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Review summary

Created with AI, based on recent reviews

Looking at 167 reviews, most reviewers were somewhat happy with their experience overall. Customers generally appreciate the user-friendly experience, finding the setup quick and the system reliable for managing calls and workflows. Many highlight the flexibility in managing extensions and call forwarding rules, which helps streamline operations and maintain a professional image, even for remote teams. The staff is often praised for their helpfulness and responsiveness, contributing to a positive overall impression. However, some people were dissatisfied with the service and customer support. Several customers reported issues with account verification, being asked for numerous documents without clear explanations, leading to frustration and delays. There are also mentions of calls being cut, SMS messages getting lost, and difficulties with international cloud services, with some feeling that support was unresponsive or unhelpful when these problems arose.

What people talk about most

Service

Reviewers mention ambiguous feedback about service. Many customers praise the service, highlighting stable... See more

User experience

People report positive experiences with user experience, highlighting its functionality, reliability, and... See more

Customer service

Reviewers highlight ambiguous aspects of customer service. Some customers praise the quick response times,... See more

Customer communications

Customers consistently note ambiguous experiences with contact. Some reviewers praise features like call... See more

Staff

Consumers generally express satisfaction with the staff. Many reviewers highlight the support team's... See more

Reviews shaping this summary

Rated 4 out of 5 stars

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

Company replied

Rated 4 out of 5 stars

We integrated Zadarma with Teams for internal and external calls and it’s smooth. Everyone can answer or transfer calls right from the Teams interface. Setup took maybe 20 minutes tops. There were som... See more

Company replied

Rated 4 out of 5 stars

We’re a small consulting firm with team members working remotely, and Zadarma has been very dependable so far. Call quality is consistently good, even when someone is on home Wi-Fi. We mainly use call... See more

Company replied

Rated 4 out of 5 stars

I travel between Lisbon, New York and Dubai for client meetings and used to rack up massive roaming charges. With Zadarma’s eSIM, I can activate a local data connection before I land in a new country,... See more

Company replied


Company details

  1. Telecommunications service provider
  2. Call Centre
  3. CRM Provider
  4. Video Conferencing Service Provider

Written by the company

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.


Contact info

3.3

Average

TrustScore 3.5 out of 5

677 reviews

5-star
4-star
3-star
2-star
1-star

Replied to 97% of negative reviews

Typically replies within 1 week

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Rated 1 out of 5 stars

Company is a scam fishing for US…

Company is a scam fishing for US passport data. Do not upload your US passports!!

5 April 2025
Unprompted review
Zadarma logo

Reply from Zadarma

Thank you for your feedback. Unfortunately, we couldn't complete the verification process because the documents provided didn’t meet the requirements. Please contact our support team at support@zadarma.com or open a ticket at https://my.zadarma.com/tickets/ so we can assist you further.

Rated 5 out of 5 stars

Customizable call forwarding for flexibility

Our dynamic team, often working from multiple locations, benefited from Zadarma's customizable call forwarding. It ensured seamless handling of calls and reduced missed opportunities.

2 April 2025
Unprompted review
Zadarma logo

Reply from Zadarma

Thank you for your feedback! We're glad to hear that our customizable call forwarding helped your team stay connected and efficient across locations. It's great to know it made a positive impact on your operations.

Rated 1 out of 5 stars

2 Weeks to Port a Number

Hoped to replace virtual Skype number. After 2 weeks of constantly messaging them and jumping through so many hoops, my number was ported. Verifying identity was unnecessarily difficult. Important for you to know that unlike, Skype, you can only receive SMS messages and cannot send them. They were up front about this though. I don't understand how Skype worked and Zadarma does not. Customer service is there, but there is no desire to truly help you... they delivered what they promised, but it wasn't easy... Wish there was another company or product that was simple and easy...can't find.

1 April 2025
Unprompted review
Zadarma logo

Reply from Zadarma

Thank you for sharing your experience. We're sorry the porting process felt difficult and took longer than expected. While we aim to be transparent about our SMS capabilities and deliver the services promised, we understand that the verification steps and communication may have been frustrating. Your feedback helps us improve the experience. If you'd like us to review your case in more detail, please feel free to contact us at support@zadarma.com or via our ticket system.

Rated 5 out of 5 stars

From Skype to Zadarma

I used Skype prior Zadarma. I had to switch because Skype will no longer provide a foreign number. It was a little chalenging to get the transfer done. But I am so happy with the quality of Zadarma. It works way better than Skype used to do. And it's also even cheaper. So I am thrilled!

