Worthy like Shazam?

@Vengir  
But it still involves having to play the same level again and again until you get what you want.  
This game definitely needs an endless mode or something to make grinding more sufferable.

@bugatti2005  
You can have 3 rare ponies and still have some gems left over at the price of one legendary. At first it might actually seem like the former option is good until you save up some more, but in reality it’s not. I didn’t expect how much better it is to have a legendary compared to 3 rares, and then I blazed through all the way until Scootaloo 4.
 
Real secrets that were cool discoveries to me is how quests are handled and how you can maximize the length of your quest grind before you are indefinitely stuck or how can you increase gem yields from new levels by increasing the ad bonus to 75%.

The funniest part is that many of those players that claim to have beaten the game in a few days recommend to apropiate a legendary or UR pony in order to do so.  
It’s only a matter of time that those guys/gals find out that you can beat Super Mario Bros by jumping

I beat it all…no money spent…somepony save me…

@bugatti2005  
Yeah, that too.

@Vengir  
Yes it is if you can handle the one-tracked monotonous grinding

@bugatti2005  
I’m not a fan of mobile games in general, but this one is surprisingly very F2P-friendly, as long as you know how to tackle it right.

At least for me, it is a godlike achievement to play actively that game or the Gameloft one for more than 4 days.