Netflix not download in my ifone please solve my problem quickly

It tells you right in the screenshot what the issue is, you need iOS 15 or higher to run the program.

Depending on what model your phone is, you need to update your iOS. Look at the list below to see if your phone can be updated.

• If you have an iPhone 5S or 6/6plus, the highest you can update to is 12.5.6

• If you have an iPhone 6S through 7, you can update to 15.7.2

• If you have an iPhone 8 or higher, you can update to 16.2

Go to Settings > General > Software Update.

This link will show you how to update your iPhone, iPad, or iPod touch using WiFi -

Update your iPhone or iPad - Apple Support Update your iPhone or iPad - Apple Support

This link will show you how to update using your computer -

Update iOS on iPhone - Apple Support Update iOS on iPhone - Apple Support