Why the confusion exists
Two unrelated apps ended up with the same name. The iPhone Delta app is a well-known iOS emulator by one developer; The Android app is a separate app by Shanks Game. Search results mix them constantly, so here is the clean split. The Android build is covered in full on the Delta Emulator home page.
The emulator for Android
Package com.truc.delta.emulator.executor, 51 MB XAPK, published by Shanks Game. It installs on Android 7.0 and up, is ad-supported with in-app purchases, and holds a 2.3 rating from 302 Google reviews. This is the app served on this site.
The iPhone app
A different codebase by a different developer, built for iOS. It never appears on this site, its saves and settings do not transfer to the Android app, and its documentation does not apply here. If a tutorial mentions iOS-specific steps, it is describing the other app.
How to tell which one a guide means
Check three things: the package name (that package means Android), the file type (XAPK means Android), and the developer (Shanks Game means Android). When all three match, you are reading about the Android app and the guides here apply.
