The Zadarma Insider’s Guide
Everything we know about Zadarma in one document: what it costs, its grades, getting a refund, getting help and what else to look at. Read it here, or keep a copy.
Zadarma
The Insider’s Guide
Cloud PBX and virtual numbers in 110+ countries, free to start
Every plan, grade, refund rule and rival among business phone systems, read from Zadarma’s own pages.
Made by Zadarma · checked Nov 12, 2026 · toolgpa.com
Contents
- 01WelcomeWhat it is, who it suits, its grades and the ten things to know first
- 02What it costsEvery plan, the free plan, ways to pay less and how prices have moved
- 03What it doesIts main features, where it runs, what it works with and who makes it
- 04Where it standsIts grades against its category, and whether to keep it or make your own
- 05The alternativesThe tools it is most often weighed against, side by side
- 06Quick answersThe questions people ask about it, each answered in a line or two
- 07About ToolGPAWho made this guide, what else is on the site, and how to cite it
ToolGPA put this guide together from Zadarma’s own pages, its app-store listings and our grades. Every fact in it is on Zadarma’s page too, where it is kept up to date. Checked Nov 12, 2026.
Part 01 · Overview
Welcome
What it is, who it suits, its grades and the ten things to know first
3.2
GPA, above 77 of the 77 other business phone systems we grade
Zadarma is a cloud phone system provider offering a free cloud PBX, virtual numbers in over 110 countries, SIP trunking, SMS and a free Teamsale CRM. Calls run through apps for Windows, macOS, iOS and Android, a browser webphone, or SIP phones, and the paid plans bundle minutes, numbers and AI features.
To get you started, here are 9 things to know about Zadarma, taken from its own pages and our grades.
Numbers, extensions and call routing all need setting up.
- 1
Best for a small team wanting a free cloud phone system
The free plan includes no minutes or numbers, so those are charged as you use them, and prices change with the region you pick.
- 2
Paid plans start at $39 a month
As its pricing page puts it: $39 per month for up to 10 users, billed annually ($44 monthly).
- 3
There is a free plan
Standard plan: $0 a month for up to 5 PBX users, with calls, numbers and extra PBX features paid for separately as used.
- 4
It runs on 5 platforms
Web, macOS, Windows, iOS and Android, with a browser extension too.
- 5
Free cloud PBX
Voice menus, call routing, call recording, working-hours rules and extensions for up to 5 users at no monthly charge on the Standard plan.
- 6
Numbers in 110+ countries
Landline, mobile, national and toll-free virtual numbers can be added, and existing numbers can be ported in.
- 7
Calling apps and webphone
Apps for Windows, macOS, Android and iOS, a browser webphone using WebRTC, a Chrome plugin and support for SIP phones.
- 8
A 3.2 GPA, above 77 of 77
That is against the other business phone systems we grade, on value, the free plan, features, ease of use and platforms.
- 9
Keep it
To replace Zadarma you would be making phone numbers and calls carried over the phone network. That is not a weekend's work, with an AI app builder or without one.
Zadarma at a glance
- Pricing
- Free plan, from $39 per month for up to 10 users, billed annually ($44 monthly)
- Free plan
- Yes
- Free trial
- None stated
- Runs on
- Web, macOS, Windows, iOS, Android, Browser extension
- Made by
- Zadarma, since 2006
- Category
- Business Phone Systems
- Our grade
- 3.2 GPA, very good
The report card
Best for a small team wanting a free cloud phone system
Zadarma is a cloud PBX with numbers in 110 countries, free for up to 5 users, with calling apps on every platform. The free plan includes no minutes or numbers, so those are charged as you use them, and prices change with the region you pick.
| Subject | Grade | Comment |
|---|---|---|
| Value for money | A | Office is $39 a month for 10 users, about $3.90 a user, under half of the $8.40 that is 60% of the $14 where business-phone tools start. The Standard plan itself is $0. |
| Free plan and trial | B | Standard is $0 a month for up to 5 users with the PBX features, and one person could live on it. Calls, numbers and some extra PBX features are paid for as used. |
| Features | B | Cloud PBX, numbers in 110+ countries, apps and a webphone, a built-in CRM, AI agent and speech analytics, and an API. Nothing in the listing is missing from a small team's phone job. |
| Ease of use | C | No store rating on record. Numbers, extensions and call routing all need setting up. |
| Platforms and integrations | A | Web, Mac, Windows, iOS, Android and a browser extension, with 6 integrations and an API. No Linux app listed. |
An A is worth 4 points, a B 3, a C 2, a D 1 and an F nothing. The GPA is the average of the five.
