# Cal.com vs ZerZer

The clearest difference is in-app purchases: Cal.com at none against ZerZer's 2. On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. ZerZer sells 2 in-app purchases, starting at $3.99 per month. Cal.com asks for nothing beyond the download.

## The numbers

| Metric | Cal.com | ZerZer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.9 (220 ratings)](https://appshunter.io/ios/app/calcom/id6757157271/reviews)** | — |
| Number of ratings | **220** | — |
| Positive reviews | 54.5% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 4 weeks | — |
| Monetization | Free | — |
| Size | 44 MB | 55 MB |
| Requires iOS | **15.1** | 16.4 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Cal.com, Inc.](https://appshunter.io/developer/1864941554) | [Mohammad Esmaell Barbatl](https://appshunter.io/developer/1896694414) |

## What reviewers say

### Cal.com

[App page](https://appshunter.io/ios/app/calcom/id6757157271)

This app simplifies scheduling meetings on the go. Book, reschedule, or cancel appointments with a few taps, syncing directly with your calendar. Receive smart notifications and integrate with your existing tools for seamless collaboration.

**Highlights:** Instant meeting booking, rescheduling, and cancellation, Real-time calendar synchronization, Smart push notifications for events, Integration with email and video tools, Mobile-friendly scheduling

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

**In-app purchases:** none


### ZerZer

[App page](https://appshunter.io/ios/app/zerzer-private-word-counter/id6780979605)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ZerZer Pro Monthly | $3.99 | per month |
| ZerZer Pro Yearly | $29.99 | per year |


## Frequently asked questions

### Is Cal.com free?

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

### Is ZerZer free?

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

### Do Cal.com or ZerZer have ads?

Neither Cal.com nor ZerZer 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.*