# A4排版助手 vs RetroCalendar

The clearest difference is device support: RetroCalendar at 3 against A4排版助手's 1. On price, ads, in-app purchases and iOS requirement 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 | A4排版助手 | RetroCalendar |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Size | 1 MB | 1 MB |
| Requires iOS | 17.0 | 17.0 |
| Devices | iPhone | **iPhone, iPad, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [炳 郑](https://appshunter.io/developer/6775876628) | [谐 和](https://appshunter.io/developer/6789380709) |

## What reviewers say

### A4排版助手

[App page](https://appshunter.io/ios/app/a4/id6783326893)

**In-app purchases:** none


### RetroCalendar

[App page](https://appshunter.io/ios/app/retrocalendar/id6808328583)

**In-app purchases:** none


## Frequently asked questions

### Is A4排版助手 free?

A4排版助手 is free to download, with no in-app purchases.

### Is RetroCalendar free?

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

### Do A4排版助手 or RetroCalendar have ads?

Neither A4排版助手 nor RetroCalendar 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.*