Super Simple, Super Excellent. That's how I would describe this amazing app called Must. With a small space usage of only 20M, this app is perfect for those who are looking for a simple and efficient whiteboard tool. Whether you need it for work, life, or study, Must has got you covered. It's not just your ordinary whiteboard, it can also be used for various purposes such as scratching, demonstrating, writing, doodling, and more. It's like having a notepad, notebook, scratch paper, blackboard, and whiteboard all in one app. One of the best features of Must is its ability to use any image as a background for your doodles. You can even choose from the templates provided, like a football field or basketball court. The possibilities are endless and it's all up to your imagination. But what makes Must truly stand out is its simple operation and concise interface. You can easily write with just one finger and use two fingers to zoom in and out of the screen. The interface is clean and user-friendly, allowing you to choose from four colors and three pen strokes. And if that's not enough, you can even customize more colors for the whiteboard pen, brush color, and background color. Plus, you can also select from a variety of stroke sizes to suit your needs. Once you're done with your masterpiece, you can save it as a high-resolution image in your photo album or print it directly. And if you want to share it with others, you can easily do so through short messages, emails, or social networks. But in case you encounter any issues, the app also has a FAQ section to help you out. And if you still need assistance, you can always contact the developers through their email address provided. In conclusion, Must is a must-have app for anyone who needs a simple and efficient whiteboard tool. With its wide range of applications and quick start download, it's definitely worth trying out. So what are you waiting for? Download Must now and experience its super simplicity and excellence for yourself.