1 April 2025
Unprompted review
Zadarma logo

Reply from Zadarma

Thanks so much for your feedback!
We're really glad to hear you're happy with the move to Zadarma. It's great that the quality and price are working out even better for you. If you ever need help with anything, just reach out to us!

Rated 4 out of 5 stars

Good service & support

Despite what other people have said here, i really like the service i get from Zadarma, most issues are caused by user error. They enabled me to a UK mobile number delivered to my phone without using a SIM card slot, so i can put a local SIM in Spain in my phone. Support has always been good and fast.

28 March 2025
Unprompted review
Zadarma logo

Reply from Zadarma

Thank you for the kind words!
We’re really glad to hear that our service has been helpful and that support met your expectations. Your setup sounds like a smart use of our virtual numbers — we appreciate you sharing your experience!

Rated 1 out of 5 stars

Scammers, avoid at all costs

Scammers, their numbers do not qualify for whatsapp and various other services. You will be stuck with no access and a bill to pay. Customer care is laughable and will not get you anywhere. Avoid at all costs, there are other better and transparent providers out there that help your business grow.

26 March 2025
Unprompted review
Zadarma logo

Reply from Zadarma

Thank you for your review. We’re sorry our service didn’t meet your expectations. Please note that WhatsApp and some other third-party platforms may not support virtual phone numbers — we’ve outlined this in detail here: zadarma.com/en/blog/whatsapp-for-business.

Our support team is always ready to help within the scope of what’s technically possible, and we appreciate your feedback.

Rated 1 out of 5 stars

False description of the services

I wanted to buy a virtual number from them. The website mentioned the price is 2 USD per month, INCLUDING TAXES, and that voice calls will be connected immediately. In reality, I was charged an extra 20% VAT, and it takes 2 work days to go through a verification process. The information on their website is misleading and false. I sent screenshots to the service via chat, and they said they would check it.

The connection process is highly incomprehensible. Verification is impossible via the computer because they need super clear pictures for it. But I was unable to enter the app to use my good smartphone camera because they needed special login info that I didn't have. The customer service people answer fast, but they only send you useless links to the website instead of explaining how to register. It's like talking to a bot.

Eventually, after wasting half a day trying to understand how to register, talking to service, and waiting for a verification (that never came), I asked for a refund of what I had paid and decided to connect to another service provider. If you plan on registering with them better clear a full day of work for this horrible process and be prepared for surprises and extra charges.

Addition: The website was always opened in the same country and without a VPN. It also showed me the same information when I re-entered the website from a link sent by the service representative. Additionally, on the company homepage, it is written "5 minutes to set up any service," which is clearly false. I wish there was a way to add screenshots to reviews.

26 March 2025
Unprompted review
Zadarma logo

Reply from Zadarma

Thank you for your feedback.

It seems there was a mismatch between the country from which the website was initially accessed and the country used during registration. When the site is opened from a country where VAT is not applicable, prices are displayed without tax and typically in relevant currency. However, once you register from within the EU, VAT is automatically added according to local tax regulations. If the site is accessed directly from the EU, prices are shown in EUR (unless another currency is selected) and include a note about VAT.

Regarding the verification process and login difficulties — we understand how frustrating that must have been. Your comments have been forwarded to the relevant team for review and improvement. If you ever decide to give it another try or need any further assistance, feel free to contact us via https://my.zadarma.com/tickets/ or email us at support@zadarma.com.

Rated 1 out of 5 stars

Zadarma is a scam

Zadarma is a scam. I'll explain why. One of their conditions is that "no unauthorized manipulations of the image is allowed". This is so they can on-sell the information to third parties. I had written "Zadarma" and "JUMIO" (their billing company) on the scan to circumvent this - nothing obscured at all - just a text overlay in empty spaces - and they refused my application. Secondly – they said “submit an ID or passport”. I sent a very clear double-sided scan of my driver’s license. They then said; “No – we need your passport”. Instead of just asking for the passport up front, they are milking every ID out of you, one at a time. Did I mention they are based in Bulgaria? Scam, scam, scam. Submitted the exact same scan to another company. No problem.

EDIT: 1. "ID depends on verification needs". Fine, so tell us upfront. It is a common complaint against ZADARMA that they keep moving the goalposts. Create a page that tells which customers what ZADARMA will and won't accept.
What I didn't say above is that I also had to send a 'selfie' of both ID and my face. It is very hard to fake a hard license and my actual face, but that wasn't enough apparently.

