According to the iOS data ranks on App Annie and compared to the website ranks. Some apps do not have a web application, like Sapio.
App Ranks on Feb 21 2017
|Site/App||iOs Rank||Alexa Rank|
|Coffee Meets Bagel||1391||147,256|
Yes, I may have missed some.
Check out the ranks of the dating websites: http://www.brainiacdating.com/tos/
These are ranks collected by Alexa.com