Zoiper

Overview

Zoiper is a VoIP softphone for voice and video calls, messaging, presence, and fax. It suits people who already have a VoIP provider or PBX and want a client across desktop and mobile devices. Its broad call-handling and contact tools are useful, but its free desktop edition is limited to non-commercial use and just one account.

Zoiper is service-independent: you bring the provider or PBX, a computer or smartphone, and an internet connection. It supports SIP, browser calling, desktop apps, and mobile apps. For more options, browse our Softphone Software list.

Key features

Call handling and communications

Call forwarding, attended and unattended transfer, auto-answer, recording, and SIP conferencing make Zoiper more capable than a basic dialer. Voice and video calling are joined by messaging, presence, and fax; business SMS is also listed. That breadth may suit mixed personal and business workflows, though the free desktop plan's non-commercial restriction rules it out for work.

Security, contacts, and CRM

Zoiper 5 PRO lists TLS, SRTP, and ZRTP encryption protocols for voice, video, and chat. Contact options include Outlook and macOS Address Book integration, LDAP contacts, and CSV import. Click-to-dial CRM integrations include Vicidial, CallPro, Nimble, Freshdesk, and Salesforce, a practical advantage for users who want calling alongside customer records.

Provisioning and transcription

Zoiper Biz provisioning remotely automates user configuration, making it relevant to VoIP providers and call centers managing deployments. A built-in Banafo integration can transcribe recorded calls and produce titles, summaries, classifications, and extracted entities. These tools broaden Zoiper's business reach, but the listed feature set does not establish which plan includes them.

Pricing

Zoiper combines a free edition with separate desktop PRO and mobile team licensing. The plans differ by use case and license model, so compare the device, seat, and commercial terms before committing.

The free plan's one-account, two-line cap and non-commercial terms make it a personal option, not a low-cost business tier. PRO avoids a recurring desktop subscription through a one-time payment, but a license covers only one seat and operating system, and only one license reset is allowed each week. Mobile team licensing requires at least 10 users and sales arrangement, so it is not a straightforward individual mobile upgrade.

Platforms

Zoiper 5 desktop is available for Windows, Mac, and Linux; mobile apps cover Android and iOS. Browser calling is also listed. The desktop PRO license is tied to both seat and operating system, so users switching systems should account for that constraint.

Who it's for

Zoiper is a sensible choice for people with an existing VoIP provider or PBX who want call controls, contact integrations, and clients spanning major desktop and mobile platforms. Its CRM click-to-dial options and remote provisioning are especially pertinent to business calling and managed deployments. It is a poor fit for anyone seeking a standalone calling service, or for commercial desktop users expecting the free edition to cover their work.

Pros and cons

• Pros: Calls, messaging, presence, and fax sit alongside call forwarding, transfers, auto-answer, recording, and SIP conferencing, giving users substantial communications coverage in one softphone.
• Pros: CRM click-to-dial integrations and contact imports can connect calling to existing customer and address-book workflows.
• Pros: A one-time desktop PRO license is perpetual, which may suit users who prefer not to pay a recurring desktop fee.
• Cons: Zoiper depends on a separate VoIP provider or PBX and an internet connection; it is not a calling service by itself.
• Cons: The free desktop edition is non-commercial and capped at one account and two lines, limiting its usefulness for work or heavier use.
• Cons: PRO is licensed per seat and operating system, with just one reset allowed weekly, which constrains license flexibility across devices.
• Cons: Mobile team licensing starts at 10 users and is arranged through sales, making it a less direct option for a single mobile user.

Alternatives

Choose Blink if you want a free desktop SIP softphone for Linux, Mac, or Windows; its use requires a SIP account. Consider Linphone if open-source software, GNU GPLv3 project integration, or a broader set of platform options matters more. Siperb Mobile Softphone has a free Personal plan with limited storage, seven-day SIP trace and registration activity logs, community support, and no technical support, so it may suit someone prioritizing a free entry point and willing to accept those limits.

SipPulse Softphone offers a free app plan for iOS, Android, Windows, and Linux with unlimited users and installations. MicroSIP is a free GPL v2 Windows desktop SIP softphone, with a custom-branded build starting from €150, paid once. Softphone.Pro is an alternative for readers seeking a product with a free trial rather than a free plan. SessionTalk Softphone has a Teams Phone plan at $20 a month with five seats included and $3 per extra seat, which may suit teams looking for seat-based monthly pricing. Browser Phone is a free, open-source project for web or self-hosted use.

Verdict

Choose Zoiper if you already have VoIP service and want a cross-platform softphone with substantial call controls and useful contact or CRM connections. The one-time desktop PRO license is its clearest paid option for an individual desktop user. Look elsewhere if you need a provider bundled with the app, commercial use without a paid desktop license, or more flexible seat and operating-system licensing.