How can I download apps on my iPhone?
I want download things in my iPhone
[Re-Titled by Moderator]
Download apps and games on your iPhone or iPad - Apple Support
Get apps in the App Store on iPhone - Apple Support
Note that if you are in a family where your iPhone has Screen Time / Parental Controls set, your iPhone might be set up to keep you from downloading apps, or to require you to get permission from a parent or guardian. In that case, you would need to take the issue up with your parents or guardians.