Comparison

3CX vs Zadarma Conf

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

3CX

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
Read full description

Stay connected and make remote work easier with 3CX. This app allows you to use your office extension from anywhere and not only for calls. Schedule conferences, chat with your colleagues and video call from your iOS device. Getting Started: 1. Install the app. 2. Open it, read and accept the license agreement and authorize the permissions the app needs (camera, microphone). 3. Open your web client or desktop app and click on the QR code in the top right corner. Details on how to access your web client are in your 3CX email sent by your administrator. 4. Open your camera on your iOS device and scan the QR code shown on your screen. 5. Your extension is configured and you’re now “Ready for calls”! Important: This app is only for use with 3CX V20 and is not a standalone app. More information: https://www.3cx.com/user-manual/installation-iphone/

About

Zadarma Conf

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
Read full description

Zadarma Сonf – free video conferencing A simple video conferencing tool supporting up to 50 participants This app was created for connecting to Zadarma video conferences. To use VoIP services (numbers, PBX) - download Zadarma app. Zadarma Сonf is a simple video conferencing tool with tens of useful features. Communicate with remote offices, partners, clients, friends and family inside the app. The app is created for smartphones and tablets with an ability to join a conference room via an invitation. Features: - Supports up to 50 participants - Video and audio encryption - HD quality - Instant access from any device - Messaging and file sharing in a chat

Screenshots

3CX4 screens
Zadarma Conf3 screens

Verdict

The call

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.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

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

ReceptionRating · Positive reviews · Number of ratings

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.

UpkeepUpdate frequency

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

Scorecard5 real differences · 5 level
3CX versus Zadarma Conf: the parameters behind the verdict, then further details
Parameter3CXZadarma Conf
PriceFreeFree
Rating2.6 (317 ratings)5.0 (1 ratings) — better
Positive reviews28.1% of reviews100.0% of reviews — better
Number of ratings317 — better1
Update frequencyMonthly — betterEvery 11 months
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS16.313.0 — better
Further details — not scored
Size64 MB66 MB
Age rating4+4+
Developer3CXZadarma Project

Customer experience

3CX

All ratings317 ratings
Positive35.0%
Neutral5.4%
Negative59.6%
Written reviews601 reviews
Positive28.1%
Neutral12.0%
Negative59.9%

Zadarma Conf

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Bugs and requests

3CX

Reported bugs

5 issues
  • 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

6 requests
  • Apple Watch support
  • Customizable ringtones
  • Do Not Disturb mode
  • Call transfer/parking functionality
  • Improved voicemail management
Show 1 more
  • Siri/voice control integration

Zadarma Conf

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

3CX

No in-app purchases

None

Zadarma Conf

No in-app purchases

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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