Ripple (XRP) casino mobile payments: how wallet apps label the tag box
The wallet you hold XRP in and the cashier you deposit to differ in one important way: the cashier shares an address among many customers, and your wallet usually does not.
That difference is why the tag box exists in some apps and why some people never meet it until their first casino deposit.
Why a personal wallet seldom needs a tag
A wallet you control is generally an address that is yours alone, so a payment to it needs no number to say whose it is. A custodial service, such as an exchange or a casino, shares addresses and needs the number. This is the reason a deposit to your own wallet often feels simpler than one to a casino.
What do wallet apps call the field?
Apps differ: tag, destination tag, memo, or a field tucked under an advanced option. Roobet and Cloudbet both use the combined phrase tag/memo in their own help text, which tells you that the casinos are aware of the confusion too.
If the field is hidden by default, expand it. A wallet that does not offer the field at all cannot send a tagged payment, and for a casino that requires the tag, that wallet is the wrong tool.
What a QR code may leave out
A scan fills in what the code contains. If the code carries only the address, the tag box stays empty and the send button stays enabled. Looking at the box before you confirm is a two-second habit that catches the problem.
FAQ
Why can I receive XRP in my own wallet without a tag?
Because the address is yours alone. Tags are for shared addresses, such as those exchanges and casinos use.
What if my wallet has no tag field?
Then it cannot send a tagged payment. Use a wallet that has the field for any casino that requires a tag.