# CalCheck vs Prism Ping

The clearest difference is iOS requirement: CalCheck at 15.6 against Prism Ping's 17.0. 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 | CalCheck | Prism Ping |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Size | 4 MB | 3 MB |
| Requires iOS | **15.6** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Morten Punnerud](https://appshunter.io/developer/969844397) | [George Field](https://appshunter.io/developer/1828914617) |

## What reviewers say

### CalCheck

[App page](https://appshunter.io/ios/app/calcheck-calendar-sync-check/id6751807561)

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

**In-app purchases:** none


### Prism Ping

[App page](https://appshunter.io/ios/app/prism-ping/id6802632166)

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

**In-app purchases:** none


## Frequently asked questions

### Is CalCheck free?

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

### Is Prism Ping free?

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

### Do CalCheck or Prism Ping have ads?

Neither CalCheck nor Prism Ping 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.*