Who Zadarma is for
- Fits if you run a team of up to 5 and want a PBX without a monthly fee
- Works for businesses that want numbers in many countries on one account
Who it is not for
- Tight if you need minutes included, because Standard includes none and charges calls and numbers separately
- Watch out: prices depend on the region selector, and the figures here are the page's default World region
- Watch out: annual prices need yearly payment and plans cap users at 5, 10 or 20
- Skip it if you use Linux, since the calling apps page lists no Linux app
Good to know
Good for
- Small teams that want a free cloud PBX and pay only for calls
- Businesses that need numbers in many countries
- Teams already working in HubSpot or other supported CRMs
Worth knowing
- Prices depend on the region selector; the figures here are the page's default World region.
- The Standard plan includes no minutes or numbers, so calls and numbers are charged separately.
- Annual prices apply to yearly payment; the monthly figures are higher, and plans cap users at 5, 10 or 20.
- Linux apps are not listed on the calling-apps page.
Part 02 · Pricing
What it costs
Every plan, the free plan, ways to pay less and how prices have moved
$39
A month to start. There is a free plan too
Zadarma has a free plan. Paid plans start at $39 per month for up to 10 users, billed annually ($44 monthly).
Calls, numbers and some extra PBX features are paid for as used.
Standard
$0
per month for up to 5 users
Free cloud PBX with 4 voice menus, 200 MB of recording storage and 5 concurrent outgoing calls; no included minutes or numbers.
Office
$39
per month for up to 10 users, billed annually ($44 billed monthly)
2,500 free outgoing minutes, 1 virtual number, 400 speech recognition minutes, 100 AI agent minutes and 6 voice menus.
Corporation
$79
per month for up to 20 users, billed annually ($88 billed monthly)
5,000 free outgoing minutes, 2 virtual numbers, 1,000 speech recognition minutes, 200 AI agent minutes and 12 voice menus.
The free plan
Standard plan: $0 a month for up to 5 PBX users, with calls, numbers and extra PBX features paid for separately as used.
Read from zadarma.com on Nov 12, 2026.
Ways to pay less
Annual discount
Annual payment lowers plan prices
The pricing page toggle shows Office at $39 and Corporation at $79 a month with annual payment, against $44 and $88 paid monthly.
Stated on zadarma.com
Part 03 · Features
What it does
Its main features, where it runs, what it works with and who makes it
6
Places it runs: Web, macOS, Windows, iOS, Android and Browser extension
Cloud PBX and virtual numbers in 110+ countries, free to start. Here is what it does, as its own site describes it, and what it covers: public API, AI features, transcription, AI support agent, business phone line, business texting, call tracking.
Nothing in the listing is missing from a small team's phone job.
- Free cloud PBX
- Voice menus, call routing, call recording, working-hours rules and extensions for up to 5 users at no monthly charge on the Standard plan.
- Numbers in 110+ countries
- Landline, mobile, national and toll-free virtual numbers can be added, and existing numbers can be ported in.
- Calling apps and webphone
- Apps for Windows, macOS, Android and iOS, a browser webphone using WebRTC, a Chrome plugin and support for SIP phones.
- Teamsale CRM
- A free built-in CRM stores customers and makes or receives calls in the browser, with an auto dialler and bulk email.
- AI agent and speech analytics
- An AI voice agent answers and places calls from a knowledge base, and speech recognition transcribes recorded calls.
- Integrations and API
- The page cites over 20 integrations, including HubSpot, and an API for custom connections.
Where it runs
- Web
- macOS
- Windows
- iOS
- Android
- Browser extension
What it works with
- HubSpot
- Zapier
- Shopify
- Microsoft Teams
- Microsoft Dynamics
- Freshdesk
Zadarma is made by Zadarma, and has been around since 2006.
Part 04 · Standing
Where it stands
Its grades against its category, and whether to keep it or make your own
77/77
Other business phone systems it is graded above
Zadarma's GPA of 3.2 is higher than 77 of the 77 other business phone systems we grade.
