DEALISIA
About Dealisia & our approach
Understand your options. Compare the evidence. Make your own choice.
What Dealisia adds
Dealisia brings buying guidance, product specifications, recorded prices and price alerts together. Our guides help you turn a broad question into concrete buying criteria. They are original explanatory content, separate from supplier descriptions, and are not hands-on tests or product endorsements.
Where the data comes from
Retailer feeds supply offers and prices. Product information may be enriched with manufacturer data through Icecat. Our catalogue reflects the feeds available to us; it is not a complete view of every retailer, country or product. Matching and feed data can contain errors. Check the exact model, condition, delivery cost, stock and current price at the shop before ordering.
How price drops are selected
The homepage uses a precomputed selection of active retailer offers for products in our database for at least a month. An offer must have fallen since an observation before the last six days and be at least 5% below its time-weighted median recorded price over the previous 30 days. Days without a new observation carry forward the last recorded price where available. We keep the largest qualifying drop per product and rank by percentage. These percentages exclude shipping; they are not product quality scores. The last successful selection remains visible if an update fails.
How affiliate links work
Some links to shops are affiliate links. Dealisia may earn a commission when you make a purchase through one. The current price-drop calculation ranks recorded percentage changes, not commission rates. Affiliate availability does affect which retailer feeds we can include, so our coverage is limited. You buy from the retailer; Dealisia does not sell or ship the products.
How to read our guides
Each guide shows its publication date and links to sources used for factual background. Practical examples and calculator inputs are labelled as examples. We distinguish general buying guidance from hands-on testing and do not claim personal experience with products we have not tested. Check the current manufacturer documentation for the model you plan to buy.