# EstBook vs PocOS

The clearest difference is in-app purchases: PocOS at none against EstBook's 2. PocOS also leads on update cadence (every 4 days vs monthly). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. EstBook sells 2 in-app purchases, starting at $2.49 per month. PocOS asks for nothing beyond the download.

EstBook ships an update monthly, PocOS every 4 days. The most recent releases landed on October 18, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | EstBook | PocOS |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (5 ratings)](https://appshunter.io/ios/app/pocos/id6808118172/reviews)** |
| Number of ratings | — | **5** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Monthly | **Every 4 days** |
| Monetization | — | Free |
| Size | 62 MB | 66 MB |
| Requires iOS | 16.4 | 16.4 |
| Devices | iPhone | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [TARS BOOKS APPS LLC](https://appshunter.io/developer/6794718895) | [Giorgi Lomidze](https://appshunter.io/developer/6808118174) |

## What reviewers say

### EstBook

[App page](https://appshunter.io/ios/app/estbook/id6794718893)

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| EstBook Premium Monthly | $2.49 | per month |
| EstBook Premium Annual | $24.99 | per year |


### PocOS

[App page](https://appshunter.io/ios/app/pocos/id6808118172)

Manage your salon or service business efficiently on the go. View your daily schedule, client history, and messages all in one place. Clients can easily find and book services.

**Highlights:** Daily appointment overview, On-the-go calendar management, Client history and contact details, Unified business messaging inbox, Team member visibility, Business performance insights

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

**In-app purchases:** none


## Frequently asked questions

### Is EstBook free?

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

### Is PocOS free?

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

### Do EstBook or PocOS have ads?

Neither EstBook nor PocOS shows ads.

### Which is updated more often, EstBook or PocOS?

EstBook ships an update monthly, and PocOS every 4 days. Most recently, EstBook was updated on October 18, 2026 and PocOS on October 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.*