To game makers: Great game! Keep it up!
To readers: I have a few cheats for your complaints. Sadly I don't have the solution to crashing, but if you're sick of the ads, you can't do anything about the ads when you complete it, to not get ads after each fail, hurry and press the redo button before they die, so that you won't have to wait for an ad. If you want that rainbow feather pen, you don't actually have to share it on social media. I just clicked on one of them, then exited the window that asked me to sign in. When I got back into BrainDots , I had it. Sadly, that one doesn't write in rainbow, so if you want one that draws in rainbow colors, you have to press the redo button 100 times to unlock it, then buys it for 300 coins to use it.
If you're still reading this and considering getting it, I totally suggest it! It's so fun and addicting and I got all my friends to play it and they love it too!