Nightshift for iPhone 5C? Third party app recommendation?

Ok so as you may know, iOS 9.3 came with the new nightshift feature which makes your screen more yellow allowing for better sleep. However, this feature is not included for iPhone 5C and down (5, 4S). Is there a third party app from the internet that allows the same effects? No jailbreaking required please. Link if possible. I do have a Mac if needed.

Jail breaking required as it would affect system wide and Apple doesn't allow this by default from apps.

After you've jailbroken your device you'd need to install a tweak called f.lux (from where Apple took the night shift idea).

Since you're on iOS 9.3, there's no jailbreak for it at this moment and would have to wait for pangu or taig to release it in the coming weeks and any site who says it has it right now is lying and probably just want ad revenue from your visit.

If you don't want to jailbreak because they say it invalidates your warranty and other stuff, restoring removes it completely and nobody would be able to know your phone once had it.