Suggestions appear as you type. Use the up and down arrows to choose one and Enter to open it.

This page's audience our own tag's counts — open to see them
–Visits
–Page views
–Clicks to vendors
–Time on page
–Reading now
Clicks to vendors, by tool
  • –
Top countries
  • –
Devices
  • –

– · visits, page views and clicks counted by our own tag, which counts more than our checked analytics; every figure rounded down · how we count

Head-to-head · Call Management system

3CX vs Zadarma

  • Updated Oct 2026
  • Both researched from official sources
  • 1 check side by side
Higher score 3CX #1 in Call Management system 9.3/10 Free plan Free plan✓ 0 of 4 features Visit 3CX
Zadarma #8 in Call Management system 8.3/10 Free plan · 7-day trial Free planFree trial✓ 0 of 4 features Visit Zadarma

3CX leads on 0 checks, Zadarma on 0, and 1 is even. Who comes out ahead on the 1 yes/no, price and count check where we have data for both products. The editor score weighs everything else too.

Our verdict

  • Highest score3CX · 9.3/10
  • Free planboth
  • Free trialonly Zadarma

3CX scores higher on our rubric for call management system: 9.3 against 8.3 out of 10; our editors rank them #1 and #8.

3CX is the better fit for teams wanting a flexible, full-featured PBX. Zadarma is the better fit for teams seeking a free entry point and many calling apps.

  • 3CX fits best

    Teams wanting a flexible, full-featured PBX

  • Zadarma fits best

    Teams seeking a free entry point and many calling apps

Advertiser disclosure: iTechGuides is reader-supported. Vendors can pay for top positions in our rankings and for a place on other products' pages, and we may earn a commission when you click some links. Bought places stand at the number bought; this page and our disclosure say so. Paying vendors may get a fuller, more detailed review from our editors, and that review can change their score. How we rank.

Side by side

Feature 3CX 9.3/10 Visit ↗ Zadarma 8.3/10 Visit ↗
At a glance
Editor score 9.3 8.3
Ranking #1 in Call Management system #8 in Call Management system
Best for Teams wanting a flexible, full-featured PBX Teams seeking a free entry point and many calling apps
Pricing model Free plan + paid Free plan + paid
Starting price $300/yr $39/mo
Free plan ✓ ✓
Free trial — 7 days
Deployment Cloud, Self-hosted, Desktop, Mobile Cloud, Desktop, Mobile, Browser extension
Platforms Web, Windows, macOS, Linux, iOS, Android Web, Windows, macOS, iOS, Android, Chrome extension
Support Community, Docs Live chat, Phone, Tickets · 24/7
Built for Small business, Mid-market, Enterprise Small business, Mid-market, Enterprise
Features 3CX 0/4 · Zadarma 0/4
Call queues Not checked yet Not checked yet
IVR Not checked yet Not checked yet
Call recording Not checked yet Not checked yet
Call analytics & reports Not checked yet Not checked yet
Specs
Call routing Not checked yet Custom
Supported channels Not checked yet Not checked yet
Our review
Pros
  • Free edition supports up to 10 users and 4 simultaneous calls
  • Visual call-flow tools, queues, recording and transcription
  • Cloud or self-hosted deployment across web, desktop and mobile
  • Free Standard plan includes cloud PBX, CRM users and four voice menus
  • Calling apps span iOS, Android, Windows, macOS, web and Chrome
  • IVR, queues, routing, recording and speech-to-text cover core call workflows
Cons
  • Free plan is limited to 10 users and 4 simultaneous calls
  • Basic supports up to 40 extensions and 8 simultaneous calls
  • Support channels are community and documentation
  • Standard limits recording storage to 200 MB and voice menus to four
  • Office World minutes are capped across Zone 1 and Zone 2 destinations
  • Calling allowances and prices vary by selected region and currency
Our verdict

3CX is a business communications platform built around an IP phone system for small businesses, mid-market organizations, enterprises and contact centers. It combines phone, video, chat and contact-center functions with auto-attendants,…

Read the review →

Zadarma is a cloud communications service for businesses, call centers and distributed teams. It combines cloud PBX, virtual phone numbers, SIP trunking, IVR menus, call queues, forwarding, recording, speech recognition and analytics.…

Read the review →
  1. 3CXCall Management system 9.3Free plan
  2. ZadarmaCall Management system 8.3Free plan · 7-day trial

Strengths and trade-offs

  • 3CX — where it wins

    • Free edition supports up to 10 users and 4 simultaneous calls
    • Visual call-flow tools, queues, recording and transcription
    • Cloud or self-hosted deployment across web, desktop and mobile

    Where it doesn't

    • Free plan is limited to 10 users and 4 simultaneous calls
    • Basic supports up to 40 extensions and 8 simultaneous calls
    • Support channels are community and documentation

  • Zadarma — where it wins

    • Free Standard plan includes cloud PBX, CRM users and four voice menus
    • Calling apps span iOS, Android, Windows, macOS, web and Chrome
    • IVR, queues, routing, recording and speech-to-text cover core call workflows

    Where it doesn't

    • Standard limits recording storage to 200 MB and voice menus to four
    • Office World minutes are capped across Zone 1 and Zone 2 destinations
    • Calling allowances and prices vary by selected region and currency
  • 3CX9.3/10 · Free plan

    A flexible PBX with broad clients, visual call flows, integrations and self-hosted deployment.

    Visit 3CXFull verdict →
  • Zadarma8.3/10 · Free plan · 7-day trial

    A flexible cloud PBX with a free plan, broad calling apps and configurable call handling.

    Visit ZadarmaFull verdict →

More comparisons

All call management system comparisons → · Full ranking →

Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

Last updated · How we research and update