# Echa Authenticator vs AromaOS

The clearest difference is iOS requirement: Echa Authenticator at 8.0 against AromaOS's 12.0. 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 | Echa Authenticator | AromaOS |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/aromaos/id6758146390/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | — | Every 2 months |
| Monetization | — | Free |
| Size | 142 MB | 39 MB |
| Requires iOS | **8.0** | 12.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Avenla Oy](https://appshunter.io/developer/1087284482) | [文振 苏](https://appshunter.io/developer/1797212850) |

## What reviewers say

### Echa Authenticator

[App page](https://appshunter.io/ios/app/echa-authenticator/id1463501676)

**Features:** macOS Compatibility

**In-app purchases:** none


### AromaOS

[App page](https://appshunter.io/ios/app/aromaos/id6758146390)

Control your smart aroma diffuser remotely via Bluetooth or over the internet. Set regular working intervals and customize parameters for a personalized scent experience.

**Highlights:** Bluetooth control, Remote control, Scheduled operation, Parameter customization, Smart diffuser management

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

**In-app purchases:** none


## Frequently asked questions

### Is Echa Authenticator free?

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

### Is AromaOS free?

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

### Do Echa Authenticator or AromaOS have ads?

Neither Echa Authenticator nor AromaOS 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.*