Wonder Cave -Relaxing Puzzle- app for iPhone and iPad

How to play
If you arrange 3 or more crystals of the same color either vertically or horizontally, the crystals will disappear.
The number of disappeared crystals will be reflected in the score.
The score will be added to the points called Unie.
Save Unie and unlock new background graphics.
You can select the time mode and move mode from the title screen.
You can switch modes at any time during the game with the back button at the top left of the screen.
Even if you press the back button during the game, the points you have earned so far will be added to Unie.
From the left, the three buttons on the title screen are sound settings, graphic settings, and stats.
BGM and SE can be turned on and off in the sound settings.
In the graphic settings, you can use Unie to unlock the graphic and set it as a game screen.
On the stats screen, you can check the scores and Unie so far.