A repricer is software that changes your selling prices automatically, according to rules you set, usually in response to what competitors are doing. On Amazon it is close to standard equipment; off Amazon it is far less common, and far less necessary than the marketing suggests.
How a repricer works
- It reads competing offers for the same product, continuously.
- It compares them to your rules: floor price, ceiling price, target position.
- It writes a new price back to the marketplace or store.
The third step is what separates a repricer from a price monitoring tool. A monitor tells you what changed and leaves the decision to you; a repricer decides and acts. That difference matters more than any feature list.
Rule-based vs algorithmic
Rule-based repricers follow instructions literally: "stay $0.01 below the lowest FBA offer, never below $18.40". Predictable, easy to audit, and the reason most price wars start — every seller running the same rule ratchets the price down until everyone hits their floor.
Algorithmic repricers optimise for profit rather than position, and will sometimes hold a higher price because winning the sale at that margin is not worth it. They cost more and are harder to explain when something odd happens.
The floor price is the whole safety system
Your floor must include landed cost, marketplace fees, payment fees, shipping, expected returns, and the margin below which the sale is not worth making. A floor set from gut feeling is how sellers discover they spent a quarter selling at a loss efficiently.
Do you need one?
- Probably yes if you sell the identical product against many sellers on a marketplace where the buy box decides everything, and prices move hourly.
- Probably not if you run your own store with a few real competitors and 20–100 products that matter. There, automatic price changes are risk without much reward: you cannot easily undo a bad rule that ran overnight.
For most independent stores the useful half is the monitoring half — knowing within an hour that a competitor moved, seeing whether it is a two-day promotion or a permanent cut, and deciding deliberately.
A middle path
- Track the competitor URLs for your top-selling products.
- Set alert thresholds instead of automatic changes — say 2%.
- Agree in advance what you do when an alert fires: match, hold, or bundle.
- Review the history monthly to see who actually initiates the cuts.
Prizeee handles that first half: competitor price history and email alerts on the URLs you choose, from €2.99 a month with a 7-day free trial — no catalogue import, no automatic changes to your shop.
Related: ecommerce pricing strategy and MSRP vs MAP vs RRP.