# Control de Acceso b9 vs Zarpes

The clearest difference is update cadence: Control de Acceso b9 at every 2 weeks against Zarpes's every 2 months. On price, ads, in-app purchases and device support there is nothing between them.

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

Control de Acceso b9 ships an update every 2 weeks, Zarpes every 2 months. The most recent releases landed on October 20, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Control de Acceso b9 | Zarpes |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[1.9 (15 ratings)](https://appshunter.io/ios/app/zarpes/id6745921888/reviews)** |
| Number of ratings | — | **15** |
| Positive reviews | — | 25.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Every 2 months |
| Monetization | — | Free |
| Size | 40 MB | 8 MB |
| Requires iOS | **15.1** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 17+ | 4+ |
| Developer | [Back9 C.A](https://appshunter.io/developer/1472034403) | [T4E Design](https://appshunter.io/developer/1534774016) |

## What reviewers say

### Control de Acceso b9

[App page](https://appshunter.io/ios/app/control-de-acceso-b9/id6504260509)

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

**In-app purchases:** none


### Zarpes

[App page](https://appshunter.io/ios/app/zarpes/id6745921888)

Easily notify your departure and stay updated on your vessel's status. Manage authorized personnel and explore new sailing destinations within a single application.

**Highlights:** Notify departure quickly, Track vessel status, Manage authorized personnel, Discover sailing destinations, Easy navigation

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

**In-app purchases:** none


## Frequently asked questions

### Is Control de Acceso b9 free?

Control de Acceso b9 is free to download, with no in-app purchases.

### Is Zarpes free?

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

### Do Control de Acceso b9 or Zarpes have ads?

Neither Control de Acceso b9 nor Zarpes shows ads.

### Which is updated more often, Control de Acceso b9 or Zarpes?

Control de Acceso b9 ships an update every 2 weeks, and Zarpes every 2 months. Most recently, Control de Acceso b9 was updated on October 20, 2026 and Zarpes 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.*