Most stability problems come from lack of system resources, unstable Internet connections, or low bandwidth.

Make sure your Internet connection is stable and has decent bandwidth.
We recommend using a stable Wi-Fi connection instead of 3G/4G, because in the case of mobile networks, your bandwidth may change based on your location.  
Even if your connection signal (Wi-Fi/3G/4g) seems to be strong, it doesn’t mean that your bandwidth is at its best. Bandwidth may be limited due to several reasons:
1. You are not the only user on your network.
2. Other users are actively using the network watching video content or downloading large files (for example, torrents).
3. The bandwidth might also be limited by your router’s settings.

Close all other applications before playing. This should free up some RAM.
If you do have any other applications running in the background, the game's performance might drop severely.
In this case, we recommend closing all other apps that might take up RAM or use your Internet connection.

Keep an eye on how much free memory you have.
Often players have game performance issues when there's not enough free memory space on their devices.
Make sure you have more free memory available for the game than just it's size suggests. Remember, Guns of Boom needs memory to make and store temporary files. If your device is almost full, you can free up some space by deleting unused apps and media files, or store them somewhere else (SD Card). Some devices don't have a lot of built-in memory available. In this case, we suggest storing all CIG files on an SD Card.