What is the Christmas Holiday Hidden Objects game, how does it work?

According to the introduction of GameSoftMobile, Christmas Holiday Hidden Objects is a Puzzle game on the Android platform. There is currently a 1.0 version released on Nov 18, 2018, you can see the details below.

Christmas Holiday Hidden Objects is a hidden object game dedicated to Christmas. Enjoy the atmosphere of Christmas holidays and find hidden items. Explore various interiors that may help you to decorate your own Christmas tree. You may find many bells, Santa’s toys, Christmas wreaths and other things to be inspired. Santa Claus is waiting for you in this educational, engaging and entertaining game for the whole family.
Your goal is to find series of hidden objects on each level. Use Hint and Zoom buttons to find items quickly. If you can not complete any level you can simple skip it and try to complete it later. Completed levels will be unlocked and you can replay them with different hidden objects set. When you complete the game press More Games button to install more hidden object games for free.