Both vets and pet stores posted a 32.4% rise in sales over the period, compared to two years ago.
In comparison, the specialist retailer category only grew by 9.3% overall, suggesting pet products and accessories have become must-buy items for pet owners after lockdown.
Face-to-face non-essential retail reported a decline of 17.4% in April, compared to a sharper 50.5% drop in March.
Furthermore, consumer confidence in the UK economy jumped to 36% last month, from 28% in March.
Raheel Ahmed, Barclaycard’s head of consumer products, said: “The easing of restrictions provided a promising boost to a number of sectors in April, with consumer spending back in growth and confidence in the UK economy at its highest level since before the onset of the pandemic.”