Back when Tara and I were doing long distance, we tried a variety of apps to communicate. iMessage ruled supreme, but we also tried Couple and Path. Here's an email we got when I visited each other (so we weren't using the app any more all of a sudden).

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Hey Joe,

It looks like Tara and you stopped using Couple a few days ago. Any chance you'd mind giving me some feedback on why you decided to stop using Couple? We are always striving to improve Couple and your feedback would be really helpful. Anything we could have done to make Couple more useful for you and for your partner? I would really appreciate your response.

Thanks for giving Couple a try!

Oleg Kostour
Co-Founder & CEO, Couple