Since the app's purpose is to receive SMS (often for 2FA or account verification), a modded version could allow the "modder" to intercept your private messages and codes.
: Removal of the frequent advertisements found in the free version. Extended Retention Temp Number - Phone Number v1.8.3 Premium Mod Apk
If you need a temporary phone number for privacy or verification, consider these legitimate methods: Official App: Download the authentic Temp Number Since the app's purpose is to receive SMS