# Square Appointments vs CaptainBook

The clearest difference is iOS requirement: CaptainBook at 15.5 against Square Appointments's 17.1. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Square Appointments ships an update every 6 days, CaptainBook every 9 days. The most recent releases landed on October 20, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | Square Appointments | CaptainBook |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.9 (195K ratings)](https://appshunter.io/ios/app/square-appointments-scheduler/id1023050786/reviews)** | — |
| Number of ratings | **195K** | — |
| Positive reviews | 68.8% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 6 days** | Every 9 days |
| Monetization | Freemium | — |
| Size | 801 MB | 43 MB |
| Requires iOS | 17.1 | **15.5** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 12+ | 4+ |
| Developer | [Block, Inc.](https://appshunter.io/developer/335393791) | [Captain Book PC](https://appshunter.io/developer/1677294230) |

## What reviewers say

### Square Appointments

[App page](https://appshunter.io/ios/app/square-appointments-scheduler/id1023050786)

Manage your business with an all-in-one solution for booking, scheduling, and payments. Offer 24/7 online booking, send automated reminders, and process payments securely. Track client details and manage your team's calendars and reports.

**Highlights:** 24/7 online booking, Automated appointment reminders, Secure payment processing, Client management, Team calendar management, Point of sale system

**Features:** Apple Wallet

**In-app purchases:** none

**What reviewers like**

- 🚀 Easy to use
- 📅 Helpful appointment reminders
- 💳 Integrated payment processing
- 👍 User-friendly interface
- 🕰️ Recurring appointments

**What reviewers complain about**

- 🐛 Bugs and glitches
- 🤔 Confusing navigation
- 🔒 Lack of security features
- 💰 Expensive paid plans
- 📞 Poor customer support

**Reported bugs**

- Appointments disappearing or not syncing
- Issues with changing or rescheduling appointments
- Unreliable notification system
- Incorrect time/date display
- Trouble connecting with Square payment system

**Requested features**

- Ability to customize text/email reminders
- Option to block time slots for personal use
- Integration with more calendar apps
- Easier way to manage multiple locations
- Feature to collect deposits or prepayments


### CaptainBook

[App page](https://appshunter.io/ios/app/captainbook/id6446312348)

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

**In-app purchases:** none


## Frequently asked questions

### Is Square Appointments free?

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

### Is CaptainBook free?

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

### Do Square Appointments or CaptainBook have ads?

Neither Square Appointments nor CaptainBook shows ads.

### Which is updated more often, Square Appointments or CaptainBook?

Square Appointments ships an update every 6 days, and CaptainBook every 9 days. Most recently, Square Appointments was updated on October 20, 2026 and CaptainBook on October 6, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*