The app requests tracking of my activities. What does that mean and what should it do?

Link offering free coins/items by clearing our game

Alert : For users using Android versions below 6 and iOS 10

How do I change the payment method?

How can I restore my payment history?

How can I get a refund?

Memory Issue

My game crashes (or does not start)

I've experienced a bug. What should I do?

How can I update my app? (Android)

How can I update my app?(~ iOS 12)

How can I update my app?(iOS 13~)

What is the notification?

Can I turn on or off the music or sound effects?

I want to reset the game.

How to opt-out Personalized Ads in the Android?

How to opt-out Personalized Ads in the App Store?

How to report inappropriate ads

Hint/Coin/Item/Reward have disappeared.

What is the Terms of service and where can I read it?

What is the Private Policy and where can I read it?

May I see what data and information you have collected about me?

I'd like to save the progress.

I cannot connect to Facebook.

I don't have Facebook account. How can I save & load the game progress?