# Castel SIP vs PimentoPhone

The clearest difference is review sentiment: PimentoPhone at 100% against Castel SIP's 60%. PimentoPhone also leads on update cadence (every 2 weeks vs every 4 months). 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.

Castel SIP ships an update every 4 months, PimentoPhone every 2 weeks. The most recent releases landed on November 1, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | Castel SIP | PimentoPhone |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 60.0% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 2 weeks** |
| Monetization | Free | Free |
| Size | 84 MB | 26 MB |
| Requires iOS | 15.5 | **15.1** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Castel](https://appshunter.io/developer/566301834) | [Vindaloo Softtech Private Limited](https://appshunter.io/developer/1458849957) |

## 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


### PimentoPhone

[App page](https://appshunter.io/ios/app/pimentophone/id1458849958)

This application provides internet-based voice calls and instant messaging, eliminating the need for traditional phone lines. It offers HD voice quality, contact management, and integration with other collaboration tools for enhanced productivity and cost savings.

**Highlights:** HD Voice Calls, Instant Messaging, Contact Management, Customizable Interface, BLF Integration, Cost-Effective Calling

**In-app purchases:** none


## Frequently asked questions

### Is Castel SIP free?

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

### Is PimentoPhone free?

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

### Do Castel SIP or PimentoPhone have ads?

Neither Castel SIP nor PimentoPhone shows ads.

### Which is updated more often, Castel SIP or PimentoPhone?

Castel SIP ships an update every 4 months, and PimentoPhone every 2 weeks. Most recently, Castel SIP was updated on November 1, 2026 and PimentoPhone on November 3, 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.*