# hello world Testnet App Live on Polygon

By [hello world](https://paragraph.com/@helloworldnews) · 2023-07-29

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The hello world testnet app is now live on Polygon’s Mumbai Network - try it at [app.helloworld.news](https://app.helloworld.news)!

Here’s how 👇

*   `CONNECT` your wallet
    

![app.helloworld.news](https://storage.googleapis.com/papyrus_images/73810414f8be0be5a64eda7b4d3f4c57ab347fb751c0cb2f0265b53877a0d91b.png)

app.helloworld.news

*   `ADD MUMBAI NETWORK` to MetaMask
    
*   Get testnet MATIC from the `MATIC FAUCET`
    
*   Get testnet NEWS from the `NEWS FAUCET`
    

![](https://storage.googleapis.com/papyrus_images/9da240a8902979eafc971f9bda7461a5a389c09685f470710388f9e1ab6e5538.png)

*   Each thread is a Headline NFT on Mumbai - click on one to interact with it
    

![](https://storage.googleapis.com/papyrus_images/09bc7a3b1b5a26f7d3c11c88b2b8d742d590702c8433670b23f024711cc647ee.png)

*   Mint or upvote comments by burning testnet NEWS - click `ADD COMMENT` or `UPVOTE` and follow the MetaMask prompts
    
    Owner of the most upvoted comment is awarded the Headline NFT at the end of each period 🤘🏻
    

Tell us what you think in [Telegram](https://t.me/helloWorldNft)!

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*Originally published on [hello world](https://paragraph.com/@helloworldnews/hello-world-testnet-app-live-on-polygon)*