# NNPHI vs MetaECHO 2023

The clearest difference is iOS requirement: MetaECHO 2023 at 14.1 against NNPHI's 17.0. 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 | NNPHI | MetaECHO 2023 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 weeks | — |
| Size | 64 MB | 70 MB |
| Requires iOS | 17.0 | **14.1** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [National Network of Public Health Institutes](https://appshunter.io/developer/1357188009) | [Project ECHO](https://appshunter.io/developer/1689352367) |

## What reviewers say

### NNPHI

[App page](https://appshunter.io/ios/app/nnphi/id1209175330)

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

**In-app purchases:** none


### MetaECHO 2023

[App page](https://appshunter.io/ios/app/metaecho-2023/id6453168104)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is NNPHI free?

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

### Is MetaECHO 2023 free?

MetaECHO 2023 is free to download, with no in-app purchases.

### Do NNPHI or MetaECHO 2023 have ads?

Neither NNPHI nor MetaECHO 2023 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.*