# CallOne Softphone vs Duzzcall

The clearest difference is device support: Duzzcall at 3 against CallOne Softphone's 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.

CallOne Softphone ships an update every 3 months, Duzzcall every 5 months. The most recent releases landed on September 21, 2026 and September 7, 2026 respectively.

## The numbers

| Metric | CallOne Softphone | Duzzcall |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 months** | Every 5 months |
| Size | 97 MB | 107 MB |
| Requires iOS | 16.0 | **15.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [CallOne GmbH](https://appshunter.io/developer/1652646749) | [Duzzcall Pvt Ltd](https://appshunter.io/developer/1696448693) |

## What reviewers say

### CallOne Softphone

[App page](https://appshunter.io/ios/app/callone-softphone/id6444151385)

**In-app purchases:** none


### Duzzcall

[App page](https://appshunter.io/ios/app/duzzcall/id6451069222)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is CallOne Softphone free?

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

### Is Duzzcall free?

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

### Do CallOne Softphone or Duzzcall have ads?

Neither CallOne Softphone nor Duzzcall shows ads.

### Which is updated more often, CallOne Softphone or Duzzcall?

CallOne Softphone ships an update every 3 months, and Duzzcall every 5 months. Most recently, CallOne Softphone was updated on September 21, 2026 and Duzzcall on September 7, 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.*