# Castel SIP vs Softphone

The clearest difference is price: Castel SIP at Free against Softphone's $0.99. Softphone's advantage is iOS requirement (13.0 vs 15.5). On ads, in-app purchases and device support there is nothing between them.

Castel SIP is free to download; Softphone costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | Castel SIP | Softphone |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| Positive reviews | 60.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | — |
| Monetization | Free | — |
| Size | 84 MB | 102 MB |
| Requires iOS | 15.5 | **13.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Castel](https://appshunter.io/developer/566301834) | [Choicecloud Ltd](https://appshunter.io/developer/1646929865) |

## 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


### Softphone

[App page](https://appshunter.io/ios/app/softphone-pbx/id6470394080)

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

**In-app purchases:** none


## Frequently asked questions

### Is Castel SIP free?

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

### Is Softphone free?

Softphone costs $0.99, with no in-app purchases.

### Do Castel SIP or Softphone have ads?

Neither Castel SIP nor Softphone 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.*