# Hydratica. vs Moonrain

The clearest difference is update cadence: Hydratica. at every 10 days against Moonrain's every 2 months. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Hydratica. ships an update every 10 days, Moonrain every 2 months. Both last shipped on October 16, 2026.

## The numbers

| Metric | Hydratica. | Moonrain |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (3 ratings)](https://appshunter.io/ios/app/moonrain-sleep-sounds/id6789770084/reviews)** |
| Number of ratings | — | **3** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 10 days** | Every 2 months |
| Monetization | — | Free |
| Size | 65 MB | 130 MB |
| Requires iOS | 17.0 | 17.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [The Perfect Brands Stockholm AB](https://appshunter.io/developer/1888481973) | [Gurwinder Singh](https://appshunter.io/developer/6785280741) |

## What reviewers say

### Hydratica.

[App page](https://appshunter.io/ios/app/hydratica/id6775402035)

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

**In-app purchases:** none


### Moonrain

[App page](https://appshunter.io/ios/app/moonrain-sleep-sounds/id6789770084)

Create personalized soundscapes for sleep, relaxation, or focus. Mix up to four ambient sounds with adjustable volumes, save your favorite combinations, and use the sleep timer for a gentle fade-out. Enjoy offline playback and lock screen controls.

**Highlights:** Offline sound mixing, Mix up to four sounds, Adjustable volumes, Save favorite combinations, Sleep timer with fade-out, Lock screen controls and widget, 24 ambient sounds

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

**In-app purchases:** none


## Frequently asked questions

### Is Hydratica. free?

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

### Is Moonrain free?

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

### Do Hydratica. or Moonrain have ads?

Neither Hydratica. nor Moonrain shows ads.

### Which is updated more often, Hydratica. or Moonrain?

Hydratica. ships an update every 10 days, and Moonrain every 2 months. Most recently, Hydratica. was updated on October 16, 2026 and Moonrain on October 16, 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.*