10 Best Zadarma Alternatives in 2025

Businesses look for replacements to Zadarma due to its lack of advanced features, limited integrations, inconsistent support, and a complex pricing model.

• Limited Advanced Features: Zadarma lacks AI tools like call transcription, sentiment analysis, and automated summaries.
• Scalability Challenges: It works for small teams but doesn’t scale smoothly for larger offices or call centers handling high call volumes.
• Integration Gaps: Zadarma offers fewer integrations with popular CRM and business tools compared to other providers.
• Customer Support Limitations: Users often face slow response times, which can be risky for critical business communication.
• Complex Pricing Structure: Its add-on-based pricing is harder to understand, unlike competitors with simple bundled plans.

Calilio, Aircall, 3CX, JustCall, Dialpad, GoTo Connect, RingCentral, Nextiva, OpenPhone, and Vonage are the 10 best alternatives to Zadarma.

Calilio is one of the top Zadarma alternatives for businesses looking for a more intuitive and scalable cloud-based phone system. While Zadarma offers a telephony platform with free PBX functionality, many users find its interface complex and difficult to navigate. In contrast, Calilio is built with a clean and simple dashboard that makes it easy to manage calls.
Calilio also offers AI-powered call reporting after every call. These reports include transcripts, summaries, and sentiment analysis, which go far beyond the basic analytics provided by Zadarma.

Another major advantage of Calilio is its transparent pricing model. Instead of unpredictable per-minute charges like Zadarma, Calilio uses a straightforward monthly plan that starts with $15 per month. This makes it easier for businesses to plan, scale, and stay on budget.

Pros

• Equipped with AI-powered tools
• User-friendly interface
• Transparent pricing

Cons

• Lack of video conferencing
• Unlocking the full value of the AI features may involve a learning period

RingCentral is a powerful Zadarma alternative for businesses that need a reliable and enterprise-ready phone system. Many Zadarma users report technical issues like dropped calls or delayed support. RingCentral solves this with a 99.999% uptime guarantee, making sure your communication is never interrupted. It also provides 24/7 customer support through phone, chat, and email, so help is always available.
Unlike Zadarma’s basic VoIP setup, RingCentral offers a complete communication platform. It brings together phone, video meetings, team messaging, SMS, and even contact center tools in one place. This improves teamwork and operations, ultimately contributing to enhancing customer service.

Pros

• Reliable call performance with clear audio
• Seamless integration with popular business tools
• Packed with robust call management features

Cons

• Occasional portal/API issues
• Additional features can make the service expensive

Dialpad is an AI-powered communications platform that delivers far more than Zadarma’s basic call feature. The platform uses real-time AI transcription and live coaching to highlight key points and suggestions during the call. This turns every conversation into a chance to improve sales and customer support.
Dialpad, with a simple design that works smoothly on desktop and mobile, is also easier to set up than Zadarma. Plus, its integration option with Google Workspace, Microsoft 365, Salesforce, and HubSpot helps to improve your team’s productivity.

Pros

• Supports remote work setups and AI intelligence
• Seamless integrations with Google Workspace and Slack
• Strong disaster recovery support

Cons

• Occasional lag in response times during peak hours
• Reporting features lack depth and customization

Nextiva is a trusted Zadarma competitor with dependable support and a communication platform. Many Zadarma users report slow responses and limited support channels, which can leave businesses waiting during critical issues. Nextiva, on the other hand, resolves any issues instantly with its highly rated support team, available 24/7 by phone, chat, and email.
Beyond support, Nextiva also provides an all-in-one solution that combines phone calls, video meetings, team messaging, surveys, and even a built-in CRM. This makes it more versatile than Zadarma, which mainly focuses on calling and basic PBX features.

Pros

• Clear voice and video quality
• 24/7 customer support
• Affordable and scalable

Cons

• Some features are locked in higher-tier plans
• Expensive for small firms

For businesses that need a phone system that works wherever they go, OpenPhone is a practical Zadarma alternative. Zadarma users often struggle with a desktop-heavy setup, which can be restrictive for remote or mobile teams. OpenPhone takes a mobile-first approach, giving you calling and texting tools that work seamlessly on smartphones and tablets.Moreover, OpenPhone makes communication flexible with calling, texting, and contact management all in one app. Contrary to Zadarma’s limited SMS features, OpenPhone fully supports SMS and MMS, making it simple for teams to connect with customers the way they prefer.