2. "won't accept additional markings or text overlays". A criminal is going to alter a photo, change a date, add a number in a scan. Or just simply find one on the web. There are millions on there.
You know what would drastically cut identity theft? If you handwrote "ZADARMA" or whatever in a blank space. Hello? Can you not tell the difference between obvious handwriting and an altered or obscured detail on the ID? Calilio and Call.com could. A scam factory is the only explanation fitting the evidence.

24 March 2025
Unprompted review
Zadarma logo

Reply from Zadarma

We're sorry you had a negative experience. For security and compliance reasons, we cannot accept documents with additional markings or text overlays — this is a standard practice and not related to any third-party use. Additionally, the type of ID required may vary depending on account verification needs, and we aim to ensure all documents meet regulatory standards. We understand this may be frustrating and appreciate your feedback. If you'd like to discuss the situation further, feel free to contact us at support@zadarma.com.

Rated 1 out of 5 stars

Useless

The verification of documents took 2 days to process, just to fail because of "bad image quality". So I have to wait again now. Most other sites finish verification in a few seconds to minutes.

Also I already paid for the service before the verification, and the time period has already started, so I am paying for a service I cant use.

The customer support was far beyond useless and could not assist me in any way.

21 March 2025
Unprompted review
Zadarma logo

Reply from Zadarma

Thank you for your feedback. We understand how frustrating delays in verification can be. Unfortunately, we couldn’t accept the uploaded document due to image quality — clear scans are essential for compliance. Activation only starts after successful verification, even if the number is pre-ordered. Our support team is here to help and guide through the process at any time.

Rated 1 out of 5 stars

AWFUL!!!!

I bought an UK number (I paid a year) and I thought the prices would be accessible

but I made a mistake.

1. The uk number is not working and what I got was a Poland number. This is not what I bought

2. I did not receive the "free minutes" included in my plan

Do not waste your time and money!

10 March 2025
Unprompted review
Zadarma logo

Reply from Zadarma

Greetings!
It sounds like there may have been an issue with the number assignment or plan activation, and we’d like to resolve this for you as soon as possible. Please reach out to our support team at support@zadarma.com, and we’ll investigate the situation to make things right.

Rated 4 out of 5 stars

Cheap and nasty

I now use Zadarma regularly with no problems
PREVIOUS 2025
the service is great technically and the prices are good but customer service are horrible. I get the feeling they can solve problems but for some reason don't want to, they prefer insulting customers as if we are stupid.

8 March 2025
Unprompted review
Zadarma logo

Reply from Zadarma

Dear David,
We’re sorry for the inconvenience you experienced. On Saturday, March 8, at the time of your request, routing was adjusted.

If you're still facing issues with outgoing calls, please open a support ticket https://my.zadarma.com/tickets/ and provide fresh examples (no older than 48 hours) of the problem calls. Our team will run tests, and if an issue is identified, we’ll work on resolving it as soon as possible.

Thank you for your patience, and we appreciate your feedback!

Rated 1 out of 5 stars

terrible service

terrible service, after wasting my time for 7 days working on verification they sent me a notice that my account Is canceled, when I asked why they responded "Unfortunately"

7 March 2025
Unprompted review
Zadarma logo

Reply from Zadarma

We're sorry for any frustration caused. To ensure security and compliance, all documents go through a thorough verification process following our guidelines. If an account does not meet the necessary requirements, we are unable to proceed with activation. If you believe there was a misunderstanding, please contact our support team at support@zadarma.com, and we’ll be happy to review your case.

Rated 1 out of 5 stars

Beware

Like many others have noted in their reviews this company will simply take your money and then block your account. I had mistakenly assumed that perhaps these other users had failed to provide the right ID. Nonetheless, despite completing the verification process including submitting a passport copy alongside a photo of me personally holding my passport. My account was automatically blocked 2 days later. Please note that not only will you lose money with this company but more importantly you may end up losing a great deal of time setting up systems to use your number only to have it blocked. I have of course attempted to contact support multiple times to resolve this, but again as others have pointed out the customer service is both rude and unhelpful. I do not often post reviews but felt compelled to do so in this case. I would strongly advise not using this company, you are basically giving them your identity and banking details for nothing in return. And, as a Bulgarian based company you have no recourse whatsoever.

27 February 2025
Unprompted review
Zadarma logo

Reply from Zadarma

We regret your bad experience with our service. We strive to provide quality service to all our customers.
To review your case and offer a solution, please contact us at support@zadarma.com from your registration email address.

