I want to try:
1) 8 bit draw (great job): 5,000-10,000 downloads
2) brain scan omatic (1 hour work): 500,000 - 1,000,000 downloads
(same period)
Actually, I'm a very slow coder, so it took me about 3h to complete, plus 1h to "polish" a bit the code...
The whole Brain-Scan-Omatic is now reduced to 214 code lines plus the cameraEx class.
I have at the moment 4 GP published apps, and if I add all the previous 3 overall downloads, I don't even make pass the 1.5k downloads at a surprisingly less than 200 active user!
Bottom line is, I don't think too much about how many equal or similar apps are out there... I try to think on how I can make it unique, by having/giving the user an unique feature they never thought needed!
BTW, I like your 8-Bit draw app, and if I may be so bold, can I suggest a new name for it (?)
8-Bit Movie Maker
From the video, I see as target 2 types of public...
1 - the Dev Wannabee's like myself, who like to do some graphics on their own... your app provides a dirty quick result.
2 - the young kid that like to create he's very own small movie... the Tarantino's wannabee's!
A possible extra feature to export the "video" animation to Social apps would/will greatly increase it's usage