# 3D助眠 vs Sound Speaker

The clearest difference is ads: 3D助眠 at none against Sound Speaker's shown. On price, in-app purchases, device support and iOS requirement there is nothing between them.

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

## The numbers

| Metric | 3D助眠 | Sound Speaker |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 5 weeks | — |
| Size | 199 MB | 27 MB |
| Requires iOS | **12.4** | 13.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Shenzhen Lititong Technology Co., Ltd.](https://appshunter.io/developer/1511890959) | [标勇 张](https://appshunter.io/developer/1644652564) |

## What reviewers say

### 3D助眠

[App page](https://appshunter.io/ios/app/3d/id6444254419)

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

**In-app purchases:** none


### Sound Speaker

[App page](https://appshunter.io/ios/app/sound-speaker/id6446796336)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is 3D助眠 free?

3D助眠 is free to download, with no in-app purchases.

### Is Sound Speaker free?

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

### Do 3D助眠 or Sound Speaker have ads?

Sound Speaker shows ads; 3D助眠 does not.

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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.*