Rated 2 out of 5 stars

Their customer service is rude

Their customer service is fast but rude, they only send you links from their web page and tell you to "read" or stuff like "Everything is in the page, what do you don't understand?". Also I think it's interface is 0 user friendly so I needed a lot of help to learn how to use it and at the end the service wasn't what I needed.

26 February 2025
Unprompted review
Zadarma logo

Reply from Zadarma

We're sorry to hear about your negative experience with our service. Most of the services we provide must be configured by the user, as we do not offer remote setup.
To assist you, we provide detailed guides with step-by-step instructions https://zadarma.com/en/support/instructions/. If you encounter any difficulties after following the instructions, please contact our support team at support@zadram.com.

Rated 1 out of 5 stars

BAIT AND SWITCH

I have a free version of the CRM and have been using it for about two months. Today, I tried to log-in and the system has locked me out because, according to the help team, "You have not paid for the PBX."

Nowhere in their terms of service does it say I am required to pay for PBX to use the free version of their CRM.

18 February 2025
Unprompted review
Zadarma logo

Reply from Zadarma

Thank you for your feedback!
Our CRM and PBX services are free; however, after a two-month trial period, maintaining access requires an account balance top-up. This balance can be used for any paid services, such as calls or virtual numbers, and must be topped up at least once every three months. This information is available on our website.
If you need assistance with your account or have questions about our services, please contact our support team—we're here to help!

Rated 1 out of 5 stars

Zadarma: Pathetic customer service, Unreliable service, Unecessarily complex UI,

Avoid Zadarma unless you are a masochist!
1. Pathetic customer service! Use this company if you want to waste hours of your time with indifferent staff who don't understand English and can't be bothered to assist.
2. Unecessarily complex user interface! Use this company if you want to waste more hours of your time trying to figure out how to configure their systems.
3. Unreliable service! Use this service if you want to force your customers to make several attempts to call your number which doesn't work.

11 February 2025
Unprompted review
Zadarma logo

Reply from Zadarma

At Zadarma, we prioritize call quality above all else. Our infrastructure is built on multiple data centers worldwide, using only top-tier communication channels to ensure stable and high-quality connections.

To better understand your situation, please provide your account details via support@zadarma.com or https://my.zadarma.com/tickets/, and we’ll thoroughly check your connection. Our team is always ready to assist and ensure the best experience possible.

Rated 1 out of 5 stars

Terrible VOIP

Zadarma's reliability of their phone servers have been terrible... The loose connection and disconnect the call all the time. Often I'll end up hearing some random person on the other end.

10 February 2025
Unprompted review
Zadarma logo

Reply from Zadarma

Thank you for your feedback. As far as we can see, you provided examples of calls to a specific destination, and our specialists have already responded to you regarding this issue.

We haven’t received any other reports from you, but if the problem persists, please reach out via a support ticket at support@zadarma.com or contact us via live chat on our website zadarma.com. We’ll be happy to investigate further.

Rated 1 out of 5 stars

Not reliable, can't recommend

Switched there after Skype stopped their old service... However Zadarma's service and the reliability of their phone servers have just been abysmal... often just loosing the connection or even disconnecting mid call (despite my internet connection being flawless)...

6 February 2025
Unprompted review
Zadarma logo

Reply from Zadarma

We’re sorry to hear about your experience with our service. Reliable communication is our top priority, and what you described is not the experience we want for our customers.

Our support team would love to investigate and help resolve any connection issues you’re facing. Please reach out to us at support@zadarma.com or via live chat on our website—we’re here to assist you!

Rated 1 out of 5 stars

Ask for bunch of docs stay away and…

Ask for bunch of docs stay away and constantly deny them

28 January 2025
Unprompted review
Zadarma logo

Reply from Zadarma

We understand your frustration, but please know that our verification process is fully compliant with legal requirements. We only request the necessary documents to ensure a secure and reliable platform for all users. If you need further clarification or assistance, please reach out to our support team—we’re happy to help.

Rated 1 out of 5 stars

Scammers !

Scammers !! Beaware !! You will not get the number, they will take your money and you will not be able to 'verify yourself', and this is after they collect your passport copy (guess where those crooks can use it !!). Never ever use this platform, AVOID !!!

13 January 2025
Unprompted review
Zadarma logo

Reply from Zadarma

We are sorry to hear about your experience. We take verification seriously to ensure a secure platform for all users. Unfortunately, the documents provided did not meet the required standards for verification, and we were unable to proceed further. Additionally, as we have not received the necessary identification to resolve the issue, we are unable to provide more specific details.

If you need further assistance or clarification, please feel free to contact our support team.

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