# 4º ano RA vs Reading Fluency

The clearest difference is in-app purchases: 4º ano RA at none against Reading Fluency's 4. 4º ano RA also leads on iOS requirement (11.0 vs 17.6). Reading Fluency's advantage is device support. On price there is nothing between them.

Both are free to download. Reading Fluency sells 4 in-app purchases, starting at $2.99 per 7 days. 4º ano RA asks for nothing beyond the download.

## The numbers

| Metric | 4º ano RA | Reading Fluency |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | — | No |
| Update frequency | — | Every 5 days |
| Size | 619 MB | 28 MB |
| Requires iOS | **11.0** | 17.6 |
| Devices | — | **iPhone, iPad** |
| Age rating | 17+ | 4+ |
| Developer | [LION MIDIA E ENTRETENIMENTO EIRELI](https://appshunter.io/developer/1464680007) | [Mehmet Demir](https://appshunter.io/developer/1522952577) |

## What reviewers say

### 4º ano RA

[App page](https://appshunter.io/ios/app/4-ano-ra/id6444779497)

**In-app purchases:** none


### Reading Fluency

[App page](https://appshunter.io/ios/app/reading-fluency-kidsread/id6770613013)

**Features:** macOS Compatibility

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| KidsRead Weekly | $2.99 | per 7 days |
| KidsRead Monthly | $6.99 | per month |
| KidsRead Annual | $24.99 | per year |
| KidsRead Lifetime Premium | $34.99 | one-time |


## Frequently asked questions

### Is 4º ano RA free?

4º ano RA is free to download, with no in-app purchases.

### Is Reading Fluency free?

Reading Fluency is free to download, with in-app purchases available.

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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.*