We already have mentioned about this concept that Apple might want to play around with the way we unlock our phone with this option as fold. If we can’t find this concept directly from Apple, out talented developer on Cydia, we have Fold To Unlock on Cydia.
Honestly I am a fan of Cydia that I really find this tweak interesting to me. With this tweak, you can enjoy a better way to unlock your phone as you fold paper.
You can download this tweak for free from Cydia from BigBoss repository.