iOS Ref
Design
Resolution by device
Display tech by device
Fonts by iOS version
Ext
OS
iOS version by device
&
watchOS
,
tvOS
,
audioOS
iOS adoption rates
Ext
Hardware
RAM & processor
Hardware strings
Swift
Swift versions
Swift 4 cheatsheet
All docs
Ext
Swift Book
Ext
Swift guides
Closures
(
mini
)
Functions
Control flow
Dispatch
Guides
Entering recovery mode
Objective-C block syntax
Tools
Convert hex to UIColor
WTF, Auto Layout?
Ext
NSDateFormatter
Ext
Apple docs
All docs
Ext
HIG:
iOS
&
watchOS
Ext
App Store
Review Guidelines
Ext
Marketing Guidelines
Ext