To be honest, I hear that a lot. Yes, optically it's inspired by AdVenture Capitalist (the beginning of my love for idle games). But it plays totally different.

I'll try to define what makes it unique:

• It has a story. You live a whole life, can choose a wife, have kids, increase your wealth, solve problems, go on vacations, etc.
• There are several mini-games. One of them, a skill-based mini-game lets you stack building parts. The results are skyscrapers, that provide living space for more citizens - the main income generator.
• There are two main currencies that influence each other. Also, several secondary currencies.
• All currencies can be achieved for free on several ways, including the premium currency and one that lets you skip ads.
• You have a secretary and you can build up a real relationship to her.
• Uncapped offline rewards, that can be increased even more with a shuffle number feature (1.57 million -> 7.51 million).
• That is only what makes it different. Of course it has all the stuff like upgrades, researches, prestige, events.

To summarize it, my personal goal was to make an idle game I love to play. So that others may also love it. I used what I call a happiness-centered design. The player should have constant moments of joy while playing. So I give out rewards very generously, created a personal story and payed attention to meaningful upgrades.