GuidesUpdated By Federico Ragusa
How we compare second-hand prices
We compare second-hand prices model by model: for a phone with its storage, a record, a camera body or a LEGO set, we gather the offers sellers publish on several sites and show what each one costs you in total, postage included.
We sell nothing and hold no stock, and every offer takes you to its seller. The figures on our pages come from the rules on this page, including what we leave out and why.
Where the offers come from
We read offers from sites and shops where private sellers and businesses sell second-hand: eBay, Vinted, Wallapop, Etsy, CardTrader, and refurbished and second-hand book shops where their catalogues are available. Which sites depends on the country.
Each language of the site is a country: English pages compare offers that post to the United Kingdom, Italian pages Italy, German Germany, French France, Spanish Spain. An offer that does not post to your country does not appear on your pages.
One exact model per page
A 128 GB iPhone 13 and a 256 GB one have two prices, so they get two pages. Each listing is matched to one exact model, with its storage or edition, when the seller states them. A listing too vague to say what the item is does not go on any page.
When a model comes in several versions, one more page brings them together, each with its own price, so you can move from one to the next.
What you pay in total
The figure we show is what you pay in total: the item, postage to your country, and the fee the site adds for the buyer, where there is one. That is the only fair way to put two offers side by side.
If the seller does not state postage, we never count it as free: the offer goes in a separate list, with the item price alone, and stays out of the comparison.
The price range and the typical price
We only compare offers for the same model in the same condition, with postage stated. From three offers up we work out the typical price, the one in the middle. From five up we also show the price range: the middle half of the prices, what half the sellers are asking.
With fewer offers we say so rather than invent a range. Every offer shows where it stands: below the range, inside it, or above it.
- Offers are listed cheapest first, postage included.
- The condition is the one the seller declares.
- Good, very good and like new are compared together; every other condition on its own.
What we leave out
Some offers stay on the page but are kept out of the comparison, or never become the price we start from, because a comparison that included them would tell you something untrue.
- A part sold on its own under the model name: the charging case, one earbud, the empty box.
- An item the seller says is faulty or needs repair.
- A price far below every other for the same model: almost always something else, or bait.
- A price ten times above the rest: usually a placeholder, not an offer.
When we read the prices
We read offers again several times a day, at a different pace for each site, and remove the ones no longer for sale. Every page says when its offers were read. A listing can change afterwards: the price that counts is the one on the seller's site when you buy.
A model only goes to search engines once it has at least two offers to compare: a single offer is a listing, not a comparison.
Who we are and how we earn
NotDone is an independent project by Federico Ragusa. We sell nothing: every offer takes you to the seller's site, where you buy on their terms.
Some links are affiliate links: if you buy, the site pays us a small commission, and your price does not change. The order of the offers does not depend on it. If you spot a mistake, a wrong price or one model mixed up with another, write to hello@notdone.app and we will fix it.
Does the price I see include postage?
Yes, whenever the seller states it: the price we show is the item, plus postage to the United Kingdom, plus any fee the site charges the buyer. If postage is missing, the offer is listed separately and kept out of the comparison.
Does NotDone earn anything if I buy?
Sometimes. Some links are affiliate links: if you buy, the site pays us a small commission. Your price does not change, and the order of the offers does not depend on it: they are always listed cheapest first.
Why is a very cheap offer not at the top?
Because a price far below every other for the same item usually belongs to something else: a part sold on its own, a broken unit, a bait listing. The offer stays on the page, but we do not use it as the starting price.
How often are prices updated?
Several times a day, at a different pace for each site. Every page says when its offers were read; a listing can change afterwards, and the price that counts is the one on the seller's site.