# Client Book vs Запишу

The clearest difference is ads: Client Book at none against Запишу's shown. Запишу's advantage is update cadence (every 3 days vs every 3 months). On price, in-app purchases, device support and iOS requirement there is nothing between them.

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

Client Book ships an update every 3 months, Запишу every 3 days. The most recent releases landed on October 11, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | Client Book | Запишу |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/id6775794807/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 3 months | **Every 3 days** |
| Monetization | — | Ad-supported |
| Size | 37 MB | 39 MB |
| Requires iOS | 15.1 | **15.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Andrei Kaptsiuh](https://appshunter.io/developer/1798648245) | [Aleksei Krasnov](https://appshunter.io/developer/1837999439) |

## What reviewers say

### Client Book

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

**In-app purchases:** none


### Запишу

[App page](https://appshunter.io/ios/app/id6775794807)

This app simplifies client scheduling for independent professionals and service providers. It offers both manual booking and 24/7 online appointment setting via popular messaging platforms, reducing administrative tasks and missed appointments.

**Highlights:** Manual and online client booking, 24/7 appointment scheduling via messengers, Integrated calendar and flexible schedule management, Automated appointment confirmations and reminders, Centralized client chat history, Income tracking and business analytics, Offline access to schedule

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

**In-app purchases:** none


## Frequently asked questions

### Is Client Book free?

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

### Is Запишу free?

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

### Do Client Book or Запишу have ads?

Запишу shows ads; Client Book does not.

### Which is updated more often, Client Book or Запишу?

Client Book ships an update every 3 months, and Запишу every 3 days. Most recently, Client Book was updated on October 11, 2026 and Запишу on October 12, 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.*