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Zoiper

Cross-platform SIP softphone with secure voice, video, messaging, and AI features

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  • Overview
  • Features
  • Pricing
  • Pros
  • Cons
  • Reviews

Zoiper Overview

  • Updated March 1, 2026

Zoiper is a widely used cross-platform VoIP SIP softphone supporting voice, video, fax, presence, and instant messaging. Available on desktop and mobile platforms, it emphasizes high call quality, low resource usage, and strong security through TLS, SRTP, and ZRTP encryption.

Zoiper integrates with major PBXs and CRMs, making it suitable for individuals, businesses, and call centers seeking flexible, provider-agnostic VoIP communications.

Key Features

  • Cross-platform support: Windows, macOS, Linux, Android, iOS
  • HD voice and video calling with advanced jitter buffer
  • Military-grade encryption (TLS, SRTP, ZRTP)
  • AI-powered call transcription and summaries (Zoiper 5)
  • CRM and Outlook address book integration
  • Call recording, call transfer, conferencing
  • Automatic and remote provisioning with QR codes
  • Low CPU and memory footprint
  • Compatible with major SIP providers and PBXs

Price

Plan Price
Zoiper Free $0 (Free)
Zoiper 5 PRO (Desktop: Windows, macOS, Linux) $59.95 (One-time purchase, Per License, No Subscription)
Zoiper Premium (iOS App) $4.99 (One-time purchase via App Store)

Price details: https://www.zoiper.com/en/shop/buy/zoiper5

Pros

Competitor

Pros
Bria (CounterPath) Compared to Bria, Zoiper is significantly more cost-effective due to its one-time license instead of recurring subscriptions. Zoiper is also lighter on system resources, easier to deploy across multiple platforms, and better suited for users who want a simple SIP softphone without advanced UC complexity.
Linphone Zoiper offers a more polished user interface and easier setup than Linphone, especially for non-technical users. Built-in provisioning, QR-code configuration, and CRM integrations make Zoiper more practical for business environments, while Linphone often requires manual configuration and deeper SIP knowledge.
MicroSIP Compared to MicroSIP, Zoiper delivers broader functionality, including video calls, encryption options (TLS, SRTP, ZRTP), and CRM integrations. Zoiper’s cross-platform availability and professional support make it more suitable for teams and enterprises rather than individual or basic users.
X-Lite / Bria Solo Zoiper provides a perpetual license model, while X-Lite/Bria Solo focuses on subscriptions or limited free tiers. Zoiper also supports more advanced provisioning, call center features, and encryption options, making it a stronger choice for SMBs and call centers.
RingCentral Softphone Unlike RingCentral’s bundled softphone, Zoiper works independently with almost any SIP provider or PBX. This flexibility allows businesses to avoid vendor lock-in, reduce costs, and integrate Zoiper into existing VoIP infrastructures without switching telecom providers.

Cons

Competitor

Cons
Bria (CounterPath) Compared to Bria, Zoiper lacks some advanced unified communications features such as built-in team messaging ecosystems and native video conferencing services. Bria may be a better fit for enterprises seeking an all-in-one UCaaS experience rather than a pure SIP softphone.
Linphone Linphone is fully open source, while Zoiper is proprietary. Organizations that require source code access, extensive customization, or community-driven development may find Zoiper limiting despite its ease of use and commercial support.
MicroSIP MicroSIP is completely free, whereas Zoiper’s most useful features are locked behind the paid PRO license. For very small teams or individual users with minimal requirements, MicroSIP may be more appealing due to zero cost.
X-Lite / Bria Solo X-Lite and Bria Solo offer tighter integration with CounterPath’s ecosystem and documentation. Zoiper’s interface, while powerful, can feel complex to new users, especially when configuring encryption, provisioning, and multiple SIP accounts.
RingCentral Softphone RingCentral provides a fully managed cloud phone system with support, analytics, and compliance tools. Zoiper requires users to manage their own SIP providers and PBX, which may be a drawback for businesses seeking a fully managed, turnkey solution.

Verified Customer Reviews

  • Trustpilot Review (Rating: 2/5): Several users criticize Zoiper for “hopeless support” and tickets that go unanswered for months, including one reference to ticket #644807 for Zoiper Premium on iPad. Others report the app gets stuck on “registering,” keeps ringing without showing an answer screen, or crashes with a “Zoiper 5 has crashed!” message, leaving it usable only as an answering service via email notifications.
  • Software Advice Review (Rating: 4.3/5): Zoiper earns praise for simple SIP account configuration, solid call quality, and a setup process that feels quick and uncomplicated. One reviewer notes the VoIP softphone dialpad is easy to miss, and another mentions developers sometimes take too long to patch issues, even for premium users, though they add that such disruptions rarely occur.
  • google.com Review: One Android user highlights smooth hand‑off from WiFi to cellular during calls, wide codec support, and responsive performance with FreePBX on Windows and Android. Another reports constant registration failures after a Samsung S25 update and frustration that desired features required an additional premium subscription beyond the initial paid plan.
  • Capterra Review (Rating: 4.3/5): An Asterisk specialist calls Zoiper an “excellent softphone” that supports daily tasks and personal use, though they want version 5 to allow joining more than one person in a call on the free plan. A technical support professional values caller ID display, call transfer, DND, and strong call clarity even on the free version, but points out that some features remain disabled unless users upgrade.