This is an ok app, here are a few suggestions that I have:
1.) have a setting option to where you can turn the magnifier on or off.
2.) for each number that you’re coloring on it should be highlighted (like most color by number apps), that way you can see the numbers more clearly.
3.) have hints (also like most color by number apps), to find whatever number you’re coloring on much faster and much easier.
Overall this app does have potential, I hope the developers take my ideas into consideration because I feel like my ideas will be so much easier for other users and will help improve the game a lot better. Thank you for taking the time to read my review :)