jikodesu, We don't need another app to install.
When Grab PH bought motorcycle taxi app Move It, I thought I would become a 1st-time customer of that service. I use Grab, so it already has my info. I wouldn't need to sign up and type all my details. How convenient.
But Move It wasn't integrated into the Grab app. Instead, I would have to download a new app.
Bummer. One fewer customer for the company.