# Castel SIP vs VoxCon

The clearest difference is iOS requirement: VoxCon at 11.0 against Castel SIP's 15.5. On price, ads, in-app purchases and monetization model there is nothing between them.

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

## The numbers

| Metric | Castel SIP | VoxCon |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.0 (1 ratings)](https://appshunter.io/ios/app/voxcon/id1620998032/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | 60.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | — |
| Monetization | Free | Free |
| Size | 84 MB | 44 MB |
| Requires iOS | 15.5 | **11.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Castel](https://appshunter.io/developer/566301834) | [OpenVox Communication Co., Ltd](https://appshunter.io/developer/1478854729) |

## What reviewers say

### Castel SIP

[App page](https://appshunter.io/ios/app/castel-sip/id566301831)

This application functions as a SIP intercom softphone, enabling users to make and receive audio and video calls from IP intercom stations on their mobile devices. It allows for communication and remote door opening, working through Wi-Fi and cellular data networks.

**Highlights:** Audio and video calls, IP intercom station integration, Remote door opening, Address book with favorites, Call history, Remote commands during calls

**Features:** macOS Compatibility

**In-app purchases:** none


### VoxCon

[App page](https://appshunter.io/ios/app/voxcon/id1620998032)

This application enables voice and video calls, along with instant messaging, using cellular data or WiFi. It connects to IPPBX systems or other SIP servers, offering advanced call management and security features.

**Highlights:** SIP-based softphone, Voice and video calls, Instant messaging, Call management (switch, merge, transfer), Advanced security settings, HD audio and 1080P video support, NAT traversal options

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Castel SIP free?

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

### Is VoxCon free?

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

### Do Castel SIP or VoxCon have ads?

Neither Castel SIP nor VoxCon 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.*