This live data study measures how often the same promo code string turns up at more than one store, counted across every live promo code SimplyCodes tracks and recounted daily. The bands below sort every string by how many stores use it.
As of August 13, 2026, 81.01% of the 611,894 live promo code spellings SimplyCodes tracks appear at exactly one store. Spellings do repeat — 1,001 of them turn up at 100 stores or more — but each is a separate code held by a separate store, not one code that works everywhere.
- 1 store is where the market lives: 495,689 spellings, 81.01% of every live code spelling.
- The repeat tail is real but small — 100+ stores accounts for 0.16% of spellings, and they are ordinary words several stores happened to pick.
- A repeated spelling is not a code that travels: each store issues and honours its own, so trying one store's code at another is not a shortcut.
Share of spellings = that bucket's share of every live promo code spelling SimplyCodes tracks · Spellings = the count behind that share. Buckets do not overlap, so the shares add to 100%.
| # | Stores using the spelling | Share of spellings | Spellings |
|---|---|---|---|
| 1 | 1 store | 81.01% | 495,689 |
| 2 | 2–5 stores | 15.50% | 94,857 |
| 3 | 6–25 stores | 2.70% | 16,502 |
| 4 | 26–99 stores | 0.63% | 3,845 |
| 5 | 100+ stores | 0.16% | 1,001 |
5 buckets across 611,894 live promo code spellings · an all-store distribution, no individual store named and no code shown · checked August 13, 2026 · numbers last changed Aug 13, 2026. Refreshed daily.
Methodology
How SimplyCodes verifies codes. Behind every figure in this live data study is the SimplyCodes verification system. Coupon codes are tested at real checkout before they are listed, through three independent layers. Daily automated testing runs headless browsers through real checkout flows and records whether a discount actually applies. A human verification network of 10,000+ verifiers submits screenshot-and-timestamp proof, at 4.6M+ verification actions a month and 98% accuracy. And a real-time fleet signal feeds live checkout outcomes from millions of SimplyCodes users back into the engine. Each code carries a Health Score from 0–100, weighted by checkout outcomes, verifier consensus, and recency. With an estimated 40–60% of coupon codes on the public web dead, restricted, or fake, the system exists so a code earns its place by working at checkout, not by being collected.
How this study is built. We take every promo code SimplyCodes currently tracks as live, group them by their spelling with capitalisation and spacing ignored, and count how many separate stores use each spelling. Spellings shorter than three characters are dropped as noise. The counts below are the only thing that leaves our warehouse — the codes themselves are never read out, here or anywhere else on the site. A spelling shared by several stores is a coincidence of vocabulary, not one code with several homes: each store issues its own and decides on its own whether it still works. This is an all-store distribution, never a claim about a specific code or a grade on an individual store. Figures refresh with the data snapshot shown above.
Cite this data
As of August 13, 2026, 81.01% of the 611,894 live promo code spellings tracked by SimplyCodes appear at exactly one store.
According to SimplyCodes warehouse data (Cross-Store Code Duplication Study, August 13, 2026), 81.01% of live promo code spellings appear at a single store, while 1,001 appear at 100 stores or more.
