Restart your iPhone/iPad/iPod Touch. If you don't know how to do that: hold down the power button until "slide to power off" appears, slide, wait until the device shuts down, then push the power button again to power on.
If that doesn't clear up the problem, the next step is to delete the app and re-download it from the App Store. You can follow the instructions here under "Reinstall the application."
If you are seeing Moonlight Mahjong slow down on iOS, the problem is most likely with your device. Restarting your device usually fixes the problem; see the question above. Needing to restart your device from time to time is a fact of life, particularly if you run a lot of apps, if your device is older, or if you don't update your system software. The same guidance goes for any game on iOS that uses sophisticated 3D graphics and animation. You might also want to know that tens of thousands of people play Moonlight Mahjong every day without incident.
If you are seeing Moonlight Mahjong slow down on Mac, the problem is most likely other apps running in the background, taking up processing time. Quit the other apps while playing the game. Or, try restarting your Mac and playing Moonlight Mahjong first. The same guidance really goes for any games on the Mac.
It's a fun tile matching game with very simple rules, yet it can be quite absorbing. Moonlight Mahjong in particular makes it easy for you to get started. Why not download the free version and see?
Please read the documentation included with game. Touch the sprocket button and select the first item, "About..." (On the Mac, it's in the Help menu.)
Make sure the ring/silent switch on your device is on "ring" and not "silent" in order to hear the sound effects. On the iPad, you may need to go into the Settings app, General pane, change "Use Side Switch to" to Mute, and flip the switch on the side of the device on and off, making sure to leave mute off before using the switch to lock the rotation again. (Yes, we know that's a bit crazy. The same issue affects any game that honors the setting of the mute switch.) Sound effects can also be turned on or off in the game in the game's Options menu. On first generation iPod Touches, which do not have a built-in speaker, you must use headphones. Also check your volume level in the Settings app.
For the Mac version: go into System Settings, go to Sound, and make sure "Play user interface sound effects" is checked and the alert volume is not all the way down.
You can listen to your own music while playing Moonlight Mahjong. Just start your own music before starting the game.
Make sure the surface of your screen is clean. Hold the device in your hand, rather than setting it on a table. Try zooming in to be able to select tiles more easily.
Moonlight Mahjong on Mac OS X is not compatible with Ink handwriting recognition. At the moment the only workaround for this appears to be to turn off handwriting recognition while playing the game. First quit the Moonlight Mahjong app, then open the Settings app, select Ink, and turn off Handwriting Recognition. Then re-launch the Moonlight Mahjong app. You can turn handwriting recognition back on when you need it again.
Moonlight Mahjong is an entirely new game written specifically for the iPhone, iPod Touch and iPad. I don't like to say never, but it's very unlikely that I'd do a PC version. There are many different versions of Mahjong Solitaire on PC already.
I am not releasing an Android version at this time. The issue is that Android is almost impossible to support across thousands of different devices, and as a developer I would much rather focus on making apps good. Sorry; that's the way it is. For now, anyway.
Yes, software updates are free and easy, and I'm still adding new features and enhancements. I've added many, many features and improvements since version 1.0. Moonlight Mahjong does not 'do' in-app purchases, because the author just doesn't like them.
The term Mahjong Solitaire is most commonly used to describe this type of game. The App Store does not allow room for long titles, however, and "Moonlight Mahjong Solitaire" is a bit of a mouthful anyway. The description of Moonlight Mahjong clearly indicates that this is "Mahjong Solitaire," not "real" Mahjong. "Shanghai," by the way, is a registered trademark, not a general description that can be used.
Like it is spelled, apparently, although opinions seem to vary. I honestly have no idea. Perhaps it's just one of life's mysteries.
If your question is not answered here, or you have feedback, you can email midnightmartian @ gmail.com. Please keep in mind that the guy who does Midnight Martian is very busy making more apps and features and cannot answer every email.