Dash offers an official wallet for iOS. It is designed to securely implement the latest features. Some third-party apps also support Dash.
By The Dash Foundation
The official Dash Wallet supports advanced Dash features such as InstandSend. You can scan and display QR codes for quick transfers, backup your wallet using a recovery phrase, keep an address book of frequently used addresses and even pay to Bitcoin addresses through native integration with ShapeShift.
Jaxx on iOS
Jaxx wallet supports multiple currencies including Dash. It generates a seed phrase which can be used to synchronize your wallet on other devices. Other common features such as QR codes and a PIN code for security are also available.