# Pocket Client Book vs ServiceKoala

The clearest difference is in-app purchases: ServiceKoala at none against Pocket Client Book's 2. ServiceKoala also leads on iOS requirement (15.1 vs 17.6). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Pocket Client Book sells 2 in-app purchases, starting at $4.99 per month. ServiceKoala asks for nothing beyond the download.

Pocket Client Book ships an update every 2 weeks, ServiceKoala fortnightly. The most recent releases landed on October 14, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Pocket Client Book | ServiceKoala |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Fortnightly |
| Size | 15 MB | 56 MB |
| Requires iOS | 17.6 | **15.1** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Artem Danylov](https://appshunter.io/developer/6778438593) | [Tomasz Nastaly](https://appshunter.io/developer/6781062946) |

## What reviewers say

### Pocket Client Book

[App page](https://appshunter.io/ios/app/pocket-client-book-diary/id6780065737)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pocket Client Book PRO Monthly | $4.99 | per month |
| Pocket Client Book PRO Lifetime | $39.99 | one-time |


### ServiceKoala

[App page](https://appshunter.io/ios/app/servicekoala/id6813520352)

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

**In-app purchases:** none


## Frequently asked questions

### Is Pocket Client Book free?

Pocket Client Book is free to download, with in-app purchases available.

### Is ServiceKoala free?

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

### Do Pocket Client Book or ServiceKoala have ads?

Neither Pocket Client Book nor ServiceKoala shows ads.

### Which is updated more often, Pocket Client Book or ServiceKoala?

Pocket Client Book ships an update every 2 weeks, and ServiceKoala fortnightly. Most recently, Pocket Client Book was updated on October 14, 2026 and ServiceKoala 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.*