Changes in the last few years have made Ok Cupid a bit more like Tinder (both owned by the same company) focusing more on swiping and eliminating the ability to message a user without matching with them first.
On the upside, the profiles are brief, which helps you to make decisions quickly.
I shouldn't have to look up online tutorials to figure out how to use a dating app. I was also disappointed in the notifications, which I found too pushy.
CMB was constantly "gently" reminding me to message people I'd matched with.
And the prompts provided by Hinge do help create more engaging profiles.
Hinge's current slogan is simply "Designed to be deleted," and if a serious relationship is what you're looking for, this is the dating app I would recommend.