Introducing SketchPad - Doodle On The Go, a versatile and exciting application that allows users to unleash their creativity through digital sketching and doodling. Packed with a wide range of functions and features, this app provides an intuitive and convenient platform for users to express their artistic talents wherever they go.

1. Functions and Features: This application offers a myriad of tools and options to create stunning visuals. Users can choose from a variety of brushes, pencil styles, and color palettes to bring their imagination to life. With layers and blending modes, users can add depth and complexity to their artwork. Additionally, the app enables easy sharing and exporting of creations in various formats.

2. Most Attractive Feature: One of the most captivating features of SketchPad - Doodle On The Go is its realistic simulation of traditional drawing tools. Users can enjoy an authentic drawing experience, as the app replicates the natural strokes and textures of real-life mediums. This feature resonates with both professional artists seeking a portable digital canvas and casual users looking for a creative outlet.

3. Global User Base: With its user-friendly interface and superb functionality, SketchPad - Doodle On The Go has amassed a substantial global user base. Currently, millions of users worldwide are utilizing this application to explore their creativity, from aspiring artists and designers to hobbyists and students.

4. Common User Issues: Despite its popularity, some users may encounter occasional issues while using SketchPad - Doodle On The Go. Common problems reported include occasional crashes or lagging, particularly when working with larger canvases or complex projects. However, the app's developers consistently strive to address and resolve these issues through regular updates and bug fixes.

5. Advantages and Disadvantages: SketchPad - Doodle On The Go offers several advantages that set it apart from other sketching applications. Its vast array of drawing tools and customizable options provide users with endless creative possibilities. Additionally, the app's portability allows users to create art anytime, anywhere. However, one drawback is that certain advanced features may be limited or only available through in-app purchases, which can deter some users seeking a fully inclusive experience.

In conclusion, SketchPad - Doodle On The Go brings the joy of sketching and doodling to users’ fingertips, offering an extensive array of functions and features. With a large global user base and a realistic drawing experience, this app continues to inspire creativity and spark imagination on a global scale. Despite minor issues, the advantages of this application far outweigh any drawbacks, making it an appealing choice for both amateur and professional artists alike.