Warning: long answer ahead. Short version: there will be very soon. I use it daily on my own iPhone.
The issue is that because Crypton does crypto with JavaScript in the web view of a Cordova app, it needs to not be stupendously slow. The default iOS web view available for Cordova apps, up until iOS 8, was the UIWebView which is well known for not having access to a JIT (like Nitro in mobile Safari). This means that JavaScript crypto (particularly done the way SJCL does it) is VERY slow. We're talking almost two minutes just to log in. :/
However, even though iOS 8 now provides a web view with a JIT (WKWebView), it has been slightly crippled by Apple. The WKWebView disallows loading local files except from the app's tmp folder. This has meant some work for the Cordova iOS team to get the WKWebView working. It is finally at a stage where it can be used, but some of the changes Cordova had to make to get it working, plus some differences in WKWebView's API, mean some changes had to be made to both Crypton and Encryptr to get it all to work.
It's working now. However, since I will still have to dance through a few more hoops of fire (Apple submission and other pain), I am planning on pushing out a new version for the existing platforms first. Then I should be able to do what needs to be done to get the iOS version out.
The issue is that because Crypton does crypto with JavaScript in the web view of a Cordova app, it needs to not be stupendously slow. The default iOS web view available for Cordova apps, up until iOS 8, was the UIWebView which is well known for not having access to a JIT (like Nitro in mobile Safari). This means that JavaScript crypto (particularly done the way SJCL does it) is VERY slow. We're talking almost two minutes just to log in. :/
However, even though iOS 8 now provides a web view with a JIT (WKWebView), it has been slightly crippled by Apple. The WKWebView disallows loading local files except from the app's tmp folder. This has meant some work for the Cordova iOS team to get the WKWebView working. It is finally at a stage where it can be used, but some of the changes Cordova had to make to get it working, plus some differences in WKWebView's API, mean some changes had to be made to both Crypton and Encryptr to get it all to work.
It's working now. However, since I will still have to dance through a few more hoops of fire (Apple submission and other pain), I am planning on pushing out a new version for the existing platforms first. Then I should be able to do what needs to be done to get the iOS version out.