Here’s how you can find the OS version on both Android and iOS devices.

Checking the OS Version on an iPhone (iOS)

1. Open Settings:
   Open the Settings app 

2. Go to General:
   Scroll down and select General.

3. Select About:
   Tap About at the top of the menu.

4. Look for the iOS Version:
   Look for the iOS Version field. The number displayed (e.g., "iOS 18.1") is your current iOS version.

Checking the OS Version on an Android Device

1. Open Settings:
   Open the Settings app. 

2. Navigate to System or About Phone:

   • Scroll down and select About Phone or About Device (the exact wording may vary depending on your device).
   • On some devices, you may need to go to Settings → System → About Phone.

3. Find the Android Version:

   • Look for a field named Android Version.
   • The number displayed (e.g., "13") is your current Android OS version.