Guide to Alternatives

Alternatives to Viber for International Calls

Place the call from your browser in seconds. Nothing to install, and outbound calls need no phone number.

Product facts

  • Outbound: No dedicated number required.
  • Inbound: Requires US/Canada digital number ($2.14 to $5/month).
  • No apps: Works in Chrome, Safari, Edge, Firefox.

Product facts: Viber Alternative

  • Outbound calling: Place calls worldwide to landlines and mobiles without a dedicated number.
  • Inbound calling: To receive calls in your browser, a unique US or Canada digital number is required ($2.14 to $5/month).
  • No apps needed: Works entirely in Chrome, Safari, Edge, or Firefox.
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Compare Popular Alternatives

Overview of strengths and limitations so you can choose what fits your use case.

WhatsApp

App-to-app calling with wide global reach and end-to-end encryption for voice and video. Best for personal calls between users.

  • Pros: Encrypted, widely used, supports voice and video
  • Cons: Cannot call regular phone numbers without PSTN gateway; requires app

Skype

Supports app-to-app calls and calling real phone numbers via a PSTN gateway. Works on desktop, mobile, and web.

  • Pros: PSTN calling available, browser and app support
  • Cons: App required for best experience, features vary by region

FaceTime

Great for high-quality audio and video between Apple devices. Not cross-platform for PSTN calls.

  • Pros: Excellent quality on Apple devices
  • Cons: Apple-only and app-based; cannot call landlines directly

Zoom Phone

Enterprise-focused phone system with PSTN integration and advanced PBX features. Good for teams and contact centers.

  • Pros: Enterprise features, PSTN support
  • Cons: Typically requires account and setup for business use

Telegram and Signal

Secure messaging apps that support voice and video app-to-app. Focused on privacy and messaging features.

  • Pros: Strong privacy features, fast messaging
  • Cons: App-to-app only; no native PSTN calling to phone numbers

StartACall

Call any real phone number globally directly from your browser without installing an app. Built on WebRTC and Twilio, with virtual numbers, StartACall, and real-time analytics.

  • Pros: Browser-based to PSTN, US/Canada digital numbers, Clear audio, no app required
  • Cons: Designed for calling real phone numbers rather than app-to-app chats

When to Choose a Browser-Based PSTN Service

Use a browser-based PSTN service when you need to call regular phone numbers, manage virtual numbers, or integrate calling into workflows without forcing recipients to install apps.

Call Any Phone Number

Unlike app-only services, browser-to-PSTN platforms call landlines and mobiles anywhere in the world.

Privacy and Control

You control caller ID with virtual numbers and manage calls centrally without relying on recipients to have a specific app.

Fast Setup

Start calling from your browser in seconds. No installs, no complicated PBX configuration for basic use cases.

What StartACall Adds

StartACall bridges the web and the phone network. Use your browser to call anyone, buy and manage US/Canada digital numbers, and enhance calls with StartACall or a real-time copilot that transcribes and suggests responses.

Virtual Numbers
Local presence in many countries. Route inbound calls to your team or StartACall in the browser.
Clear audio
Live transcription and suggested replies keep conversations efficient and professional.

Frequently Asked Questions

Can I call regular phone numbers with messaging apps?

Some apps offer PSTN gateways that let you call phone numbers but many are app-to-app only. For guaranteed calls to landlines and mobiles choose a PSTN-capable service.

Do I need to download anything to use StartACall?

No. StartACall works directly in modern browsers like Chrome, Safari, and Firefox. No app installation required.

Will recipients need an app to receive my calls?

No. When you call a phone number using a PSTN-capable service, recipients get a normal phone call on their device.

What is a virtual number and why would I use one?

A virtual number is a phone number you control in a country or city. Use it to display local caller ID, receive inbound calls, or route calls to teams or StartACall.

How can AI improve international calling?

AI can transcribe calls in real time, provide live suggestions to agents, handle routine inbound calls autonomously, and generate summaries for follow-up.

Start calling internationally from your browser

No installs, real phone numbers, AI assist, and US/Canada digital numbers. Get started in seconds.

Alternatives to Viber for International Calls

In short

If you want an alternative to Viber for international calls, StartACall lets you dial any country straight from your browser with no app download, no SIM card, and no phone number to set up. Calls are pay as you go and billed by the minute, so the person you ring does not need Viber or any app installed. That is the key difference: Viber only works when both sides use the app, while StartACall reaches any regular landline or mobile worldwide.

Why people switch away from Viber

The main limit with Viber is that free calls only work when both people have the app and an account. The moment you need to reach a normal landline, a business line, or a relative who does not use Viber, you have to buy Viber Out credit anyway. StartACall removes that barrier entirely. You call from a browser tab in Chrome, Safari, Edge, or Firefox and the call lands on any regular phone number in the destination country, no app required on the other end.

There is also nothing to install or register on a phone. No SIM card, no second number, no setup. You open the page, dial the international number, and talk. That makes it useful on a work laptop, a shared computer, or any device where installing an app is not practical.

How the pricing compares

StartACall is pay as you go and billed per minute, so you only pay for the calls you actually make instead of committing to a plan. Outbound international calls need no phone number of your own. If you also want to receive calls, you can add a US or Canada digital number at a flat monthly price between $2.14 and $5, but that is optional and only needed for inbound.

Privacy and call quality

Calls on StartACall use end to end encryption, which matters if you are discussing personal or business matters across borders. Because everything runs in the browser over your internet connection, you get clear voice quality on Wi Fi or mobile data without depending on the recipient having the same app or a strong data plan on their side.

Frequently asked questions

Can I call someone who does not have Viber?+

Yes. Unlike Viber app to app calls, StartACall connects to any regular landline or mobile number worldwide. The person you call does not need Viber, StartACall, or any app installed.

Do I need to download an app to replace Viber?+

No. StartACall runs entirely in your web browser. It works in Chrome, Safari, Edge, and Firefox with no app download, no SIM card, and no phone number required for outbound calls.

How much do international calls cost?+

Calls are pay as you go and billed per minute, so you pay only for what you use. There is no monthly plan needed to make outbound calls. A US or Canada number for receiving calls is optional and carries a monthly fee between $2.14 and $5.

Are the calls private?+

Yes. StartACall uses end to end encryption on calls, which is helpful for personal and business conversations made across international lines.

Last reviewed June 2026Reviewed by the StartACall calling teamDialing rules cross checked against ITU international dialing procedures
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