Third-party archives like APKISM pose significant security risks, including malware, spyware, and data theft, as they lack the verification processes of official platforms. Experts advise using reputable alternatives such as APKMirror or F-Droid, which vet files to ensure they haven't been altered. For a deeper look at the safety of such sites, see the analysis at Avast . A Guide to APKPure: Is It Legal and Is It Safe? - Avast