Sean Gardner, a spokesman for the website, said in recent years lenders had simply been trying to offer the longest zero per cent deal, with Virgin Money heading the table for some time.
He added that Barclaycard's offer "will stir things up and it'll be interesting to see who follows".
"Barclaycard has marked out a new battleground for competition in the credit card market," he claimed.
The OnePulse credit card maintains a "competitive" 14 month zero per cent deal as well as the "lower fee", Mr Gardner concluded.
Barclaycard claims it offered Britons their first credit card product back in 1966.
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