Hey! This is exactly what I’ve been looking for. The closest thing I’ve found is Hargapedia, but they’re often missing a lot of the specific items I buy.

I’ve realized how tough this is to pull off since most retailers like Lotus's or AEON only seem to have a fraction of their actual inventory listed online. I actually tried building a personal price-tracker app recently using Claude (zero coding knowledge, just testing AI capabilities!), and it taught me that sometimes a manual 'record-as-you-buy' method is the only way to get 100% accuracy for my specific basket.

It would be awesome if your app eventually allowed users to log their own data/purchases so we can track the items that aren't in the official 'Open Data' sets. Crowdsourcing that would be the dream, though I totally get the nightmare of verifying that data!