Do Coupon Extensions Still Save You Money in 2026? Honey, Coupert and What Changed

For a decade, the default money-saving advice for online shoppers was "install a coupon extension". Honey built an enormous business on that advice — automatic code-testing at checkout, owned by PayPal since 2020, promoted by hundreds of YouTubers. Then, in late 2024, a detailed investigation by the YouTuber MegaLag made two serious allegations, and the conversation changed.

What the Honey controversy is actually about

The first allegation concerned creators, not shoppers: that Honey replaced the affiliate attribution of the very creators promoting it — even in cases where it found the user no discount at all — capturing commissions that would otherwise have gone to the person whose link the shopper clicked. The second allegation concerned shoppers directly: that merchant partnerships meant Honey did not always surface the best publicly available code, by design.

As of mid-2026, a consolidated class action over the attribution practice is in active discovery in a US federal court, and PayPal has publicly acknowledged and disabled some of the code at issue. None of that has been finally adjudicated, and Honey continues to operate. But the core promise of a coupon extension — "we show you the best code we know about" — is precisely the promise the litigation calls into question, and shoppers are entitled to weigh that.

Coupert and the alternatives: same model, less baggage

Coupert is the most prominent alternative — functionally the same auto-apply model with a cashback layer on top, a large code database, and strong store ratings (around 4.7 on the Chrome Web Store). The recurring complaints in user reviews cluster around the cashback side: withdrawal friction and accounts losing accumulated balances. Treat any extension cashback as a pleasant bonus rather than money in the bank, and the experience matches expectations.

It is also worth being clear about what every coupon extension shares, regardless of brand: the codes either exist or they do not. On most UK checkouts, most of the time, there is no working public code — the extension spins, tries a list, and applies nothing. When a code does land it is typically 5–15% on fashion and beauty, and rare on electronics, groceries and marketplaces. The savings are real but lumpy.

The structural problem: coupons optimise the last step

Here is the framing that matters more than which extension you pick: a coupon optimises the price of the item where you already are. It does nothing about whether that item is the right price in the first place — and the spread on identical items across UK retailers and marketplaces is routinely 10–20%, which is larger than almost any coupon.

Concrete examples from our own recent price checks: an Oral-B electric toothbrush around £45 cheaper on eBay than the price on the page the shopper was viewing; a Ring video doorbell with a £45 gap; everyday toiletries a few pounds apart for the identical product. No coupon code closes gaps like that — only checking another retailer does.

A sensible 2026 setup

• Compare the price first. A price-comparison extension (our free WEM Price Compare for Chrome and Edge does this automatically on Amazon and eBay product pages) addresses the biggest lever — what you pay for the item.
• Run a coupon extension alongside if you like — they do not conflict. If you are choosing one today, Coupert currently carries less baggage than Honey; just treat its cashback as a bonus.
• For purchases over £100, also check a dedicated cashback site in a separate tab — their rates beat extension cashback on big tickets.
• Ignore "savings found!" theatre. The only number that matters is the final price at the retailer versus the best price elsewhere.

The honest bottom line

Coupon extensions still save money sometimes, and installing one costs nothing. But 2026 is the year their halo came off: the category leader is in litigation over how it treated the creators who built its audience, and the structural truth was always that coupons trim the edges of a price you have not checked. Do the comparison first. Stack the coupon second. In that order, both tools earn their place — and a full disclosure from us: WEM is a price-comparison service funded by affiliate commission, with checkout always on the retailer and identical pricing either way.