> For the complete documentation index, see [llms.txt](https://kastxyz.gitbook.io/kast-affiliate-program-wiki/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://kastxyz.gitbook.io/kast-affiliate-program-wiki/how-to-promote-kast/why-kast-stands-out.md).

# Why KAST Stands Out

#### The main special aspects of KAST: 

* Quick sign-up process.
* Apple Pay and Google Pay compatibility.
* Premium metal cards with reward points.
* Affordable plastic and free virtual cards.
* Low foreign exchange rates (\~2.5%).
* Onchain transfers and local payment options.

### Staking and Passive Income

KAST offers passive income opportunities through staking. Partnered with KIL, KAST provides a Solana validator with zero commissions. Cardholders can enjoy annual returns:

* Free Solana card: 7% return.
* Solana Illuma Card: 14% return.
* Solana Gold Card: 21% return.