Transaction Fee: Polygon (Matic) vs Binance Smart Chain (BSC)

You want to deploy NFT game / dApp on Side chain, then there are two biggest options right now: Polygon and Binance Smart Chain (BSC), both are basically Ethereum layer-2 blockchains. So how to decide which blockchain you should use? I think the most important is: Transaction Fee

As you may know, BSC is more expensive than Polygon, but how much times? As both chain are Ethereum layer-2, there is a very easy way to calculate this:

Go to both blockchain explorer of both Chain:

• Polygon: https://polygonscan.com/txs
• BSC: https://bscscan.com/txs

On each site, click on a random transaction and view the Gas Price of the transaction, for example at the time I write this post:

• Polygon: 0.000000001 MATIC (1 Gwei) (From this tx: https://polygonscan.com/tx/0xa0632661d74d32800c7d4e72571694afbb01864ee06df6a39c67f1a7b823c64c)
• BSC: 0.000000005 BNB (5 Gwei) (From this tx: https://bscscan.com/tx/0xbb3d0155ab54be7abc47cb357e3cedaaf2c2ab07c0aaec5e8d36b9cbf94c8a51)

So we can see that the Gas Price for BSC is 5 Gwei, for Polygon is 1 Gwei

We also know 1 BNB = $486 and 1 MATIC = $1.42 (from coinmarketcap.com)