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It replaces SMS when the recipient has a device that supports it. Otherwise it'll just send an SMS. The send button is green for SMS and blue for iMessages. But
by karipatila 15y ago
It replaces SMS when the recipient has a device that supports it. Otherwise it'll just send an SMS. The send button is green for SMS and blue for iMessages. But the point is indeed that the user doesn't have to think twice about it.