No, one cannot use the Chatroulette app on iPhone.
The closest in resemblance with similar functionality as Chatroulette is the Omegle. It very likely allows users to video chat, send texts, and comment face to face over wifi and mobile data irrespective of the device on which you are playing it. These applications are compatible with every smartphone without taking any kind of risk to the security of the user.
They are very user-friendly and do not cause any kind of disruption to the device such as freezing the screen or redirecting to other sites or unnecessary inappropriate advertisements etc. The foremost important thing that is getting monitored here is user safety so that they do not have to worry about any kind of inconvenience on grounds of privacy.
Read More: Is Chatroulette Legal?
As an alternative, there are plenty of alternative apps that serve similar purposes for iPhone users. These include Omegle, ChatRandom, MeowChat, Chatous, Fav talk, SLOWLY, Mixsii, etc. Chatroulette alternatives are very certainly those Random Chat apps and Random Video chat apps or Video Calling apps available in the play store.
In conclusion, Chatroulette is only for computers or laptops but its alternatives that have similar functionality are popular when it comes to iPhone users. However, no user has ever mentioned Chatroulette to be better or less than all other alternatives with respect to content, features or easy accessibility, or safety.
Users cannot use Chatroulette on their Android. Because this site is only available for desktops or personal computers a user having a cell phone or a mobile phone cannot able to access this site due to some lacking features of Chatroulette. To access this site a person just needs a computer with well-connected internet.
Chatroulette is a site where a person can make friends through a webcam or texting. A person can relieve his or her boredom through this site. Though Chatroulette is underrated it is still used by many people all over the world.