Skip to content
ToolGPA

JustCall alternatives · Business Phones

Free alternatives to JustCall

JustCall has no free plan. 4 of the 44 other business phone systems in this directory are free or have a free plan.

JustCall is a paid product with a free trial, starting at $29 per user / month, billed annually ($39 billed monthly). 1 of them has no paid plan at all; the rest pair a free plan with paid ones.

4 tools · Listings checked up to Nov 12, 2026 · Where the facts come from

How each one differs from JustCall

  1. Sonetel

    Business phone numbers in any country with an app and web app

    What is free: Basic plan has no monthly fee: pay as you go for a number subscription from $1.79 a month and for calls, with SMS-to-email.

    • Sonetel starts at $9.95 per user / month, billed annually ($13.95 billed monthly). JustCall starts at $29 per user / month, billed annually ($39 billed monthly).
    • Sonetel has a free plan. JustCall does not, though it has a free trial.
    • Only JustCall lists macOS and Windows apps.
    Sonetel pricing and details

  2. Zadarma

    Cloud PBX and virtual numbers in 110+ countries, free to start

    What is free: Standard plan: $0 a month for up to 5 PBX users, with calls, numbers and extra PBX features paid for separately as used.

    • Zadarma starts at $39 per month for up to 10 users, billed annually ($44 monthly). JustCall starts at $29 per user / month, billed annually ($39 billed monthly).
    • Zadarma has a free plan. JustCall does not, though it has a free trial.
    • Only Zadarma lists a browser extension.
    • Zadarma also covers AI support agent and call tracking.
    Zadarma pricing and details

  3. Google Voice

    Google's phone number service for calls and texts on any device

    What is free: Google Voice for personal Gmail accounts, US only: one number, unlimited US calls and texts, and voicemail transcripts. Needs an existing mobile number.

    • Google Voice starts at $10 per month for one user; team plans $10 per user / month plus Workspace. JustCall starts at $29 per user / month, billed annually ($39 billed monthly).
    • Google Voice has a free plan. JustCall does not, though it has a free trial.
    • Only JustCall lists macOS and Windows apps.
    Google Voice pricing and details

  4. FreePBX

    Open-source web interface for managing an Asterisk phone system

    What is free: Everything. There is no paid plan.

    • FreePBX is free. JustCall starts at $29 per user / month, billed annually ($39 billed monthly).
    • FreePBX has a free plan. JustCall does not, though it has a free trial.
    • Only JustCall lists macOS, Windows, iOS and Android apps.
    • FreePBX is open source and self-hostable, according to its own site.
    FreePBX pricing and details

Common questions

Is there a free alternative to JustCall?

Yes. Sonetel, Zadarma, Google Voice and FreePBX are free or have a free plan.

Does JustCall have a free plan?

JustCall has no free plan. JustCall is a paid product with a free trial, starting at $29 per user / month, billed annually ($39 billed monthly).

When was this checked?

Each listing shows its own date. On this page they run from Oct 17, 2026 to Nov 12, 2026. Vendors change prices and plans without notice, so confirm on their site before you buy.

This page is built from the listings. A tool is here because its listing says so, and the order is how close each is to JustCall: the alternatives its listing names first, then the tools that share the most features with it.