# iobook vs fix flow

The clearest difference is in-app purchases: fix flow at none against iobook's 2. fix flow also leads on iOS requirement (13.0 vs 18.0). On price, ads and device support there is nothing between them.

Both are free to download. iobook sells 2 in-app purchases, starting at $1.99 per month. fix flow asks for nothing beyond the download.

## The numbers

| Metric | iobook | fix flow |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 weeks | — |
| Size | 6 MB | 35 MB |
| Requires iOS | 18.0 | **13.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Joonhee Cho](https://appshunter.io/developer/1124471697) | [hyeonu lee](https://appshunter.io/developer/1858238879) |

## What reviewers say

### iobook

[App page](https://appshunter.io/ios/app/iobook/id6742841375)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Basic (Monthly) | $1.99 | per month |
| Basic (Yearly) | $19.99 | per year |


### fix flow

[App page](https://appshunter.io/ios/app/fix-flow/id6759238420)

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

**In-app purchases:** none


## Frequently asked questions

### Is iobook free?

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

### Is fix flow free?

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

### Do iobook or fix flow have ads?

Neither iobook nor fix flow 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.*