Game Over Screen - Free Heart Watch Ad and/or Free Heart Buy with hard currency

Currently, I have both stacked vertically. One is where the user can watch ad free to get a heart and below is free heart using hard currency.

This is my logic, if the player has a lot of hard currency he obtained from the game's in app store, he\she can use it. It doesn't interrupt the player. On another hand, if the player runs out of those "gems" then he or she can watch an ad or alternatively, buy more "gems". Seems like enjoying both worlds, right?

 

Yep, sounds like a good idea and actually are games that use this.
Bit keep in mind that watching 30sec ads constantly will cause a endless match.
A idea to counter that will be:
-Only let watch the ad 1-2 times.
-Every death screen the money needed to respawn increases, even if in the past you watched a ad price = defaultValue * times.