# Phasequilib vs Reading Fluency

The clearest difference is in-app purchases: Phasequilib at none against Reading Fluency's 4. Phasequilib also leads on iOS requirement (9.0 vs 17.6). On price, ads and device support there is nothing between them.

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

## The numbers

| Metric | Phasequilib | Reading Fluency |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | — | Every 5 days |
| Size | 78 MB | 28 MB |
| Requires iOS | **9.0** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Natalia Shelyago](https://appshunter.io/developer/1618907003) | [Mehmet Demir](https://appshunter.io/developer/1522952577) |

## What reviewers say

### Phasequilib

[App page](https://appshunter.io/ios/app/phasequilib/id1541035801)

**Features:** macOS Compatibility

**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 Phasequilib free?

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

### Is Reading Fluency free?

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

### Do Phasequilib or Reading Fluency have ads?

Neither Phasequilib nor Reading Fluency 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.*