Answers for "ionic v1 mode ios"

ionic set mode ios to whle app

import { IonicModule } from '@ionic/angular';

@NgModule({
  ...
  imports: [
    BrowserModule,
    IonicModule.forRoot({
      rippleEffect: false,
      mode: 'ios'
    }),
    AppRoutingModule
  ],
  ...
})

ionic ios only css

.ios{
	ion-badge {
  		text-transform: uppercase;
	}
}

ionic 5 make app portrait only

If you want to restrict to portrait mode only on all devices 
you should add this line to the config.xml in your projects root folder.

<preference name="orientation" value="portrait" />

After that, please rebuild the platform by typing below text in command line:

ionic build