Hi atomcreate,
Thanks for reaching out in Apple Support Communities. I understand that you've set up an iPhone 6 as a temporary device for your daughter, but you're not seeing all of the apps she needs downloaded to the device. I know it's important to have the apps she uses most available; I'd like to help. If you restored the iPhone 6 from a backup of her iPhone SE, take a look here first: About missing information after you restore your iPhone, iPad, or iPod touch with iCloud Backup
You can also use the steps in this resource to redownload the apps from the App Store: Redownload apps, music, movies, TV shows, and books
Let me know if this helps!
Best Regards.