# 3CX vs Zadarma Conf

The clearest difference is review sentiment: Zadarma Conf at 100% against 3CX's 28%. Zadarma Conf also leads on rating (5.0 vs 2.6) and iOS requirement (13.0 vs 16.3). 3CX's advantage is update cadence (monthly vs every 11 months) and ratings volume (317 vs 1). 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.

Zadarma Conf holds the better App Store score, 5.0 against 2.6. That said, the two scores are not equally well evidenced: 3CX has 317 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 28% of 3CX's written reviews are positive against 100% of Zadarma Conf's.

3CX ships an update monthly, Zadarma Conf every 11 months. The most recent releases landed on September 24, 2026 and September 15, 2026 respectively.

## The numbers

| Metric | 3CX | Zadarma Conf |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.6 (317 ratings)](https://appshunter.io/ios/app/3cx/id992045982/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/zadarma-conf/id1504654594/reviews)** |
| Number of ratings | **317** | 1 |
| Positive reviews | 28.1% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Monthly** | Every 11 months |
| Monetization | Free | Free |
| Size | 64 MB | 66 MB |
| Requires iOS | 16.3 | **13.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [3CX](https://appshunter.io/developer/392927998) | [Zadarma Project](https://appshunter.io/developer/984451132) |

## What reviewers say

### 3CX

[App page](https://appshunter.io/ios/app/3cx/id992045982)

This app enables remote work by allowing users to access their office phone extension from any location. It facilitates calls, conference scheduling, team chat, and video conferencing directly from an iOS device.

**Highlights:** Office extension access anywhere, Schedule conferences, Chat with colleagues, Video calls, QR code setup

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

**In-app purchases:** none

**What reviewers like**

- 🚀 Works great
- 👍 Easy to use
- 👍 Convenient mobile extension
- 👍 Reliable system
- 👍 Powerful features

**What reviewers complain about**

- 🐛 Calls drop/disconnect
- 🐛 Call quality issues
- 🐛 Unreliable notifications
- 🐛 Frequent bugs and crashes
- 🐛 Compatibility issues with iOS updates

**Reported bugs**

- Inability to answer/make calls
- Freezing/crashing during calls
- Missed call notifications not working
- Incompatibility with certain iOS versions
- Issues with call transfer and merging

**Requested features**

- Apple Watch support
- Customizable ringtones
- Do Not Disturb mode
- Call transfer/parking functionality
- Improved voicemail management


### Zadarma Conf

[App page](https://appshunter.io/ios/app/zadarma-conf/id1504654594)

A straightforward video conferencing tool designed for connecting with up to 50 participants. It offers encrypted HD video and audio, instant access from any device, and in-chat messaging and file sharing for seamless communication with colleagues, clients, or loved ones.

**Highlights:** Up to 50 participants, Video and audio encryption, HD quality, Instant access from any device, Messaging and file sharing in chat

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is 3CX free?

3CX is free to download, with no in-app purchases.

### Is Zadarma Conf free?

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

### Which has better reviews, 3CX or Zadarma Conf?

Zadarma Conf is rated higher. 3CX averages 2.6 out of 5 from 317 ratings, while Zadarma Conf averages 5.0 from 1 ratings.

### Do 3CX or Zadarma Conf have ads?

Neither 3CX nor Zadarma Conf shows ads.

### Which is updated more often, 3CX or Zadarma Conf?

3CX ships an update monthly, and Zadarma Conf every 11 months. Most recently, 3CX was updated on September 24, 2026 and Zadarma Conf on September 15, 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.*