# CitasApp Pro vs Pocket Client Book

CitasApp Pro and Pocket Client Book are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases 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. CitasApp Pro sells 1 in-app purchase, starting at $1.99 per month and Pocket Client Book sells 2 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

CitasApp Pro ships an update every 10 days, Pocket Client Book every 2 weeks. Both last shipped on October 14, 2026.

## The numbers

| Metric | CitasApp Pro | Pocket Client Book |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 10 days** | Every 2 weeks |
| Size | 16 MB | 15 MB |
| Requires iOS | **17.0** | 17.6 |
| Devices | **iPhone, iPad, Mac** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Felix Carmona Rojas](https://appshunter.io/developer/6776305006) | [Artem Danylov](https://appshunter.io/developer/6778438593) |

## What reviewers say

### CitasApp Pro

[App page](https://appshunter.io/ios/app/citasapp-pro/id6776305004)

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| CitasApp Pro Mensual | $1.99 | per month |


### 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 |


## Frequently asked questions

### Is CitasApp Pro free?

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

### Is Pocket Client Book free?

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

### Do CitasApp Pro or Pocket Client Book have ads?

Neither CitasApp Pro nor Pocket Client Book shows ads.

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

CitasApp Pro ships an update every 10 days, and Pocket Client Book every 2 weeks. Most recently, CitasApp Pro was updated on October 14, 2026 and Pocket Client Book on October 14, 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.*