# Syntropy vs Watch Hydration

The clearest difference is in-app purchases: Watch Hydration at none against Syntropy's 4. Syntropy's advantage is iOS requirement (13.0 vs 17.6). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Syntropy sells 4 in-app purchases, starting at $2.99 per month. Watch Hydration asks for nothing beyond the download.

Syntropy ships an update every 2 weeks, Watch Hydration every 3 weeks. The most recent releases landed on October 8, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | Syntropy | Watch Hydration |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.7 (3 ratings)](https://appshunter.io/ios/app/syntropy/id1583227152/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 95.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Every 3 weeks |
| Monetization | Free with in-app purchases | — |
| Size | 76 MB | 2 MB |
| Requires iOS | **13.0** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [The Syntropy Partnership Ltd](https://appshunter.io/developer/1583227154) | [Thomas Chatting](https://appshunter.io/developer/1811425476) |

## What reviewers say

### Syntropy

[App page](https://appshunter.io/ios/app/syntropy/id1583227152)

Experience a unique approach to wellbeing with immersive video art and calming music designed for relaxation and stress relief. Explore curated galleries for breathwork, meditation, and mood enhancement. Enjoy offline access and discover featured artists.

**Highlights:** Immersive video art and music, Relaxation and de-stressing journeys, Breathwork cycles (8, 10, 12 sec), Guided meditation and focused attention, Mood elevation visuals, Offline video playback, Artist profiles and interviews

**Features:** macOS Compatibility

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Subscription | $2.99 | per month |
| Monthly Subscription | $3.49 | per month |
| Annual Subscription | $30.99 | per year |
| Annual Subscription | $33.99 | per year |


### Watch Hydration

[App page](https://appshunter.io/ios/app/watch-hydration/id6745416167)

**Features:** Apple Watch app

**In-app purchases:** none


## Frequently asked questions

### Is Syntropy free?

Syntropy is free to download, with in-app purchases available.

### Is Watch Hydration free?

Watch Hydration is free to download, with no in-app purchases.

### Do Syntropy or Watch Hydration have ads?

Neither Syntropy nor Watch Hydration shows ads.

### Which is updated more often, Syntropy or Watch Hydration?

Syntropy ships an update every 2 weeks, and Watch Hydration every 3 weeks. Most recently, Syntropy was updated on October 8, 2026 and Watch Hydration on October 7, 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.*