CHICAGO (CBS)– Grocery delivery is more popular than ever, but you will pay more for the convenience?

One viewer reached out to CBS 2 after he saw his Instacart delivery cost was almost $30 more than what his shopper paid in-store at Jewel Osco.

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We reached out to Instacart about this discrepancy. They said while some retailers offer in-store prices, others mark them up on the app.

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So, how can you tell if you’re over paying? Experts say can look at each store’s pricing policy on Instacart’s website and app.

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Instacart does offer deals and coupons.