> For the complete documentation index, see [llms.txt](https://docs.affyn.com/en/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.affyn.com/en/all-about-usdfyn/setup-metamask/guide-to-using-the-metamask-in-app-browser-on-mobile.md).
# Guide to Using the MetaMask In-app Browser on Mobile
Mobile device users are required to use the MetaMask in-app browser in order to connect to their wallet to the [Affyn marketplace](https://marketplace.affyn.com/) website. MetaMask **will not work** with other browsers such as Chrome or Safari on a mobile device.
## How to use the MetaMask In-app Browser
{% hint style="info" %}
Actual UI may differ due to updates.
{% endhint %}
**Step 1:** Open the MetaMask mobile application. If you do not have a MetaMask account, you can refer to [this guide](https://docs.affyn.com/en/all-about-usdfyn/setup-metamask/how-to-create-a-metamask-wallet) to create one.
MetaMask
**Step 2:** Check that you are connected to the **Polygon Mainnet**. If you need help to set up Polygon Mainnet, you can refer to [this guide](https://docs.affyn.com/en/all-about-usdfyn/setup-metamask/how-to-set-up-polygon-network-on-metamask).
**Step 3:** Select the `Browser` icon
**Step 4:** Select `Search or Type URL`
**Step 5:** Enter and search
**Step 6:** Congratulations! You have successfully arrived at the Affyn Marketplace using your mobile MetaMask in-app browser.
---
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