Swappa is a peer-to-peer marketplace for used phones, laptops, and other tech. Listings are for working devices, and Swappa checks serial numbers before a listing goes live, which makes it a trusted place to buy and sell used electronics.
A marketplace tells you what similar devices are listed for today. It doesn't tell you whether you'd get more by selling now or less by waiting. Predictye is built around that question.
What Swappa does well
A focused marketplace with rules that keep listings honest, and a clear view of what buyers are paying for a given model. When you're ready to sell, it's a strong place to list.
The timing question
Electronics lose value on a curve, and the curve is steepest early. Swappa's own research puts Apple Silicon MacBooks at roughly 15–20% value loss a year and Windows laptops nearer 30%. Knowing where your device sits on that curve tells you what waiting will cost.
What Predictye adds
Upload a photo and Predictye estimates what the item is worth now and in the years ahead. For specific models, our item value pages (like the iPhone 15 Pro Max) show recent eBay sale prices with projections based on published depreciation data.
What Predictye doesn't do
We don't host listings or handle sales. Use Predictye to decide when to sell, then use a marketplace like Swappa to find the buyer.
Frequently asked questions
Can I sell my phone on Predictye?
No. Predictye estimates value; it doesn't list or sell items.
How fast do laptops lose value?
Swappa's June 2026 figures put Apple Silicon MacBooks at about 15–20% a year and Windows laptops at about 30%.
Is Predictye free?
Yes. No account needed.