We checked and found that no adult chat website had an application on Google play or IOS app store. No sexual applications are allowed in the Google Play or IOS app store.
If you see an application which looks like an adult chat website, I would discourage you to download it because this is not safe for your privacy. Don’t forget that applications can get access to your picture gallery, your contacts….etc….
Some adult chat websites like Livejasmin, Stripchat allows people to download an application from their website.