Best answer by GeorgeH
The reason there are only 2 apps currently available for IOS is because Apple and Android simply need different levels of security at this time. Because of the the sheer openness of the Android OS compared to the iOS, Android is naturally more susceptible to attacks and viruses. For now, secure web and sync will provide the necessary protection for your iOS devices. Secure Web will protect your iOS device from phishing and malware and securesync works in conjunction to your portal letting you sync your files and folders safely.
Here is a link to some information and videos you might find helpful: