I can't download outlook

1. Is this your corporate iPhone? Then please contact the system administrator of your corporate
2. If it is your personal device, in that case, do you have any profile installed by your corporate/organisation/enterprise/School Management?
   1. Erase the profile added by you If you have installed a profile on your own --> Install or remove configuration profiles on iPhone - Apple ...
   2. Or please contact the system administrator of the organisation who provided the profile to you

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

If you can't download or update apps on your iPhone or iPad · Open the App Store and sign in · Manually update the app · Check your

If you can't make purchases or update apps, including free apps, you need to update your payment method or add a new one. If you already verified that a payment method is available in your country or region and you're still having trouble, learn more.

I just checked - It is compatibility

If the reason given is that the app is not compatible with the old iphone 6 then you need to get a more modern phone.

Many apps now require ios13 or higher including banks and some media apps.

Your work tools need to be the best available. Suggest iphone SE 2020 model