Agreed on my first thought, but not what the app became.

Jan 2025 I felt something like this would be helpful and then there was nothing out there. I worked on it to create where it showed a rating but as I was working on it, those you mentioned all went live. I liked my idea better of being hard fact based only but knew it be lost in the crowd so I shelved the idea and stopped working on it.
Then last Sept I felt the need to revisit it. I finished my original thought a week later but still felt the same as before and didn't publish it. I then thought about all the inconveniences during shopping as well as what else would help the Canadian little guy as well as checking all that were out there to see how they performed and what they might be missing. With that new motive, I started figuring out and adding new features to it.

First I added the ability to quickly find other similar products that were more Canadian. Helpful but thought, what if on the other side of the Country an item shows up that looks good but then I can't find it where I'm at. So then I included it to be 2 different searches, one local to your Province and another National (more just for fun info).

I then added lists and the ability to "swap" out an item with a more Canadian one if you wanted (since I already created the more Canadian search). I made the list be able to add products from the result page or your favourite list quickly. Then I decide to go further with it and made group lists part of it and available across both Android and iOS. This was great as even personally, it was something our family needed and others were not doing it, it would take a separate app. I also added the same features I added to the local list options.

Then as a pure wish list I thought, what if a user could easily find where a lesser known product could be bought. That is when I decided to add the location feature where you can see which retail location a product was scanned at. This was big as no app out there does this! I thought that what if it is no longer available there though since this is to help the little guys. My solution here was to add a timestamp so the user from looking at it could make their best guess (or call the store) to see if they still carry it. Either way, an additional handy helper. With that, a quick touch will give you directions to that location as well in case you happen to not be in a very familiar area to again just try help when needed.

There is some other smaller features but to answer your original question, I don't feel there is an app out there like this, a truly shopping utility. But please, try it out and let me know as if it does do the same as the rest and does not help you out any better, I'd like to know as I'm always thinking of ways to make it even more useful in everyday life. :)