Users would find out about apps the same way they do now: Hearing about the apps from friends and/or media. If one dating app was much better than the others, people would hear about it from their friends, and people who don’t have friends in the dating pool would hear about it from the media.
I also don’t think it’s a privacy issue to provide aggregate data about this. A dating app could run surveys asking people if they’re still dating a person they met on the app. The harder part would be getting people to actually answer, but there’s incentives you could try (like take a deposit and refund it if the person answers the survey), and if your app is actually life-changingly good it will be easier to convince users to take 5 minutes to help you out.
Users would find out about apps the same way they do now: Hearing about the apps from friends and/or media. If one dating app was much better than the others, people would hear about it from their friends, and people who don’t have friends in the dating pool would hear about it from the media.
I also don’t think it’s a privacy issue to provide aggregate data about this. A dating app could run surveys asking people if they’re still dating a person they met on the app. The harder part would be getting people to actually answer, but there’s incentives you could try (like take a deposit and refund it if the person answers the survey), and if your app is actually life-changingly good it will be easier to convince users to take 5 minutes to help you out.