I can’t download any app can you help me

Hello salahuddin193!

Allow me to provide this link:

If you can’t download or update apps on your iPhone or iPad - Apple Support

Within the link, which is an Apple Support Article, you will find five troubleshooting steps you can take to try and fix your issue.

I hope this is helpful. Good Luck!

What happens when you try? What error message do you get?