# Callback Duocom vs Zonitel

The clearest difference is update cadence: Zonitel at fortnightly against Callback Duocom's every 5 months. Callback Duocom's advantage is iOS requirement (8.0 vs 15.0). On price, ads, in-app purchases and device support there is nothing between them.

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

Callback Duocom ships an update every 5 months, Zonitel fortnightly. The most recent releases landed on September 30, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | Callback Duocom | Zonitel |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (13 ratings)](https://appshunter.io/ios/app/zonitel/id1542723320/reviews)** |
| Number of ratings | — | **13** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 months | **Fortnightly** |
| Monetization | — | Free |
| Size | 3 MB | 57 MB |
| Requires iOS | **8.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Duocom Europe, S.L.](https://appshunter.io/developer/438163283) | [Zonitel Solutions LLC](https://appshunter.io/developer/1542723322) |

## What reviewers say

### Callback Duocom

[App page](https://appshunter.io/ios/app/callback-duocom-sin-roaming/id438163280)

**Features:** macOS Compatibility

**In-app purchases:** none


### Zonitel

[App page](https://appshunter.io/ios/app/zonitel/id1542723320)

This business communication app allows users to manage calls, texts, and faxes from a single platform. It offers features like call history, recordings, unlimited domestic calls, and business messaging. Users can send and receive faxes directly through the application.

**Highlights:** Call history and recordings, Unlimited domestic calls, Business text messaging, Send and receive faxes, Unified communication platform

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

**In-app purchases:** none


## Frequently asked questions

### Is Callback Duocom free?

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

### Is Zonitel free?

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

### Do Callback Duocom or Zonitel have ads?

Neither Callback Duocom nor Zonitel shows ads.

### Which is updated more often, Callback Duocom or Zonitel?

Callback Duocom ships an update every 5 months, and Zonitel fortnightly. Most recently, Callback Duocom was updated on September 30, 2026 and Zonitel on October 8, 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.*