Shopping online always left me with the feeling, I might pay too much for the same product as a result of being spammed by google ads, SEO and the likes. At the same time, I have spoken to 50+ online shoppers about their experience with price comparison sites and this is their feedback:

1. Not all products and shops are listed on price comparison sites.

2. Prices are often outdated. In fact, it turned out that e.g. the 10th best offer on a price comparison site is actually the cheapest.

3. Users have to manually check whether the better offer is exactly the same product variant as the sought-after product. This is extremely time consuming when checking for technical specs of e.g. a gaming PC.

I have just finished my PhD in AI and that is why I decided to solve these problems.

The price search is live under the link: https://josepha.io/en
It works for the currency areas USD, CHF and EUR.

It works with the following two steps:
- First, insert the product URL of a product you are about to buy
- Second, insert the email. The results will be sent to you via email, after the search was processed.

After you submit the product URL, it searches the entire web and determines which other shops offer the exact same product.

Some statistics up until now:
- Savings found: €29'264.01

- Total Search volume: € 297'424.49

- 50% of all single searches save more than € 6.07

I would greatly appreciate if you give it a try and comment with feedback.

What people fail to mention is price comparison website, like Portugal's kuantokusta.pt (it does include amazon but you can choose to not buy from there)
They are the most real alternative to amazon, since it will find the best prices. Google Products search also does this a bit. You can then choose to buy from a european store, and most likely cheaper than amazon :)

When you find something on amazon, you can also check the seller name and if it's not Amazon, you can buy from the seller store directly. Especially Brands! Plus you get better support without a "middle man".
You'll not only be buying from EU store, but hopefully from a national store :)