I'm on the iPhone 6 (16GB) on iOS 8.1.
I currently have installed:
ForceGoodFit - Forces apps to use the 6/6+ resolution (some apps look bad or break when you use this though, be warned)
DetailedBatteryUsage - Wayy more detail for Battery Usage (I just wanted the graph)
iCleaner - Remove junk files off your phone
SameStatus - Smaller status bar on the lockscreen
Alkaline - Battery icon themer
LockGlyph - Replaces Slide to Unlock with the Apple Pay animation
Springtomize 3 - For customizing Springboard appearance
RecentFacebook - Forces Most Recent for the Facebook app
I currently have installed:
ForceGoodFit - Forces apps to use the 6/6+ resolution (some apps look bad or break when you use this though, be warned)
DetailedBatteryUsage - Wayy more detail for Battery Usage (I just wanted the graph)
iCleaner - Remove junk files off your phone
SameStatus - Smaller status bar on the lockscreen
Alkaline - Battery icon themer
LockGlyph - Replaces Slide to Unlock with the Apple Pay animation
Springtomize 3 - For customizing Springboard appearance
RecentFacebook - Forces Most Recent for the Facebook app