# Part5 Pro vs Fill Eng

The clearest difference is in-app purchases: Part5 Pro at none against Fill Eng's 1. Fill Eng's advantage is iOS requirement (16.4 vs 18.5). On price, ads and device support there is nothing between them.

Both are free to download. Fill Eng sells 1 one-off in-app purchase. Part5 Pro asks for nothing beyond the download.

## The numbers

| Metric | Part5 Pro | Fill Eng |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 5 days | — |
| Size | 43 MB | 46 MB |
| Requires iOS | 18.5 | **16.4** |
| Devices | iPhone | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Shunsuke Asai](https://appshunter.io/developer/1826470278) | [Tetsuya Sukeda](https://appshunter.io/developer/6787081789) |

## What reviewers say

### Part5 Pro

[App page](https://appshunter.io/ios/app/part5-pro/id6748593708)

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

**In-app purchases:** none


### Fill Eng

[App page](https://appshunter.io/ios/app/fill-eng-the-blank/id6787081786)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Auf Premium upgraden | $4.99 | one-time |


## Frequently asked questions

### Is Part5 Pro free?

Part5 Pro is free to download, with no in-app purchases.

### Is Fill Eng free?

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

### Do Part5 Pro or Fill Eng have ads?

Neither Part5 Pro nor Fill Eng 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.*