Colorify Color by Number

Colorify: Color by Number is a digital puzzle application developed for mobile platforms, including iOS and Android. The game presents users with a library of grayscale line drawings, each divided into numerous small, numbered sections. Each number corresponds to a specific color from a provided palette. The objective is to fill each numbered section with its designated color, gradually revealing a full-color image. The game offers a wide variety of image categories, such as animals, landscapes, mandalas, and portraits. Images range in complexity from simple designs with large sections to intricate illustrations containing hundreds of small cells. The application operates on a freemium model, providing a selection of free images daily while offering additional content through in-app purchases or a subscription service. The core mechanic is derived from traditional paint-by-number kits, adapted for a touchscreen interface. The game does not require artistic skill or color theory knowledge, as the color assignments are predetermined. It functions primarily as a relaxation and focus tool, with no timers, scoring, or competitive elements. The application stores user progress locally, allowing images to be completed over multiple sessions.

Gameplay and controls are executed entirely through touch input. The user begins by selecting an image from the main gallery. The interface displays the grayscale outline with numbers inside each closed shape. A color palette is presented at the bottom or side of the screen, with each color swatch labeled by its corresponding number. To color a section, the user taps a number on the palette to select that color. The selected color is highlighted. The user then taps a numbered section on the image. The section fills instantly with the chosen color. The application automatically prevents coloring outside the boundaries of the selected section. The user can zoom in and out of the image using a two-finger pinch gesture to access smaller sections. Panning across the image is performed by dragging a single finger. An undo button reverses the last action. A hint button, often limited by a recharge timer or in-app currency, automatically fills a random unfilled section. The game tracks the total number of sections filled and displays a percentage of completion for the current image. Completed images are saved to a personal gallery within the application. The user can also choose to view a preview of the final colored image at any time. No stylus or additional hardware is required.