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Wallet mobile app that allows sending transactions with data to smart contracts on BSC?

I have tried about a dozen crypto wallet apps on Android, including Metamask, and I haven’t found a single one that:

  • supports BSC (BNB Smart Chain)
  • allows me to send a transaction to a smart contract with data. That is, basically, to interact with a smart contract at all.

Does anybody know one?

Actually I haven’t even found one that satisfies the second requirement alone, even on the Ethereum network alone.

Metamask is the only one that does have the option, but it doesn’t work. You need to go to Advanced Settings and enable an option to "Show hex data field in transactions", and then it does show a "hex data" field when you make a transaction, but it doesn’t allow you to enter anything in it, so I don’t know what’s the point of that.

I’m shocked that I have spent one afternoon trying all the wallet apps that I could find in Google Play and none of them has the most basic feature that is expected of a wallet.

On desktop, the very first that I tried was the Metamask browser extension for Chrome and and it works.

Oh! It would be a plus if it also supported EIP-681 links. That is, you click on such a link from your default browser (e.g. Chrome) and it opens the wallet app and does the transaction. Again, MetaMask behaves as if it had this feature, but it’s broken. It will actually send a transaction to the target address with the set amount, but with no data (and with no warning!), causing the transaction to fail and be reverted (which costs you the gas fees).

How can transaction fees be explained in a simple way?

I am reading the book Mastering Bitcoins 2nd Edition by O’Reilly, and it says: Alice buys a coffee from Bob’s Cafe for $1.50, or 0.015 Bitcoin So Alice pays 0.015 Bitcoin, and Bob gets 0.015 Bitcoin, but there is a transaction fee, paid to the miner. There are some questions: Does Alice pay more or::Listen

I am reading the book Mastering Bitcoins 2nd Edition by O’Reilly, and it says:

Alice buys a coffee from Bob’s Cafe for $1.50, or 0.015 Bitcoin

So Alice pays 0.015 Bitcoin, and Bob gets 0.015 Bitcoin, but there is a transaction fee, paid to the miner.

There are some questions:

  1. Does Alice pay more or does Bob get less? (the fee has to come from somebody)
  2. The way to calculate the fee seems to be a whole essay. Typically, what kind of percentage can the fee be, if it is a $1.5 coffee, or if somebody sends another person US$1 million dollar worth of Bitcoin, or if it is exchanging Bitcoin for US$1 million? But one person mentioned that it is voluntary (even the link above said the spender "may" include a fee, suggesting they can choose not to), but who would want to pay a fee if they don’t have to? I can understand if they send over US$1 million and the fee is $13, then they probably don’t mind and "want" to include a fee.
  3. The miner gets the fee — is that the miner who originally did the mining of the coin, or is it that somehow, the fee (or transaction) gets encrypted and a new miner has to mine it. It is described as: all the miners compete to find the next new Bitcoin, but there is also Proof of Work (to get a fraction of Bitcoin), but there is no mentioning of the miner getting a transaction fee. How does it factor into the flow or procedure?

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Wallet mobile app that allows sending transactions with data to smart contracts on BSC?

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