# COPROG Calendar vs Calendar Time Sync

The clearest difference is iOS requirement: COPROG Calendar at 15.0 against Calendar Time Sync's 18.2. On price, ads, in-app purchases and device support 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 | COPROG Calendar | Calendar Time Sync |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Fortnightly | — |
| Size | 63 MB | 2 MB |
| Requires iOS | **15.0** | 18.2 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [COPROG e.K.](https://appshunter.io/developer/1356957127) | [Cornel Meza](https://appshunter.io/developer/1826438813) |

## What reviewers say

### COPROG Calendar

[App page](https://appshunter.io/ios/app/coprog-calendar/id6670216681)

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

**In-app purchases:** none


### Calendar Time Sync

[App page](https://appshunter.io/ios/app/calendar-time-sync/id6748588734)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is COPROG Calendar free?

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

### Is Calendar Time Sync free?

Calendar Time Sync is free to download, with no in-app purchases.

### Do COPROG Calendar or Calendar Time Sync have ads?

Neither COPROG Calendar nor Calendar Time Sync 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.*