# OpusTel vs Chess Cloud PBX

The clearest difference is rating: OpusTel at 5.0 against Chess Cloud PBX's 4.0. OpusTel also leads on ratings volume (6 vs 1) and iOS requirement (16.0 vs 18.0). Chess Cloud PBX's advantage is update cadence (every 3 months vs every 14 months) and review sentiment (100% vs 80%). 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.

OpusTel holds the better App Store score, 5.0 against 4.0. That said, the two scores are not equally well evidenced: OpusTel has 6 ratings behind it against 1, so its average is the more settled of the two. Written reviews complicate that: 80% of OpusTel's written reviews are positive against 100% of Chess Cloud PBX's, so the app with the better star average is not the one people write more warmly about.

OpusTel ships an update every 14 months, Chess Cloud PBX every 3 months. The most recent releases landed on September 29, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | OpusTel | Chess Cloud PBX |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (6 ratings)](https://appshunter.io/ios/app/opustel/id945641896/reviews)** | [4.0 (1 ratings)](https://appshunter.io/ios/app/chess-cloud-pbx/id1478414865/reviews) |
| Number of ratings | **6** | 1 |
| Positive reviews | 80.0% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 14 months | **Every 3 months** |
| Monetization | Free | Free |
| Size | 98 MB | 43 MB |
| Requires iOS | **16.0** | 18.0 |
| Devices | iPhone | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [OpusTel](https://appshunter.io/developer/945641895) | [Chess ICT Ltd](https://appshunter.io/developer/1478414864) |

## What reviewers say

### OpusTel

[App page](https://appshunter.io/ios/app/opustel/id945641896)

This app provides a real Swiss international telephone number for secure VoIP calls on iOS devices. It offers HD audio quality, free global calls between users, and call recording capabilities, all with a focus on user privacy.

**Highlights:** Real Swiss international telephone number, Secure VoIP calls, HD high-definition audio quality, Free global calls between users, Call recording, Conference calls, Automatic language selection

**In-app purchases:** none


### Chess Cloud PBX

[App page](https://appshunter.io/ios/app/chess-cloud-pbx/id1478414865)

This communication app offers a flexible, scalable telephony solution for businesses. It allows users to manage office functions, join conferences, and seamlessly transfer calls between devices, enabling work from any location.

**Highlights:** Scalable pay-as-you-grow solution, Work from anywhere with any device, Office functions on the go, Dial into conferences remotely, Seamless call handover to desktop

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

**In-app purchases:** none


## Frequently asked questions

### Is OpusTel free?

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

### Is Chess Cloud PBX free?

Chess Cloud PBX is free to download, with no in-app purchases.

### Which has better reviews, OpusTel or Chess Cloud PBX?

OpusTel is rated higher. OpusTel averages 5.0 out of 5 from 6 ratings, while Chess Cloud PBX averages 4.0 from 1 ratings.

### Do OpusTel or Chess Cloud PBX have ads?

Neither OpusTel nor Chess Cloud PBX shows ads.

### Which is updated more often, OpusTel or Chess Cloud PBX?

OpusTel ships an update every 14 months, and Chess Cloud PBX every 3 months. Most recently, OpusTel was updated on September 29, 2026 and Chess Cloud PBX on October 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.*