# ERKO vs Client Book

ERKO and Client Book are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

## The numbers

| Metric | ERKO | Client Book |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | — | Every 3 months |
| Size | 45 MB | 37 MB |
| Requires iOS | **15.0** | 15.1 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Rinat Sultanov](https://appshunter.io/developer/1454203768) | [Andrei Kaptsiuh](https://appshunter.io/developer/1798648245) |

## What reviewers say

### ERKO

[App page](https://appshunter.io/ios/app/erko/id6476834981)

**Features:** macOS Compatibility

**In-app purchases:** none


### Client Book

[App page](https://appshunter.io/ios/app/client-book/id6742812425)

**In-app purchases:** none


## Frequently asked questions

### Is ERKO free?

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

### Is Client Book free?

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

### Do ERKO or Client Book have ads?

Neither ERKO nor Client Book shows ads.

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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.*