# Sleep Game vs Hydro Dots

The clearest difference is update cadence: Hydro Dots at daily against Sleep Game's every 5 weeks. Sleep Game's advantage is iOS requirement (16.0 vs 26.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Sleep Game sells 2 in-app purchases, starting at $2.99 per month and Hydro Dots sells 4 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

Sleep Game ships an update every 5 weeks, Hydro Dots daily. The most recent releases landed on November 3, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Sleep Game | Hydro Dots |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 66.7% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 5 weeks | **Daily** |
| Monetization | Free with in-app purchases | — |
| Size | 123 MB | 43 MB |
| Requires iOS | **16.0** | 26.0 |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Hiroaki Abe](https://appshunter.io/developer/1554815876) | [Kengo Tate](https://appshunter.io/developer/1458012620) |

## What reviewers say

### Sleep Game

[App page](https://appshunter.io/ios/app/sleep-game-good-sleeperz/id1585167521)

This app gamifies sleep improvement by tracking your rest and rewarding you with adorable sheep adventures. It offers digital detox features, natural sleep sounds, and detailed analysis to help you build healthier sleep habits.

**Highlights:** Easy sleep tracking, Digital detox "Good Night Shield", Natural sleep sounds, Social sheep collection, Detailed sleep analysis, Nap mode

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium(monthly) | $2.99 | per month |
| Premium(Annual) | $29.99 | per year |


### Hydro Dots

[App page](https://appshunter.io/ios/app/hydro-dots/id6794577673)

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| A drop | $0.99 | one-time |
| A glass | $2.99 | one-time |
| A bottle | $5.99 | one-time |
| Pro — Founding Member | $5.99 | one-time |


## Frequently asked questions

### Is Sleep Game free?

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

### Is Hydro Dots free?

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

### Do Sleep Game or Hydro Dots have ads?

Both Sleep Game and Hydro Dots show ads.

### Which is updated more often, Sleep Game or Hydro Dots?

Sleep Game ships an update every 5 weeks, and Hydro Dots daily. Most recently, Sleep Game was updated on November 3, 2026 and Hydro Dots on October 31, 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.*