROX
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Ringside Arena
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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 !
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.
- Personalized hydration targets
- Training intensity adjustment
- One-tap logging
- Smart reminders
- HealthKit sync
- Apple Watch app
- Widgets for home and lock screen
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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
Verdict
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
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.
Ringside Arena ships an update every 3 months, HYDROX weekly. The most recent releases landed on October 23, 2026 and October 24, 2026 respectively.
| Parameter | Ringside Arena | HYDROX |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (4 ratings) — better |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | — | 4 — better |
| Update frequency | Every 3 months | Weekly — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | — | Freemium |
| Devices | iPhone, iPad | iPhone, iPad, Apple Watch — better |
| Requires iOS | 16.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 195 MB | 8 MB |
| Age rating | 4+ | 4+ |
| Developer | Ringside Arena | BALL VENTURES LLC |
In-app purchases
Ringside Arena
No in-app purchases
HYDROX
- HYDROX Pro7 Days trial$0.997 Days
- HYDROX Pro7 Days trial$24.991 Year
- HYROX Americas DC Race Pack$14.99
- HYROX Miami Race Pack$14.99









