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Zadarma Review 2026:
Features, Pricing & User Feedback
Exploring Zadarma? Discover what real users say about call quality, features, and support—plus see how CloudTalk compares.
What is Zadarma?
Zadarma is a London-based VoIP provider established in 2006, offering virtual numbers in 110+ countries. Its primary appeal is low-cost access to International Numbers and a free virtual PBX. With per-second billing and native connectivity for Salesforce, it targets businesses seeking global reach with minimal initial overhead.
Following recent acquisitions, Zadarma has integrated advanced AI Voice Agents and speech analytics into its stack. These updates, alongside expanded public APIs, enable users to build sophisticated Workflow Automation sequences. This 2025 roadmap positions them as a growing player in the European AI-driven telephony market.
Despite its features, Zadarma faces reliability concerns, particularly regarding verification delays and inconsistent Customer Details management. Users frequently report account cancellations and poor support response times. Businesses requiring stable Unlimited Concurrent Calls often find these systemic risks too high for mission-critical operations.
What are Zadarma's Key Features?
- Virtual numbers in 110+ countries — local, mobile, toll-free, national
- Free Cloud PBX with visual flow editor, IVR menus (4 on Standard, up to 12 on Corporation), call recording, and voicemail-to-email
- AI Voice Agent for inbound automation (100 mins included on Office, 200 mins on Corporation)
- Shopify integration with auto-creation of customer records from inbound calls
- eSIM data packages for traveling employees — unique differentiator
- GDPR-compliant; 24/7 support in 7 languages
What Users Say About Zadarma
Based on 100+ verified reviews from G2, Capterra, and Trustpilot
😊 What Users Love
- Free Cloud PBX and free Teamsale CRM are genuinely functional
- Per-second billing avoids the per-minute rounding waste of legacy carriers
- Microsoft Teams and Slack-native calling work cleanly for distributed teams
- Speech analytics surfaces useful coaching insights for established users
"We moved to Zadarma when call volume increased and our previous setup couldn’t handle it. After months of daily use, it feels reliable."
😤 What Users Hate
- Control panel feels dated — multiple reviewers describe the interface as out of step with modern UX
- SMS on mobile numbers requires a 3-month prepayment not disclosed at signup
- Integration setup described as fragile — small configuration errors break call sync
- UI feels less intuitive and modern compared to newer call center alternatives.
- Accounts and phone numbers cancelled without warning — including for long-term customers
"This may be an extraordinary piece of software but I cannot base my business on a piece of software where the support organization cannot communicate and where the installation/integration instructions cannot be reasonably followed..."
What Are People Talking about Zadarma on G2?
See what real users are saying about Zadarma's product on G2 — honest reviews, real experiences, and feedback from teams who have used it.
We handle policy inquiries, claims, and renewals, so call routing makes a big difference for us. This system helps direct callers to the right department quickly, without long wait times. It’s also useful that missed calls are easy to track, so we can follow up and return them promptly."
Insurance Advisor
We only discovered there was a Zoho plan limitation when we went to enable the integration. It was a small surprise during setup and meant we had to make a quick adjustment on our side to move forward.You can not remove licences once you add them; you have to contact support for them."
Account Manager
The support is very bad as the person who answers you always has the same name and says that he can't do anything to help you."
Company Name
Présidente-fondatrice
Zadarma2025 Winter LeaderLooking for an Zadarma Alternative?
See why 5,500+ businesses switched to CloudTalk for superior call quality and AI-powered features.
Top-rated on G2
Consistently rated highly on G2, CloudTalk helps teams ramp faster, avoid complexity, and rely on a phone system that works as expected from day one.
100+ integrations
Your CRM, helpdesk, and sales tools already talk to each other. CloudTalk just joins the conversation and makes it way more productive.
Coverage in 160+ countries
From next door to across the globe, CloudTalk keeps your calls clear, local, and ready to grow with your business.
CloudTalk vs Zadarma: Side-by-Side
See how CloudTalk delivers superior performance where it matters most
Why Choose CloudTalk Over Zadarma
The six capabilities Zadarma customers tell us they wish they'd had on day one.
Businesses That Switched to CloudTalk
Real results from real companies that made the move—and never looked back.
“In the old platform, there was no automatic ticket creation. We had to manually check the logs to see which calls were missed and whether they were followed up. It made it difficult to track exactly how many calls we missed or managed to handle.”
“Once we switched to CloudTalk, our missed calls dropped by 23%. That’s not just a number; that’s customers we’re able to connect with before it’s too late.”
Vendor Operations Manager at Aspire
“We didn’t have trustworthy data. Reports didn’t match, calls weren’t recorded properly, and even billing discrepancies became a recurring issue.”
“With CloudTalk, we finally have visibility. We can see which teams are handling calls and whether they’re the right ones for the job. That allows us to rebalance workloads.”
Customer Experience Coordinator at Alura
“We were stuck at a 20–30% pickup rate with Aircall. With CloudTalk, we’ve hit 40–50%. That’s made all the difference.”
"We use the tag feature a lot to track where leads are in the funnel. And the dashboard helps each rep see where they’re at."
Chief Marketing Office at Velu
Frequently Asked Questions
Zadarma requires identity-document verification that can take up to 20 days, often leading to rejected documents and long support gaps. If your business depends on keeping lines active, you can minimize risk by using a provider with reliable Call Recording and transparent verification protocols that don't result in sudden, mid-operation account suspensions.
The plan is free for the platform itself, but it limits you to 4 concurrent outgoing calls and has been reported to cut calls at the 5-minute mark. Businesses that outgrow these constraints typically move to a model supporting Call Queuing and professional-grade infrastructure to handle high-volume traffic without undocumented call limits.
As a virtual PBX, Zadarma lacks the contact center layer needed for serious outbound throughput. It does not offer a Parallel Dialer or advanced supervisor tools, making it better suited for basic routing than for teams that need to automate list pacing and manage complex campaigns.
While Zadarma offers a respectable list of native connections, users often report that configuration errors can easily break the sync. Opting for a native HubSpot integration ensures real-time, bi-directional data flow with documented field mappings, allowing non-technical admins to manage the connection without external consultants.
Zadarma maintains GDPR compliance through its European offices and data centers. For teams in more strictly regulated fields, looking for an even higher Security standard—including SOC 2 Type II and HIPAA-aligned Business Associate Agreements—ensures your voice data meets the same rigorous requirements as your internal CRM and medical records.
The most frequent triggers for switching include verification incidents that take inbound lines offline and the need for a Preview Dialer to improve lead follow-up. When a team outgrows the PBX feature ceiling or requires better support response times for live issues, they transition to a more agile, contact-center-first platform.
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