# DUSphone vs RocketVox

The clearest difference is rating: RocketVox at 5.0 against DUSphone's 3.0. DUSphone's advantage is ratings volume (3 vs 1). On price, update cadence, ads and in-app purchases there is nothing between them.

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

RocketVox holds the better App Store score, 5.0 against 3.0. Both are backed by a comparable volume of ratings — 3 and 1 respectively.

DUSphone ships an update every 10 days, RocketVox weekly. The most recent releases landed on October 7, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | DUSphone | RocketVox |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.0 (3 ratings)](https://appshunter.io/ios/app/dusphone/id498522414/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/rocketvox/id6779957520/reviews)** |
| Number of ratings | **3** | 1 |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 10 days | **Weekly** |
| Monetization | Free | Free |
| Size | 11 MB | 7 MB |
| Requires iOS | 17.0 | **16.6** |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [dus.net GmbH](https://appshunter.io/developer/381540677) | [HeavyLogic](https://appshunter.io/developer/374298775) |

## What reviewers say

### DUSphone

[App page](https://appshunter.io/ios/app/dusphone/id498522414)

This VoIP softphone allows you to make encrypted, HD-quality calls to landlines, mobile numbers, and other lines directly from your iPhone. It offers seamless integration with your device and ensures your conversations remain private. Manage multiple lines and keep track of your prepaid balance with ease.

**Highlights:** Encrypted calling (TLS/SRTP), HD voice quality (Opus codec), Native call integration (Apple CallKit), Reliable incoming calls (VoIP push), Call landlines and mobile numbers, Multi-account management, Caller ID management

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

**In-app purchases:** none


### RocketVox

[App page](https://appshunter.io/ios/app/rocketvox/id6779957520)

This business phone service app offers a modern VoIP experience for making and receiving calls, managing availability, and accessing company contacts and voicemails. It provides a reliable way to stay productive and maintain professional communications from any location.

**Highlights:** High-performance VoIP calling, Company directory access, Business call history, Voicemail access, Mobile Connect controls, Presence and availability support

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

**In-app purchases:** none


## Frequently asked questions

### Is DUSphone free?

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

### Is RocketVox free?

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

### Which has better reviews, DUSphone or RocketVox?

RocketVox is rated higher. DUSphone averages 3.0 out of 5 from 3 ratings, while RocketVox averages 5.0 from 1 ratings.

### Do DUSphone or RocketVox have ads?

Neither DUSphone nor RocketVox shows ads.

### Which is updated more often, DUSphone or RocketVox?

DUSphone ships an update every 10 days, and RocketVox weekly. Most recently, DUSphone was updated on October 7, 2026 and RocketVox on October 6, 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.*