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TradingView spots when a free account likely belongs to someone who already pays for premium, then warns them. Our UX Bites cover login and account-detection moments like this.
Key takeaways from 1 UX Bite
Warns users logging into a free account that they may already have a premium one
Detection prompts head off duplicate accounts before subscription data gets messy
The warning names the mix-up rather than silently letting the login continue
Often uses:
If features can be coded in minutes, thoughtful design is what wins
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