The mention of a "Premium Mod APK" generally refers to a third-party modification that claims to unlock commercial features for free. However, users should be aware that the official TeamViewer QuickSupport app is already free for personal, non-commercial use on the Google Play Store . Core Features of v15.38.15

only with people you explicitly trust; never give access to unsolicited callers claiming to be from "tech support."

from official sources like Google Play or the TeamViewer website.