Pros

• Shared phone numbers for team collaboration
• AI-powered assistant for call handling
• Works seamlessly across browsers and mobile

Cons

• Users report experiencing dropped calls and missed rings
• Irresponsive customer support occasionally

Aircall is one of the best Zadarma alternatives for companies that rely heavily on CRM and helpdesk tools. While using the Zadarma platform, users often face compatibility issues and limited third-party integrations. Aircall addresses this gap with seamless, built-in integrations for tools like Salesforce, HubSpot, Zendesk, and Intercom.Designed for sales and support teams, Aircall also makes workflows faster and more efficient. With features like call tagging, analytics, and automatic call logging, teams can stay organized without extra work.

Pros

• Automatic call tags and call notes
• Easy to set up
• Reliable call quality

Cons

• No unlimited calling on lower-tier plans
• Occasional mobile app glitches

Unlike Zadarma, where users often face connectivity issues and dropped calls, GoTo Connect delivers stable, enterprise-grade performance backed by a global infrastructure. This ensures clearer and reliable calls every time.In addition to dependable calling, GoTo Connect offers video meetings, chat, and call management tools in a single platform. So, for teams that want dependable call quality along with a centralized communication platform, GoTo Connect is a suitable option compared to Zadarma.

Pros

• All-in-one platform for calls, meetings, and messaging
• Enterprise-grade security with regulatory compliance support
• Mobile and desktop apps for hybrid teams

Cons

• Limited customization for call flows
• Lower-tier plans lack advanced analytics

3CX is a powerful Zadarma alternative for businesses that want more flexibility and control over their phone system. While Zadarma is entirely cloud-based, 3CX gives companies the option to run their system on-premises or in the cloud, depending on their needs. This makes it a great fit for organizations that want customization instead of a one-size-fits-all service.Supporting SIP trunks, VoIP gateways, and a wide range of hardware, 3CX also integrates smoothly with existing setups. It’s especially useful for businesses with compliance needs or specific IT requirements, as it adapts well to different infrastructures.

Pros

• Multi-platform support
• Equipped for both remote access and on-premise use
• Quick installation and simple setup

Cons

• Notifications may occasionally lag on mobile
• The free plan has limited users

JustCall is a strong Zadarma alternative for businesses that want an easier setup and better tools for sales and support. While Zadarma can feel confusing to set up and has fewer integration options, JustCall offers a user-friendly interface and connects with 100+ business apps, including popular CRMs like HubSpot, Zoho, and Pipedrive.From auto-dialing prospects to running SMS campaigns and logging every interaction automatically, it’s designed to reduce manual work and increase efficiency. Zadarma, on the other hand, lacks these sales-specific capabilities, which can limit productivity for high-volume teams.

Pros

• Delivers smart automation and real-time AI-powered insights
• Designed for adaptable workflows and sales-specific tasks
• Ideal pricing model for startups and small teams

Cons

• The user interface can feel confusing for new users
• Support replies can be slow at times

Vonage is a smart Zadarma replacement for businesses that need more control and flexibility. While Zadarma mainly offers fixed features, Vonage provides customizable APIs for voice, SMS, video, and verification.
It is ideal for businesses that want to create custom experiences. Its developer-friendly platform lets you build voice, SMS, and video into your own apps - something Zadarma doesn’t offer at the same level. Whether you need simple international calling or a fully customized global communication strategy, Vonage provides the tools and performance to make it happen.

Pros

• Team messaging and collaboration tools across all plans
• Stable VoIP experience with minimal disruptions
• Strong data protection through encryption and security features

Cons

• Unreliable MMS messaging
• Lacks reliable contact syncing between devices and accounts

[We created this list of the 10 best Zadarma alternatives in 2025 by carefully reviewing information from official websites, pricing pages, and product feature lists of each provider. We also looked at user reviews on trusted platforms like G2, Capterra, and Trustpilot to understand real customer experiences.]

Choosing a suitable phone system is not just a matter of cost—it's reliability, premium features, and scalable support as well. While Zadarma has served many small teams, its basic AI tools, complicated price plan, and less stable integrations often prompt businesses to seek an alternative.

The good news is that Zadarma alternatives provide far more. From AI-driven call analytics to effortless CRM integration, options like Calilio, RingCentral, and Dialpad offer smarter solutions.

Among them, Calilio stands out by combining advanced telephony features with AI-powered capabilities. It provides real-time call transcription, sentiment analysis, and smart call summaries, helping businesses understand every conversation and make data-driven decisions.