downloaded an App from App Store on my iphone 14 pro max but unable to open App

Several things to try:

Have you restarted your device? That sometimes clears up odd issues.

If an app on your iPhone or iPad stops responding, closes unexpectedly, or won’t open, read this document for suggestions of things to try --> If an app on your iPhone or iPad stops responding, closes unexpectedly, or won’t open - Apple Support

Delete the app and try to redownload the app from Apple --> Redownload apps and games from the App Store - Apple Support

This support article tells you how to contact an app developer - How to contact an app developer - Apple Support - for problems running an app or problems restoring purchases

This support article tells you how to find the URL for an app in the App Store to report a concern --> Find the URL for content to report a concern - Apple Support

If an app or feature on your device is not working or is restricted, it may have been disabled using Screen Time, or by an IT administrator if you are using a device owned by an employer or educational institution. See how to use Screen Time on an iPhone, iPad, or iPod touch by clicking here --> Use Screen Time on your iPhone or iPad - Apple Support

If you still have problems click here --> Choose your country or region - Official Apple Support Select your country, then a product.

You need to offer more information.

Which app?

Is this the only app behaving this way?

What happens when you try to open the app?

Is there an Alert Notice when trying to open the app?

The more info, the more likely someone can offer solutions.

M1 Mac mini, macOS 14.5;  Watch, series 7 GPS/cellular, watchOS 10.5; iPhone 12 Pro, iOS 17.5; TV 4th Gen, tvOS 17.5; HomePods, audioOS 17.5 and Airport Express w/ Airplay 2