# WhenWorks vs Appointment Booking System

The clearest difference is rating: Appointment Booking System at 4.5 against WhenWorks's 4.0. Appointment Booking System also leads on review sentiment (100% vs 73%). WhenWorks's advantage is update cadence (every 2 weeks vs monthly). On price, ratings volume, ads and in-app purchases there is nothing between them.

Both are free to download. WhenWorks sells 2 in-app purchases, starting at $4.99 per month and Appointment Booking System sells 2 in-app purchases, starting at $9.99 per month. Whichever you choose, the download price is not the number that matters.

Appointment Booking System holds the better App Store score, 4.5 against 4.0. Both are backed by a comparable volume of ratings — 33 and 22 respectively. Written reviews point the same way: 73% of WhenWorks's written reviews are positive against 100% of Appointment Booking System's.

WhenWorks ships an update every 2 weeks, Appointment Booking System monthly. Both last shipped on September 17, 2026.

## The numbers

| Metric | WhenWorks | Appointment Booking System |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.0 (33 ratings)](https://appshunter.io/ios/app/whenworks/id1356360346/reviews) | **[4.5 (22 ratings)](https://appshunter.io/ios/app/appointment-booking-system/id1511163266/reviews)** |
| Number of ratings | **33** | 22 |
| Positive reviews | 73.1% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Monthly |
| Monetization | Free with in-app purchases | Freemium |
| Size | 15 MB | 71 MB |
| Requires iOS | 12.0 | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Snailed It Development Ltd](https://appshunter.io/developer/1493284299) | [Dominique Andr Gunia](https://appshunter.io/developer/295407468) |

## What reviewers say

### WhenWorks

[App page](https://appshunter.io/ios/app/whenworks/id1356360346)

This app simplifies meeting scheduling by allowing clients and colleagues to book appointments online based on your defined availability. It integrates with your calendar to automatically update your schedule and send confirmations.

**Highlights:** Online scheduling page, Customizable availability rules, Calendar integration (iCloud, Google, Office 365, Outlook), Automatic confirmations, Unlimited event types (Pro), Unlimited appointments (Pro)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Subscription | $4.99 | per month |
| Annual Subscription | $49.99 | per year |


### Appointment Booking System

[App page](https://appshunter.io/ios/app/appointment-booking-system/id1511163266)

Quickly create a customer booking website in minutes. Customers can view available slots and book appointments online. Receive instant notifications for new bookings.

**Highlights:** Quick setup, Customer booking website, Real-time notifications, Unlimited bookings (subscription), Free tier available

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly subscription | $9.99 | per month |
| Yearly subscription | $99.99 | per year |


## Frequently asked questions

### Is WhenWorks free?

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

### Is Appointment Booking System free?

Appointment Booking System is free to download, with in-app purchases available.

### Which has better reviews, WhenWorks or Appointment Booking System?

Appointment Booking System is rated higher. WhenWorks averages 4.0 out of 5 from 33 ratings, while Appointment Booking System averages 4.5 from 22 ratings.

### Do WhenWorks or Appointment Booking System have ads?

Neither WhenWorks nor Appointment Booking System shows ads.

### Which is updated more often, WhenWorks or Appointment Booking System?

WhenWorks ships an update every 2 weeks, and Appointment Booking System monthly. Most recently, WhenWorks was updated on September 17, 2026 and Appointment Booking System on September 17, 2026.

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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.*