: The current official version of Truecaller on Google Play and official APK mirrors is v26.17.6 . A v10 build is several years old and lacks critical modern security patches.

The file you mentioned, "Truecaller Premium v10 build OptionA1," is highly suspicious for several reasons:

: Using modified (MOD) versions of Truecaller violates their Terms of Service , which can lead to your phone number being permanently banned from the service. Official Premium Features (v26.x)

Searching for and downloading specific "Premium" or "Unlocked" builds of Truecaller from third-party sources as .zip or .apk files carries significant security risks. As of April 2026, the official and safest version of Truecaller is , making a "v10" build extremely outdated and likely a vehicle for malware or data theft. Safety and Risk Assessment

: "Premium Unlocked" versions found in .zip files often contain Trojans or spyware designed to harvest your contacts, messages, and banking info.

Legitimate Truecaller Premium provides several advanced safety and utility tools that unofficial builds cannot reliably offer: Truecaller: Spam Call Blocker - Apps on Google Play