# Ringside Arena vs HYDROX

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.

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.

## The numbers

| Metric | Ringside Arena | HYDROX |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (4 ratings)](https://appshunter.io/ios/app/hydrox-training-hydration/id6758163738/reviews)** |
| Number of ratings | — | **4** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Weekly** |
| Monetization | — | Freemium |
| Size | 195 MB | 8 MB |
| Requires iOS | **16.0** | 17.0 |
| Devices | iPhone, iPad | **iPhone, iPad, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [Ringside Arena](https://appshunter.io/developer/1812926996) | [BALL VENTURES LLC](https://appshunter.io/developer/1871278776) |

## What reviewers say

### Ringside Arena

[App page](https://appshunter.io/ios/app/ringside-arena/id6745561199)

**Features:** macOS Compatibility, Apple Wallet, Vision Pro support

**In-app purchases:** none


### HYDROX

[App page](https://appshunter.io/ios/app/hydrox-training-hydration/id6758163738)

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:** macOS Compatibility

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| HYDROX Pro | $0.99 | per 7 days |
| HYDROX Pro | $24.99 | per year |
| HYROX Americas DC Race Pack | $14.99 | one-time |
| HYROX Miami Race Pack | $14.99 | one-time |


## Frequently asked 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.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*