If you were to decompile an original Android 1.0 system app (like the Dialer, Browser, or Home screen), you would find a structure remarkably similar to today’s APKs, but with primitive roots.
An Android 1.0 APK consisted of:
Android 1.0 shipped with bizarre system apps that vanished by 1.5: android 1.0 apk
Since you cannot install Android 1.0 on a modern phone, the only legitimate way to use it is via the Android Emulator included with Android Studio.
What to expect:
Most apps these days are not compatible with Android 1.0 due to the advancements in Android and changes in API levels. For old compatible APKs, you might look into archives or repositories like:
The Android 1.0 APK format established the foundational packaging model still in use today but suffered from severe technical limitations: small DEX method count, weak signing security, lack of resource variants, and no runtime permissions. Modern APKs retain the same top-level structure but have evolved signing schemes, resource compilation, and performance features unrecognizable to the 2008 developer. Preserving and analyzing Android 1.0 APKs is valuable for digital archaeology and understanding the platform’s rapid maturation. If you were to decompile an original Android 1
If you are testing for research, look for these hallmark features that defined Android 1.0 (vs. the iPhone OS of 2008):
Cheats & hacks