I love these kind of farming games, and Fairy Farm is particularly fun and charming. BUT, and that is an appropriately big but, you inevitably will have to make a purchase, probably multiple purchases, to continue playing this game. Everything you do expends energy, and energy is the hardest thing to earn in the game. As far as I can tell, it is almost impossible to earn and really only available for purchase. If you try to wait to allow time to rebuild your energy for free, your plants whither which expends further energy to revive them. I would rather buy the game outright and have longer ways to earn energy than have to constantly be harassed to make a purchase which only lasts for so long. I am just not going to spend $50 to play a game for a short time.
Get this game and play slowly, planting and harvesting in one round of energy, or be prepared to spend lots of money for limited playing time. Too bad, as this is a delightful little game.