A small Nab beta test: compare five groceries, stop before the cart

A reader gave me a useful boundary for Nab: compare the groceries they buy every week, but stop before adding anything to a cart.

I’m the maker, and I’d like to use that as a small beta test rather than ask people to delegate a whole shopping trip. Here is the prompt:

“Compare these five items across these two shops in [country]. Match pack sizes, show unit prices and source links, and state when you checked. Flag membership prices and unavailable items. Don’t add anything to a cart or buy.”

The result should make it easy to spot a wrong size, an expired offer, or a missing delivery fee. A cheap-looking total without those details isn’t very useful.

If you try Nab, tell me which part still makes you open the shop’s website and double-check. That is the part I want to improve.

Web account setup: https://heynab.com/login?utm_source=producthunt_forum&utm_medium=community&utm_campaign=grocery_test_20261030

Nab is in early beta. Web onboarding lets you review the toolkit before subscription checkout; tool activation is paid and availability varies by country/provider. Card setup is optional and requires identity verification and issuer approval.

For your weekly shop, is the harder problem comparing prices, checking availability, or trusting the final basket?