[Ologn]

> I cannot develop a mobile app on a mobile device.

You can develop an Android app on an Android device.

https://play.google.com/store/apps/details?id=com.aide.ui

[jgalt212]

It's probably better stated:

cannot effectively develop a mobile app on a mobile device.

Productivity largely correlates with screensize.

https://www.google.com/#q=productivity+screen+size