Modstore is described as 'you can download moded apps and games from Jokhio Apps modstore'. There are more than 10 alternatives to Modstore, not only websites but also apps for Android, Android Tablet, Kindle Fire and Chrome OS. The best alternative is Google Play Store, which is free. Other great sites and apps similar to Modstore are Aptoide (Free), APKPure (Free), APKMirror (Free) and Uptodown (Free).
Aptoide is a distributed marketplace for mobile applications which runs on the Android operating system. In Aptoide, unlike the default Google Play Store, there is not a unique and centralized store but each user manages their own store.
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.