Why There Are So Many Video Calling Apps

Video calling has been around for decades, but it exploded into everyday life when smartphones became universal and broadband became reliable. The result: a crowded field of apps, each built with a slightly different user in mind.

Some apps grew out of messaging platforms (WhatsApp, iMessage). Others were designed specifically for business meetings (Zoom, Microsoft Teams). A few are built directly into your device's operating system. Understanding why each app exists helps you match it to your situation quickly.

Before diving in, it helps to understand that many of these apps also run in a browser — meaning you don't always need to install anything. If you're unsure about the difference between using an app and opening a website, see our explanation of apps versus browsers.

How the Main Categories Compare

Video calling apps generally fall into three categories: personal/social apps, cross-platform messaging apps, and professional/meeting platforms. Here's how they stack up across the criteria that matter most to beginners.

FaceTimeWhatsAppGoogle MeetZoomMicrosoft Teams
Works on Android NoYesYesYesYes
Works on iPhone YesYesYesYesYes
Account required to join Apple IDPhone numberOptional for guestsOptional for guestsMicrosoft account
Free group call time limit UnlimitedUnlimitedUnlimited (60 min guest)40 minutes60 minutes
Screen sharing LimitedNoYesYesYes
Best suited for Apple-only householdsCross-platform personal callsQuick browser-based meetingsProfessional meetingsMicrosoft 365 workplaces

A few things to note: "account required" matters because some apps — like Google Meet — let guests join via a link without signing up, which is useful when calling someone less tech-savvy. Group size limits also vary significantly; most personal apps cap free group calls at much lower numbers than business platforms.

Personal Apps: Built for Convenience, Not Flexibility

FaceTime (Apple devices only) is the easiest choice if everyone you're calling uses an iPhone, iPad, or Mac. It requires no downloads, no accounts beyond an Apple ID, and delivers consistently good video quality. Its limitation is absolute: it does not work on Android or Windows devices.

WhatsApp sits in a middle ground — it's primarily a messaging app, but its video calling works across both Android and iPhone, and it uses your phone number as your identity, so there's no separate username to remember. It's a practical option for international calls since it uses Wi-Fi or mobile data rather than cellular minutes.

You Don't Need to Install Every App

If someone sends you a Google Meet or Zoom link, you can often join directly in your web browser without downloading anything. This is especially helpful if you're helping an older relative get onto a call — just paste the link into Chrome or Safari and follow the prompts. Encourage the host to send a direct join link rather than asking guests to create accounts.

One thing to keep in mind: when you install any video calling app, it typically requests access to your camera, microphone, and sometimes your contacts. Understanding what those permissions actually mean is worth a moment of your time — see our guide on app permissions explained in plain language.

Professional Apps: More Features, More Setup

Zoom became a household name because it works reliably across virtually every device and operating system, and its free tier is genuinely functional for most personal use. The main free-tier limitation is a 40-minute cap on group calls with three or more people — a deliberate nudge toward paid plans.

Microsoft Teams is bundled with many Windows computers and Microsoft 365 subscriptions, making it the default for many workplaces. It integrates tightly with Word, Excel, and Outlook, which is its primary advantage in office environments.

Google Meet is arguably the most accessible option for beginners who don't want to install anything — it runs entirely in a web browser and allows guests to join without a Google account. If you use Gmail, Meet is already woven into your inbox.

Free Tiers Have Real Limits

Most professional video calling platforms offer free tiers that are genuinely useful but deliberately constrained. Zoom's 40-minute group limit, for example, will abruptly end your call mid-conversation unless you restart or upgrade. Always check the specific limits of any free plan before relying on it for an important call, and have a backup plan — such as a phone number — in case the connection drops.

How to Pick the Right App for Your Situation

Rather than asking "which app is the best overall," ask these three questions:

  1. What devices does the other person use? If they're on Android, FaceTime is immediately off the table. If they're on an iPhone and you're on a PC, WhatsApp or Google Meet are practical choices.
  2. How many people are joining? For two people, almost any app works. For a group of ten or more, you'll want a platform designed for larger calls.
  3. Do you need features beyond basic video? Screen sharing, call recording, and breakout rooms are standard on Zoom and Teams but absent or limited on personal apps.

Most people end up with two or three apps installed — one for family, one for work, and one as a backup. That's perfectly normal. If you're thinking about how to keep things organised, our article on keeping your home screen organised offers some practical approaches. And if you're weighing whether to upgrade to a paid tier, our breakdown of free vs paid apps explains what you're actually trading off either way.