The Art Book Paint Color by Number game is a popular and free app that you can download from the Google Playstore. The app is made by Playcus Limited and has good ratings and reviews. It has been installed on over 10000+ Android and iOS devices, and has a 3.5-star user aggregate rating. Most of the apps developed for mobile platforms are only available on iOS and Android, but you can run Android apps on PC by installing an Android emulator.

The best emulator to run the game is MemuPlay. It is fast and optimized for gaming. Simply download the emulator from the official website, double-tap on the Google Playstore icon, and enter your Google account details to log in. Then, install the app. Once installed, open the app and enjoy your new coloring adventure! Just don't forget to follow the instructions to complete the installation of the app. Once the installation process is completed, you're ready to get started.

The Artbook is one of the best paint-by-number apps for adults. It has a massive collection of coloring pages with over 5000 designs. It also has hints throughout the activity, and you can see a preview of the finished artwork from recent activity. In addition to the free version, you can purchase the paid version of the app to remove ads and unlock all the premium features. The premium version also removes the watermarks, and it works offline.