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DealIndex .ai
Every deal price-checked against 90 days of real data. No sponsored deals. No fake discounts.

Price report · first edition

DealIndex Price Report

April 2026

Methodology v1.0 · Data cut-off: 2026-04-30 23:59 BST · all reports

Headline

Data for April 2026 will be published here on 2026-05-01 at 08:00 BST.

Top 5 real price drops this month

Verified against stable RRP, actually-charged history, and the 90-day price floor. See /methodology for full criteria.

# Product Retailer RRP Sale price % off RRP 90-day low?
1 Data pending — publishes 2026-05-01
2 Data pending — publishes 2026-05-01
3 Data pending — publishes 2026-05-01
4 Data pending — publishes 2026-05-01
5 Data pending — publishes 2026-05-01

Top 5 fakest “deals” this month

Our differentiator. Ranked by the gap between advertised and verified discount.

# Product Retailer Advertised discount Actual vs 90-day median Fake pattern
1 Data pending — publishes 2026-05-01
2 Data pending — publishes 2026-05-01
3 Data pending — publishes 2026-05-01
4 Data pending — publishes 2026-05-01
5 Data pending — publishes 2026-05-01

Category winners and losers

Average genuine discount (excludes fakes) vs RRP, by category, April 2026.

Category Avg genuine discount MoM change Best day of month
Small appliances
TVs
Laptops
Fashion
Beauty
Home & garden

Retailer leaderboard

Ranked by genuine discount quality score v1.0. Retailers with fewer than 20 tracked deals are listed separately as “insufficient sample”.

Rank Retailer Quality score Avg genuine discount Fake-deal rate Deals tracked
1 Data pending — publishes 2026-05-01
2 Data pending — publishes 2026-05-01
3 Data pending — publishes 2026-05-01
4 Data pending — publishes 2026-05-01
5 Data pending — publishes 2026-05-01
6 Data pending — publishes 2026-05-01
7 Data pending — publishes 2026-05-01
8 Data pending — publishes 2026-05-01

Right-of-reply: every retailer named in this leaderboard received their row and contributing deals 48 hours before publication. Corrections accepted until 2026-04-30 18:00 BST.

Forecast scorecard

No entries this month — this is DealIndex’s first Price Report. From the May edition (covering April forecasts vs April actuals) we will publish hit rate, average error %, and the forecasts that missed hardest. We will never silently retire a miss.

Next month’s watchlist (May 2026)

10 products DealIndex predicts will drop in May, with target prices. Year-1 protocol: Keepa 3y history for Amazon ASINs; ≥2 external sources for non-Amazon SKUs.

Watchlist data pending — publishes 2026-05-01 at 08:00 BST.

Methodology

DealIndex tracks UK retailer prices continuously. We verify every advertised discount against a 90-day price history and a 180-day RRP observation window. A fake deal is any sale where the retailer either (a) inflated RRP ≥10% in the 30 days pre-sale, (b) never actually charged within ±2% of the claimed RRP in the prior 180 days, or (c) advertised a discount more than 2× the real saving vs the 90-day median.