A day after Gable Tostee was acquitted over the balcony fall death of Wellington woman Warriena Wright, who he met on Tinder, Sex and the City star Kim Cattrall has urged women to be careful when using dating apps.

The actress, who played the notoriously promiscuous character Samantha Jones in the long-running series, is in New Zealand for a promotional visit to judge a Specsavers competition.

She told the NZ Herald that "women have to be careful to vet these invitations in a conscientious way because they are getting themselves into situations, that are in some cases fatal".

Cattrall went on to urge women to "be cautious and to take care of themselves first".