Compare prices and see the price history
Mervo compares prices from stores in Finland and checks every advertised discount against the lowest price of the 30 days before the reduction.
How we check an advertised discount
Black Friday is coming: 27 November 2026 – 27 November 2026
During the sale we compare every advertised discount with the lowest price the same store applied in the 30 days before the reduction, and show it next to the offer.
How we check discounts
We save every price
We collect prices from the stores regularly and save every change as price history for each product and store.
We draw the reference line
When a store advertises a reduction, we find the lowest price that store itself charged in the 30 days before it.
We recalculate the discount
We compare the advertised discount with that line. If the store's figure does not match our records, we show both the advertised figure and ours.
Do you sell in Finland?
Listing your products on Mervo is free, and payment never affects whether or how you are listed. Stores whose advertised discounts match our records can show Mervo's price proof on their product pages.