Android:
Unity project setup - this guide goes through the added packages, build settings and player settings for android. You can Build and Run the unity project directly to your android device or download and open the apk file onto your device
iOS:
Unity project setup - this guide goes through the added packages, build settings and player settings for iOS. After building in iOS, you must send the app to your phone using XCode Youtube tutorial: How to Build & Run Unity to iOS for Testing
Gotchas:
- Manage Signing
- Privacy & Security - turn on development mode - restart the device
- VPN & Device Management - trust the app