Insane amount of gems needed.
The first area in game is tons of fun, very addictive, and fairly easy to get 3 stars on all levels. Then I bought the bakery, which costs coins and some gems. I was able to get 2 stars on all levels without needing to buy a ton of upgrades requiring gems.
Then I got my 3 area, the pizzeria. Nearly everything requires gems to upgrade. Just to upgrade the cheese for the pizzas the first time costs 5k coin and 20 gems, which is about $2.00 worth of gems. Thats for the first upgrade of just one ingredient.
As fun as this game is, Im removing it from my devices. I can understand needing gems to unlock new areas, and maybe for the really high end upgrades, but when everything requires them, it becomes to expensive
They do pretend that you can win gems at the casino. I blew over 20k in coins (100/spin) and didnt win a single gem or coin.
Lnitefall about
Cooking Fever: Restaurant Game, v1.9