We’re a travel tech company, so our team is spread across Europe, Southeast Asia, and South America. Zadarma's e SIM feature has changed the game for us. Our product manager in Bali no longer has to h... See more
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Zadarma – Cloud communications platform Zadarma offers the best VoIP phone system – Cloud PBX, virtual numbers in 100+ countries, free CRM system and integration with top CRM systems, useful widgets, speech analytics, eSIM, low-cost rates on international calls and more.
United States
Replied to 97% of negative reviews
Typically replies within 1 week
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The worst service I've ever experienced in my online life. Expensive, crappy phone numbers and useless support. Don't waste your time and money like I just did.

Reply from Zadarma
I had ok-ish turnaround time with support. They executed on refund and closing account super fast and without error.
The bad part is that they were not able to validate my identity for purpose of virtual number and they repeatedly asked for me to provide documents I already uploaded. Among them there was my passport and utility bill that proves my identity and address. Seeing how zadarma handles understanding of these documents I decided that I do not trust their judgment and closed account. I hope my files are safe and that they are gdpr complaint. Company seems to have various good features and ok processes but they were not proactive enough on support level so we could close our deal and open themselves to some new opportunities.
Two for being professional and operational but we never wrapped what we started despite the effort.

Reply from Zadarma
Our team, spread across multiple locations, faced challenges with maintaining effective communication. We needed a platform that could unify our operations. Zadarma’s conference call and video solutions provided the perfect solution, ensuring clear audio and video quality during every meeting. As a result, collaboration improved significantly, and projects were completed much faster.

Reply from Zadarma
Customer feedback indicated dissatisfaction with call handling, but we lacked data to pinpoint issues. Zadarma’s speech analytics provided real-time insights into agent performance and customer sentiment. By addressing the identified gaps, we improved service quality and reduced customer complaints by 23,5%.

Reply from Zadarma
To register with zadarma you need to buy another number in another service and then register this number with zadarma. Since zadarma cannot confirm numbers from my country

Reply from Zadarma
The voicemail transcription feature is awesome. Instead of listening to every messade, I can just read the transcribed text and get the gist in seconds. It’s made prioritizing follow-ups way more efficient.

Reply from Zadarma
Worst Support I ever experienced in my life. Since 6 weeks I try to import my existing UK number and every week they come with a new problem why it is not working. It is really a nightmare to work with the support.

Reply from Zadarma
We serve clients in three languages, and Zadarma’s multi-language IVR has been a game-changer. Now callers can select their preferred language right from the start, which has made the experience more professional and efficient.

Reply from Zadarma
Very suspect customer service and billing.
Here is my interaction with them. Note, I just paid for their service today (May 8, 2025). Very cryptic responses and not eager to help.
Hello, how can we help you?
YouHello. I just paid the $24 top off but it still says I owe 0.5 cents. Why is this and can you make the adjustment?08:43 PM
VladHere you can check your top-up history: link was inserted here
You paid $24 for 19024181702 : link was inserted here 08:47 PM
YouWhen I try to pay just the 0.5 cents it won't let me. It looks like I cannot pay that little amount as the minimum is $5.00. Please advise.08:49 PM
Vlad
When I try to pay just the 0.5 cents it won't let me. It looks like I cannot pay that little amount as the minimum is $5.00.
Correct
Minimum top-up:
PayPal, Visa/Mastercard - $508:51 PM
YouBut I only owe 0.5 cents and that should have been added to the initial top up. Can you make the adjustment?08:52 PM
You$24 was what I was instructed to pay. Not $24 05. Why is this?08:53 PM
You3.3
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5-star
37%
4-star
15%
3-star
2%
2-star
3%
1-star
43%08:55 PM
YouI'm afraid I will have to submit this conversation and give an appropriate review for you service. Investigative research.08:56 PM
VladPlease clarify what the issue is and describe it in more detail.

Reply from Zadarma
The app is reliable, I'm very happy with it. Call's quality is absolutely great, service is affordable, support answers quickly and provides help with all types of queries.

Reply from Zadarma
Bad customer service, not taking responsibility on issues. i have 2 numbers for more then 2 years, and now . im not getting messages for few days they are blaming the whole world but themselves.
the representative is probably AI or not trying even a bit named Veronika.

Reply from Zadarma
What was an application that had a lot of potential has had its coding changed to milk the individual for as much money as possible. A lot of functionality is gone, using a privacy VPN for security doesn't work so they have made moves to access people's data more. Very disturbing. I'm going back to Skype probably except that's gone now.
I took huge levels of investment capital out of the Country they are based in as a recourse. The information they used to change their systems seems stolen and breached privacy laws. I sent the Capital further East on the Eur-Asian continent.

Reply from Zadarma
Managing voicemails manually led to inefficiencies. Zadarma’s voicemail-to-email feature ensured all messages were accessible instantly enhancing client follow-ups and streamlining our workflow seamlessly.

Reply from Zadarma
Virtual meetings often faced disruptions, hampering productivity. Zadarma’s video conferencing offered stability and clarity, enabling effective communication and faster project completions.

Reply from Zadarma
They fish for US passports data, stay away!

Reply from Zadarma
Don’t even bother trying to get a plan with Zadarma. They will not port your numbers over. Even though they say they have sms you need to register a campaign and get written permission from people in order to send an sms. You can recieve sms but are not able to respond in US. Very bizarre system. They tout all these amazing features but it’s all smoke and mirrors!

Reply from Zadarma
Handling sensitive client information, Zadarma’s encrypted features assured data confidentiality. This helped build client trust and meet strict regulatory compliance.

Reply from Zadarma
Understanding effective marketing channels was challenging. Zadarma’s call tracking offered detailed insights, enabling us to adjust campaigns and achieve higher-quality leads.

Reply from Zadarma
They simply blocked the phone number to which my bank accounts were linked, without any warnings. I am very disappointed with this company. Although it used to be the best company in this field.

Reply from Zadarma
Zadarma.com is a complete scam. They collect your payment as soon as you sign up—before you can even access or use the service. After paying, you're immediately forced into a broken and frustrating verification process that leads nowhere.
I submitted my documents, including my business registration, but their system keeps looping me back to take a passport photo and a selfie again. There are no clear instructions, no confirmation, and absolutely no access to the service I paid for.
The pricing may seem attractive, but it's a catch—they're more focused on collecting your personal information than actually providing the service. It feels like they’re intentionally stalling while holding on to your money.
Their customer support is completely useless. I opened a support ticket, and all I received were copy-paste replies with no real help or resolution.
After reading more reviews online, it’s clear I’m not the only one. Many others are calling them out for fraud, data harvesting, and unethical practices.
This website and its practices must be reported to the FBI. I will also be making a video to share my experience and warn others not to fall into the same trap.
Avoid Zadarma.com at all costs. This is not a trustworthy company.

Reply from Zadarma
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