Hi there! It sounds like you're having trouble locating the Trading 212 app on your device after downloading it. Let’s troubleshoot this together.

1. Check if the installation was successful: Sometimes, the app may not install correctly. Go to your device's settings and check “Apps” or “Applications” to see if Trading 212 is listed there.

2. Search for the app: In case it got moved to a different screen or folder, try using the search feature on your device. You can pull down from the home screen to access the search bar, then type “Trading 212”.

3. Restart your device: Restarting your phone can refresh the system and might help in showing the app if it was indeed installed.

4. Reinstall the app: If you don't find the app after searching, let’s try reinstalling it. Uninstall any existing version of the app:
- Go to “Settings” > “Apps” > find Trading 212 and select “Uninstall”.
- After it’s uninstalled, go back to your app store to download it again.

5. Check Storage Space: Ensure that your device has enough storage available, as insufficient space can prevent apps from appearing after installation.

6. Try a Different App Store: If you are in a region where the app may not be available, confirm which app store you are using and check if Trading 212 is supported in your location.

Can you try these suggestions and let me know how it goes?