Writeathon 写拉松 is a writing tool designed and developed for writers. It aims to provide a simple, efficient, and focused writing experience. With its minimalist design, users can enjoy a distraction-free environment for their writing tasks.

The app offers several key features to enhance the writing process. The Card Box feature allows users to quickly add notes or ideas, providing an immersive experience. The writing feature enables users to edit their work at any time and easily share it with others. The app also provides writing statistics and a writing calendar to help users track their progress. Additionally, the night mode feature offers a more immersive and pure writing experience.

Please note that Writeathon 写拉松 is a free app, but it also offers a subscription service for additional features. The subscription options include a monthly plan for 11 CNY and an annual plan for 108 CNY. Users can manage their subscription through their iTunes account settings.

For more information, you can refer to the Apple Standard License Agreement and the app's privacy policy, which can be found on the developer's website.