# Relio vs Praevision

The clearest difference is device support: Relio at 3 against Praevision's —. Relio also leads on iOS requirement (9.0 vs 13.0). On price and in-app purchases 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 | Relio | Praevision |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | — |
| Update frequency | Monthly | — |
| Size | 58 MB | 83 MB |
| Requires iOS | **9.0** | 13.0 |
| Devices | **iPhone, iPad, iPod** | — |
| Age rating | 4+ | 17+ |
| Developer | [APPgrade34 S.r.l.s.](https://appshunter.io/developer/1645351406) | [Praevision Ltd](https://appshunter.io/developer/1713582065) |

## What reviewers say

### Relio

[App page](https://appshunter.io/ios/app/relio/id1369184479)

**In-app purchases:** none


### Praevision

[App page](https://appshunter.io/ios/app/praevision-dentist-app/id6470384329)

**In-app purchases:** none


## Frequently asked questions

### Is Relio free?

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

### Is Praevision free?

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

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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.*