After more than 15 years covering everything Apple, it’s with a heavy heart we announce that we will no longer be publishing new content on iMore and the iMore forums will be closing as of November 1st, 2024.
You're referring to the Android APK source called Aptoide? You can't run Android apps on an iPhone. Minecraft PE appears to be readily available in the iPhone App Store -- grab it there.
If by chance you're asking about getting a paid app at no cost, don't do so here. That is piracy and against the Forum policy.