# UMSmartSound vs RF Live system

The clearest difference is iOS requirement: RF Live system at 11.0 against UMSmartSound's 13.0. 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.

## The numbers

| Metric | UMSmartSound | RF Live system |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | — |
| Size | 11 MB | 5 MB |
| Requires iOS | 13.0 | **11.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Zero Plus Technology Co.,Ltd.](https://appshunter.io/developer/1536723252) | [SEIKAKU](https://appshunter.io/developer/860317297) |

## What reviewers say

### UMSmartSound

[App page](https://appshunter.io/ios/app/umsmartsound/id1658261071)

**Features:** macOS Compatibility

**In-app purchases:** none


### RF Live system

[App page](https://appshunter.io/ios/app/rf-live-system/id6744908243)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is UMSmartSound free?

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

### Is RF Live system free?

RF Live system is free to download, with no in-app purchases.

### Do UMSmartSound or RF Live system have ads?

Neither UMSmartSound nor RF Live system shows ads.

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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.*