Yes, WhatsApp, FaceTime, and other video/voice calling apps generally work in Egypt, though past intermittent restrictions have largely eased.
Historically, Egypt has had periods where Voice over IP (VoIP) services were intermittently blocked or throttled by local providers. However, these restrictions have significantly eased in recent years, and most travelers find that popular communication apps function without issues for both messaging and calls.
When you use an eSIM for data in Egypt, your device will automatically connect to the strongest available major mobile network. This allows you to use your preferred apps like WhatsApp, FaceTime, Messenger, and others to make calls and send messages over mobile data, just as you would at home. Call quality can sometimes be affected by local network congestion or coverage in more remote areas, but this is typical for any data connection globally.