It stands best on value for money (A, above 74 of 77) and worst on ease of use (C, above 11).
Its paid plans start at $39 a month, against a middle price of $19 for the category: 44 of the 49 others that charge start lower.
On features, ease of use and platforms it scores 3.0 out of 4. 6 tools score higher and cost less.
Each grade against the category
Every bar is all 78 business phone systems we grade, cut by the letter each got. Zadarma’s own letter is outlined.
- AValue for moneyAbove 74 of 77
- BFree plan and trialAbove 72 of 77
- BFeaturesAbove 54 of 77
- CEase of useAbove 11 of 77
- APlatforms and integrationsAbove 58 of 77
Price against what you get
Each dot is one of 51 business phone systems. Further left costs less; higher up scores better on features, ease of use and platforms. Zadarma is the marked dot.
What paid plans start at, a month (each step along is roughly double) →
Keep it, or make your own?
Whether this is something you could build for yourself with an AI app builder, and what you would give up.
Keep it
To replace Zadarma you would be making phone numbers and calls carried over the phone network. That is not a weekend's work, with an AI app builder or without one.
It is one of the better ones too: its GPA of 3.2 is higher than 77 of the 77 other business phone systems we grade. It costs $468 a year.
What you could not
- Phone numbers and calls carried over the phone network.
- Phone numbers that change for each visitor so every call is traced to its source.
- An AI model answering your customers from your own help articles.
- Texts from a business number, registered with the carriers.
- Speech turned into text you can trust.
- Apps for macOS, Windows, iOS and Android that stay in step with each other.
- It plugs into other products, HubSpot, Zapier and Shopify among them, and has an API.
- AI features, unless you pay a model provider for each request yourself.
- The depth: we grade its features B, which means it covers the whole job.
What this rests on. Zadarma’s listing: what it does, where it runs, what it plugs into and what it costs. It is a judgement about the kind of software this is. We have not built a replacement for it, and making your own means looking after it too. How we decide, and every tool’s verdict.
Part 05 · Alternatives
The alternatives
The tools it is most often weighed against, side by side
Sonetel, Ringover, OnSIP and CallHippo
The 4 tools Zadarma is most often weighed against, with where each one differs from it.
- 2.4GPA
Sonetel
Free plan · from $9.95/mo
Business phone numbers in any country with an app and web app.
- Only Zadarma lists macOS and Windows apps.
- Only Zadarma lists a browser extension.
- Zadarma also covers AI support agent and call tracking.
- 2.0GPA
Ringover
From $19/mo
Cloud phone system and AI call tools for sales and support teams.
- Zadarma has a free plan. Ringover does not.
- Only Zadarma lists macOS and Windows apps.
- Zadarma also covers AI support agent.
- 2.0GPA
OnSIP
From $18.95/mo
Hosted VoIP phone system with per-feature pricing.
- Zadarma has a free plan. OnSIP does not.
- Only Zadarma lists a browser extension.
- Only OnSIP lists a Linux app.
- 2.6GPA
CallHippo
Free trial · from $19/mo
Virtual phone system with regional calling plans and a dialer suite.
- Zadarma has a free plan. CallHippo does not, though it has a free trial.
- Zadarma also covers AI support agent and call tracking.
Part 06 · Questions
Quick answers
The questions people ask about it, each answered in a line or two
13
Questions, each answered in a line or two
The short version of everything above, for when you only need the answer. Each one is told in full in its part of the guide.
Is Zadarma free?
Zadarma has a free plan. Standard plan: $0 a month for up to 5 PBX users, with calls, numbers and extra PBX features paid for separately as used.
How much does Zadarma cost?
Zadarma lists 3 plans. Standard: $0 per month for up to 5 users.
What platforms does Zadarma work on?
Zadarma is available on Web, macOS, Windows, iOS and Android. It also has a browser extension.
Does Zadarma offer any discounts?
Zadarma publicly lists the following: Annual payment lowers plan prices.
Does Zadarma have a Linux app?
No Linux app was listed when its pages were read on Nov 12, 2026. Zadarma is listed for Web, macOS, Windows, iOS and Android.
Is Zadarma open source?
Zadarma is not described as open source on its own site, as read on Nov 12, 2026.
Does Zadarma have an API?
Yes. Zadarma offers a public API, according to its own site.
