APK4Share is described as 'Download APK & OBB files from Google Play Store and APKPure (Latest Version) and APK Mod, Games Mod, Apps Mod'. There are nine alternatives to APK4Share, not only websites but also apps for Android and Android Tablet. The best alternative is APKPure, which is free. Other great sites and apps similar to APK4Share are APKMirror (Free), APKCombo (Free), ApkBongo (Free, Open Source) and APK EXE (Free).
In an effort to make things easy, and maybe even fun, AndroidPolice.com created APK Mirror. Over the past several months, they've been working to build a smooth, reliable, trust-worthy site to host the downloads users love. You also can upload APKs to the site yourself.