Reddit user "rocwong" has created a groceries price comparison website Grocer.nz which was posted in r/NZ subreddit page.
In short, it's Pricespy/Drinkspy for groceries. You can compare prices for Countdown, Pak N Slave and New World for any product listed on their website. Catalog appears to be updated daily.
Features include:
Store selection
Barcode scanner
Lists & shopping lists
Website link:
https://grocer.nz/
Reddit thread:
https://www.reddit.com/r/newzealand/comments/u3zkuo/living_c…
Newshub article:
https://www.newshub.co.nz/home/new-zealand/2022/04/new-zeala…
Surely this will be useful for fellow Cheapies!
Was discussed a bit in another thread: https://www.cheapies.nz/comment/123261/redir
With this website, I noticed that CD seems to be the most expensive consistently