STEPS I TOOK TO GET LIST APP BACK AFTER UPDATING MY PHONE

My iPhone 5s (this is all First World Probs) died yesterday and I ended up buying an iPhone 6 plus and everything was great until ten minutes ago when I realized List App was no longer on my phone
  1. 1.
    I panicked
  2. 2.
    I frantically opened gmail to find the original invite
  3. 3.
    I tried searching and the right email wasn't coming up
  4. 4.
    I did it again and it miraculously worked
  5. 5.
    I downloaded list app again
  6. 6.
    Everything became right in the world again