Market Arc vs Keepa — Which Price Tracker Is Better for UK Shoppers?

Keepa is one of the most respected price tracking tools in the world. If you buy on Amazon, it is arguably the gold standard — detailed price history charts, reliable alerts, a massive database of Amazon products across multiple countries. For Amazon shoppers it is hard to beat.

The problem is most UK shoppers do not buy everything on Amazon. You buy clothes at Next or River Island. Electronics at Currys or Argos. Homeware at Wayfair or Dunelm. Furniture at John Lewis. Beauty at Boots or Look Fantastic. For all of those stores, Keepa does nothing.

This comparison covers what each tool actually does, where each wins, and how to decide which one is right for how you shop.

What Keepa does

Keepa is a browser extension and website that tracks price history on Amazon products across multiple marketplaces — US, UK, Germany, France, Italy, Spain, Canada, Japan, and more.

On any Amazon product page, Keepa overlays a detailed price chart showing the full history — sometimes years of data. You can see instantly whether a current sale price is genuinely low or whether the product regularly goes on sale and this deal is nothing special.

Alert system: create a free Keepa account, set a price threshold on any Amazon product, and receive an email when it hits your target. The alert system is reliable and well-tested.

Free tier: limited features. Premium subscription at approximately €19/month (about £16) unlocks the full feature set including seller statistics, buy box data, and API access.

Store coverage: Amazon only. Every marketplace Keepa supports is an Amazon marketplace.

What Market Arc does

Market Arc is a UK price tracker and competitor intelligence platform built specifically for UK retail. The browser extension works on 120+ UK stores — Amazon UK, John Lewis, Currys, Argos, Next, Nike UK, Wayfair UK, River Island, Burton, and more.

How it works: open any product page on any supported store, click the Market Arc extension, and the product is tracked. Set a target price — the specific amount you would actually pay — and Market Arc emails you the moment it drops to that level or below.

Monitoring happens server-side. Market Arc checks prices every hour automatically. You do not need to keep the browser open or check anything manually.

Free plan: 3 products, no time limit. Pro+ at £9.99/month for 25 products. Business plan at £49.99/month adds competitor tracking for e-commerce operators.

Store coverage: 120+ UK stores verified to work reliably.

Head to head

Amazon UK price tracking: both tools work. Keepa has more detailed historical data and a larger product database for Amazon specifically. Market Arc covers Amazon UK alongside 119+ other stores.

Non-Amazon UK stores: Market Arc covers them. Keepa does not.

Target price alerts: both tools let you set a specific price threshold and receive an email alert. Market Arc's alert system is newer but reliable. Keepa's has been tested by millions of users over many years.

Price history charts: Keepa wins on Amazon. Years of historical data, detailed seller analysis, buy box tracking. Market Arc shows price history for tracked products but is newer and has less historical depth.

Setup: both are browser extensions that install in one click. Both are straightforward to use.

Cost: Keepa premium is approximately £16/month. Market Arc free plan covers 3 products. Market Arc Pro+ is £9.99/month.

When Keepa is the better choice

If you shop primarily or exclusively on Amazon UK and want the deepest possible price history data, Keepa is the better tool. Its database is enormous, its charts are detailed, and its alert system has been refined over years of use by millions of shoppers globally.

Keepa is also particularly useful if you are an Amazon seller — the seller statistics and buy box data go well beyond what a consumer price tracker needs.

When Market Arc is the better choice

If you shop across multiple UK stores — and most UK shoppers do — Market Arc is the better choice. It is the only browser extension that covers John Lewis, Currys, Argos, Next, Nike UK, Wayfair UK, River Island, and Burton alongside Amazon UK.

The target price alert system means you set the price you would pay, walk away, and get an email when it is time to buy. You do not check anything. You do not monitor anything. Market Arc does it for you.

For UK shoppers who split their purchases across multiple retailers, there is no meaningful competition — Keepa simply does not work on most of the stores you shop at.

Can you use both?

Yes. They are not mutually exclusive. Keepa on Amazon for deep historical analysis. Market Arc for everything else and for the simplicity of one unified dashboard across all your tracked products.

The Market Arc free plan covers 3 products at no cost. You could run both tools simultaneously at zero additional cost if your Amazon tracking needs are intensive enough to warrant Keepa's premium.

The bottom line

Keepa is the best price tracker for Amazon. Market Arc is the best price tracker for UK retail broadly.

If your question is "has this Amazon product ever been cheaper and should I wait?" — Keepa answers it better.

If your question is "I want to buy this from John Lewis, Currys, or Argos when it hits my price — tell me when" — Market Arc is the only tool that can answer it.