Price affects demand Higher price means more profit! But lower sales frequency... so decrease price to sell faster! But remember to recoup your costs Ingredients costs money, so remember to take enough profits to invest in more lemonades! Upgrades reduce cost and increase demand But you can buy upgrades to grow lemons, sugar fields, and more! Making them free to produce. Also you can increase demand by buying distribution methods! Three unique levels As a story based clicker, there are three different levels with unique upgrades. No in-app purchases It's a short subject, hence it's free!