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I was really surprised to see my Chinese friend pay the restaurant bill using WeChat, just by flashing a QR code. Which means they know all the data a typical social network can handle, but also how much you are paying where.

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I keep voicing concerns about Google Wallet in that respect but nobody takes it seriously.

That's because everyone knows that nobody really uses Google Wallet.

sshhhh, if parent keeps voicing their concerns, sooner or later they're bound to be within earshot of someone who uses Google Wallet.

Is any service better? Apple Pay?

My understanding is that Apple Pay enables the payment, but Apple does not collect or retain any data such as to whom you paid how much. Here's what Apple's iOS Security Guide say:

"Apple Pay is also designed to protect the user’s personal information. Apple Pay doesn’t collect any transaction information that can be tied back to the user. Payment transactions are between the user, the merchant, and the card issuer."

https://www.apple.com/business/docs/iOS_Security_Guide.pdf

Two different animals. Apple Pay lets consumers purchase goods from a merchant. Google's offering in that space is Android Pay. Google Wallet is more similar to Venmo in that it's only for peer to peer transactions.

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