What does Zadarma integrate with?
Zadarma's listing names HubSpot, Zapier, Shopify, Microsoft Teams, Microsoft Dynamics and Freshdesk.
Who makes Zadarma?
Zadarma is made by a company of the same name. It dates from 2006.
What are the alternatives to Zadarma?
The closest alternatives to Zadarma in our directory are Sonetel, Ringover, OnSIP and CallHippo.
How does Zadarma compare with other business phone systems?
Zadarma's GPA of 3.2 is higher than 77 of the 77 other business phone systems we grade.
Is Zadarma good value for money?
ToolGPA grades Zadarma A for value for money. Its paid plans start at $39 a month, against a middle price of $19 for the category: 44 of the 49 others that charge start lower.
Could I make my own version of Zadarma?
To replace Zadarma you would be making phone numbers and calls carried over the phone network.
Where this guide comes from
The prices, plans, platforms and features were read from Zadarma’s own pages on Nov 12, 2026, and the grades were given on Nov 13, 2026. Graded from this listing, whose facts were read from Zadarma's own pages on 12 November 2026. Not based on using the product, and shorter than our full reviews.
Every tool we list gets five grades, A to F, each with its reason, and a GPA that averages them. How each is decided is at toolgpa.com/grades. This guide is ToolGPA’s own work; it is not made, paid for or approved by Zadarma. Prices change, so check zadarma.com before you buy.
Part 07 · About
About ToolGPA
Who made this guide, what else is on the site, and how to cite it
7,721
Tools graded, in 95 categories
ToolGPA grades software the way a school report grades a pupil: five subjects, a letter for each with the reason written beside it, and a GPA that averages them. Prices, plans and platforms are read from each maker’s own pages and dated, so you always know how fresh a figure is.
Every grade, review and ranking on ToolGPA is our own judgement. No company can pay for a grade or change one. Every tool on the site has a guide like this one, free to download and pass on. It all lives at toolgpa.com.
7,721
tools graded
95
categories
739
price changes on record
579
apps priced in 12 countries
What else is on toolgpa.com
- Zadarma, kept up to dateEverything in this guide, with prices and grades as they are todaytoolgpa.com/tools/zadarma
- How grades are givenThe rules behind every letter and every GPAtoolgpa.com/grades
- Value chartsWhat each tool costs against what it scores, for every categorytoolgpa.com/charts
- CompareAny two tools side by side, plan by plantoolgpa.com/compare
- Price changesEvery price rise and cut on record, each with its sourcetoolgpa.com/price-changes
- Prices by countryWhat apps cost on the App Store in 12 countriestoolgpa.com/prices-by-country
- Pay lessEvery public discount: yearly billing, students, nonprofitstoolgpa.com/save
- Keep or makeWhich tools are worth paying for, and which you could build yourselftoolgpa.com/keep-or-make
Scan for the live page
Prices and grades as they are today
Quoting this guide?
Please name ToolGPA and link to the live page, so readers can check the figures for themselves:
ToolGPA, "Zadarma: The Insider's Guide", checked Nov 12, 2026. https://toolgpa.com/tools/zadarma
Know someone choosing between business phone systems?
Send them this guide: toolgpa.com/tools/zadarma/guide
ToolGPA elsewhere: youtube.com/@toolgpa
See our other guides
The best-graded business phone systems after Zadarma, each with an Insider's Guide of its own.
- Business Phone Systems Insider's GuideEvery one of the 78 business phone systems we grade, compared
- Grasshopper Insider's GuideVirtual business number on your own phone, priced per account3.0 GPA
- RingCentral Insider's GuideCloud phone system with texting, fax, video meetings and team chat3.0 GPA
- Dialpad Insider's GuideAI business phone with live call transcripts and call summaries2.8 GPA
Choosing software? Every tool graded, every price dated.
Compare tools at toolgpa.com ›Everything in this guide is ToolGPA’s own summary of what Zadarma’s pages, its app-store listings and public reviews said on the dates shown. Grades are our judgement under the rules at toolgpa.com/grades. Every grade, review and ranking on ToolGPA is our own judgement. No company can pay for a grade or change one. Zadarma is a trademark of its owner, and this guide is not made, paid for or approved by Zadarma. Prices and plans change: check zadarma.com before you buy.