# BookTime Appointment Manager vs OncallManager

The clearest difference is in-app purchases: OncallManager at none against BookTime Appointment Manager's 5. OncallManager also leads on update cadence (every 5 days vs every 2 weeks). BookTime Appointment Manager's advantage is device support (4 vs 2) and iOS requirement (15.0 vs 17.0). On price and ads there is nothing between them.

Both are free to download. BookTime Appointment Manager sells 5 in-app purchases, starting at $19.99 per month. OncallManager asks for nothing beyond the download.

BookTime Appointment Manager ships an update every 2 weeks, OncallManager every 5 days. The most recent releases landed on August 24, 2026 and September 24, 2026 respectively.

## The numbers

| Metric | BookTime Appointment Manager | OncallManager |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.4 (11 ratings)](https://appshunter.io/ios/app/booktime-appointment-manager/id1193181380/reviews)** | — |
| Number of ratings | **11** | — |
| Positive reviews | 42.9% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Every 5 days** |
| Monetization | Free with in-app purchases | — |
| Size | 22 MB | 16 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | **iPhone, iPad, iPod, Apple Watch** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [MarkMyDiary Technologies Private Limited](https://appshunter.io/developer/1154479925) | [Hiroshi Matsueda](https://appshunter.io/developer/1656062331) |

## What reviewers say

### BookTime Appointment Manager

[App page](https://appshunter.io/ios/app/booktime-appointment-manager/id1193181380)

Streamline your business by managing clients and appointments on the go. Automate bookings, send reminders, and track client interactions with this comprehensive tool. Offers self-service booking options for customers and detailed analytics for business insights.

**Highlights:** Self-service bookings, Business management and scheduling, Client management, SMS and reminders, Invoice templates, Sync with calendar, Analytics

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1 MONTH PACK | $19.99 | per month |
| 1 YEAR OFFER PACK | $99.99 | per year |
| 1 YEAR PACK | $149.99 | per year |
| 1 YEAR PACK - 1 MEMBER | $299.99 | per year |
| 1 YEAR PACK - 3 MEMBERS | $399.99 | per year |


### OncallManager

[App page](https://appshunter.io/ios/app/oncallmanager/id6739290146)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is BookTime Appointment Manager free?

BookTime Appointment Manager is free to download, with in-app purchases available.

### Is OncallManager free?

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

### Do BookTime Appointment Manager or OncallManager have ads?

Neither BookTime Appointment Manager nor OncallManager shows ads.

### Which is updated more often, BookTime Appointment Manager or OncallManager?

BookTime Appointment Manager ships an update every 2 weeks, and OncallManager every 5 days. Most recently, BookTime Appointment Manager was updated on August 24, 2026 and OncallManager on September 24, 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.*