# EchoSense vs Puffend

The clearest difference is iOS requirement: Puffend at 13.0 against EchoSense's 15.6. 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 | EchoSense | Puffend |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 months | — |
| Size | 18 MB | 70 MB |
| Requires iOS | 15.6 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [K12 Ventures Foundation, Inc.](https://appshunter.io/developer/1665403820) | [Writecream](https://appshunter.io/developer/1633791590) |

## What reviewers say

### EchoSense

[App page](https://appshunter.io/ios/app/echosense/id6742468000)

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

**In-app purchases:** none


### Puffend

[App page](https://appshunter.io/ios/app/puffend/id6752134313)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is EchoSense free?

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

### Is Puffend free?

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

### Do EchoSense or Puffend have ads?

Neither EchoSense nor Puffend 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.*