# E3BlueLight vs Smart O

The clearest difference is iOS requirement: Smart O at 7.0 against E3BlueLight'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 | E3BlueLight | Smart O |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 weeks | — |
| Size | 9 MB | 25 MB |
| Requires iOS | 13.0 | **7.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [北京易方通达科技有限公司](https://appshunter.io/developer/889658425) | [Opple Lighting Co., Ltd.](https://appshunter.io/developer/955299786) |

## What reviewers say

### E3BlueLight

[App page](https://appshunter.io/ios/app/e3bluelight/id1039337297)

**Features:** macOS Compatibility

**In-app purchases:** none


### Smart O

[App page](https://appshunter.io/ios/app/smart-o/id1133843579)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is E3BlueLight free?

E3BlueLight is free to download, with no in-app purchases.

### Is Smart O free?

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

### Do E3BlueLight or Smart O have ads?

Neither E3BlueLight nor Smart O 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.*