Version 1.5 had a perfect balance of power and simplicity. The Edit View for destructive waveform editing was pristine, fast, and intuitive—far more straightforward than modern bloated DAWs. Users miss that workflow on a touchscreen.
If you specifically need the features of version 1.5 (like the unique noise restoration tools), you can attempt to "bridge" the software onto Android. Using Winlator or Exagear adobe audition 1.5 for android
While not officially supported, some users have successfully run the legacy on Android using emulation: Version 1