Story worth for couples

What is it:

StoryWorth Once a week, we email them questions you’ve never thought to ask.They simply reply with a story, which is shared with you each week.At the end of a year, their stories are bound into a beautiful keepsake book.

36 Questions That Lead to Love is a game that asks thought-provoking questions to help you get to know your partner better. Not only was it a fun experience, I felt closer to my girlfriend afterward.

If you combined the Storyworth model with questions similar to 36 Questions That Lead to Love and then marketed that to couples, I think you’d have a winner.

The idea is to combine both and have 48 questions for couples in a mobile app where questions are sent and received

Target market:
Couples(married,dating)
Age from 18-40

Marketing (how to get customers):

We could market it to couples through instagram and facebook marketing

Budget:
Got a proposal from a dev to built the app for $800

Revenue model:

After the 48 questions are done they could opt in to buy e-book
Sell decks with question cards through the app
Couple night board games through the app
Couples therapy through the app
Selling couples sex toys through the app

So basically the 48 questions are just a traffic capture to the other possible add on products

Thoughts ,feedbacks,ideas?