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

# Application Design

## Investment Settings

<figure><img src="https://730825372-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FeYmFjstGhV95kZn2NfZi%2Fuploads%2FbRr2cWYg962wl6DBkBXZ%2Fimage.jpg?alt=media&amp;token=6a081dfd-6431-4003-b308-9f4960dfa542" alt=""><figcaption><p>Investment Settings Littlebit app</p></figcaption></figure>

## Set your saving percentage

<figure><img src="https://730825372-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FeYmFjstGhV95kZn2NfZi%2Fuploads%2FHE1oLpRQRi5yqgjp5Na4%2Fimage.png?alt=media&amp;token=0ed47151-c6e8-4493-9e31-961316129955" alt=""><figcaption><p>Save your saving percentage</p></figcaption></figure>

## Withdraw your Bitcoin or gold

<figure><img src="https://730825372-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FeYmFjstGhV95kZn2NfZi%2Fuploads%2Fnqiy3uUjRC1BcnxpxPQg%2Fimage.png?alt=media&amp;token=a801e6f0-c926-4596-8e5b-16d9fb84351d" alt=""><figcaption><p>Withdrawal Bitcoin to your wallet</p></figcaption></figure>