.apk on phone but wants to install each time I run

Unity Engine
,
1

I have the apk on my phone and it works fine except each time I open it I get

Do you want to install an update to this existing application? Your existing data will not be lost. The updated application will get access to:

followed by:

This update requires no new persmissions

then I install and it runs.

But every time I have to do this

2

[solved]
it was a shortcut on the home page. Deleted it and dragged in the app from settings > apps and it works fine