Even worldwide calls can work with these calling apps.

These apps are all available for a variety of platforms, including iOS and Android devices and web browsers.

FaceTime

Apple Inc

Built into iOS, iPadOS, and macOS.

A FaceTime call between an iPhone and an iPad

Apple Inc

Updated regularly as part of OS updates.

Non-Apple users can’t start FaceTime calls.

FaceTime app itself is not available for Android and Windows users.

Call history and call keypad in Skype app for iOS

The FaceTime name has become so ubiquitous it’s supplanted the word for making a call.

Skype

Works on nearly every unit.

Send voice messages, videos, and images.

Settings and contacts in iOS WhatsApp Messenger

Supports texting and video calling.

Its many features could be overwhelming to some.

Skype is the service that kicked off the VoIP craze.

People, Discover, and call tabs in iOS Facebook Messenger app

Many devices support Skype, which also canmake HD video calls.

The Skype app is available for iPhone and iPad.

Skype is also accessible from a web net internet ride.

Call history, call keypad, and Discover tabs in Viber app for iOS

WhatsApp Messenger

Supports texting and video calls.

Doesn’t store communication details on its server.

Shares PDFs, spreadsheets, and more.

No iPad version of the app.

WhatsApp is the most popular VoIP app for mobile devices.

According to Meta, which owns the app, WhatsApp has over 1 billion users.

WhatsApp’ssecurity focussets it apart from other internet calling apps.

The company says, “Privacy and security are in our DNA.”

Because end-to-end encryption is enabled, WhatsApp makes sure nobody can spy on your phone calls.

Voice messaging, texting, and file sharing also work through WhatsApp in a surfing app.

Facebook Messenger

Allows group calling.

Built-in emojis, GIFs, and stickers.

Chat with Facebook friends outside of the Facebook app.

Supports a limited number of devices.

Requires a Facebook account.

If you’re one of the billions of people worldwide who use Facebook, you’ll like Messenger.

The Messenger website supports calls, as well.

Viber Messenger

Clearly marks free-to-call contacts.

Lets you send 30-second video messages.

Call protection with end-to-end encryption.

Requires access to a phone number to sign up.

Once Viber reads your contact list, it will indicate who you might call on Viber for free.

If you have a limited data plan,monitor your consumptionand use calling apps sparingly.