> For the complete documentation index, see [llms.txt](https://singsing.gitbook.io/singsing/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://singsing.gitbook.io/singsing/platform/deprecated/application.md).

# Application

- [Tax & Fee](https://singsing.gitbook.io/singsing/platform/deprecated/application/tax-and-fee.md)
- [Anti-Cheating System](https://singsing.gitbook.io/singsing/platform/deprecated/application/anti-cheating-system.md)
- [In-App Marketplace](https://singsing.gitbook.io/singsing/platform/deprecated/application/in-app-marketplace.md)