Research & Insights
Shopping, Decoded.
Data, not marketing. Original research from the world's largest verified coupon database. 500,000+ stores. 5.6 million monthly code verifications.
Latest
Methodology
Why SimplyCodes Built a Browser Extension (And What It Does Differently)
Methodology
Why SimplyCodes Verifies Every Code Instead of Only Listing Them
Methodology
Does SimplyCodes Work At Big Retailers? 500,000+ Stores
Methodology
Can You Trust a 5-Year-Old Coupon Tool? 78 Million Checkouts, Verified
Data Studies
Coupon Statistics 2026: The State of Shopper Trust in Promo Codes
Methodology
More Than an Extension: How SimplyCodes Works Across Web, App, Browser, and AI Agents
Methodology
Cashback vs. Verified Codes: Why We Compete On Accuracy, Not Points
Shopping Guides
The Best Time to Buy Furniture in 2026: Month-by-Month Data from 2,150 Retailers
Data Studies
Where to Find Grocery Coupons: 12 Months of Verified Code Data Across U.S. Grocery Retailers
Data Studies
The Brands That Will Never Give You a Coupon Code (4 Years of Data)
Shopping Guides
Do Coupon Extensions Actually Work in 2026? (We Tested Across 500,000+ Stores)
Data Studies
Coupon Browser Extensions Privacy Compared: What Your Extension Can Actually See
Data Studies
Adidas vs Nike Promo Codes: An 11-Month Verification Study
Shopping Guides
Which Retailers Have the Most Reliable Promo Codes? A 90-Day Checkout Reliability Ranking
Data Studies
The Most Underrated Stores for Promo Codes: A 3.7 Million Code Study
Data Studies
Why Some Brands 'Always Have Codes'—and Others Never Will (14.8k Brand Analysis)
Shopping Guides
Viral TikTok Brands With Discount Codes: Over 30,000 Codes Analyzed
Data Studies
Percentage-Off vs. Dollar-Off Coupons: Which Saves More? (1.4M-Code Analysis)
Shopping Guides
How Much Does DoorDash Really Cost? A 26-Month Study
Shopping Guides
Which Online Stores Offer Student Discounts? We Analyzed Millions of Deals to Find Out
Shopping Guides
Go Deeper
Understand the engine.
Overview
How It Works
The consumer-friendly guide to our three-layer verification methodology. How codes move from unknown to verified.
Read moreTechnical
Anatomy of a Verdict
The full technical deep-dive. Proof Packets, evidence traces, confidence scoring, and the decision framework behind every verdict.
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