Research

Data, not marketing.

Original data studies from one of the largest coupon verification datasets — promo code decline rates, seasonal savings trends, and merchant reliability rankings.

Flagship Report · Q1 2026

ReviewDecode Merchant Index

Top 100 merchants ranked by coupon reliability, discount depth, exclusion density, and verification health.

Coming soon — add blog posts tagged Research to populate this hub.
Data Studies

Seasonal Savings Trends

How Black Friday, Cyber Monday, and Prime Day discount depth compares year over year.

Guides

Fine Print Density Index

Which merchants hide the most restrictions in their promo terms — and how to read them.