Works like it should – Night Vision (Photo & Video) Review

My issue is that I just got an iphone 8 and when I went to the app store, it isnt listed as free,( I want to try it on that phone to compare it to the factory low light camera before I buy anything), the app was free for my iphone 5s, and worked great, but now Im having an issue, please fix it
Review by Burt 198567 on Night Vision (Photo & Video).