Is your Zestimate wrong? Zillow's algorithm uses broad ZIP code averages and hidden formulas. ShopProp Intelligence uses the 10 closest comparable sales with interactive adjustment sliders — so you can see exactly why a home is worth what it's worth. Free. Transparent. You control the data.
Try It Free →| Feature | ShopProp CMA | Zillow Zestimate | Redfin Estimate |
|---|---|---|---|
| Data source | Real MLS data | Public records + algorithm | MLS + algorithm |
| Number of comps | 10 hand-picked | Algorithm-selected | Algorithm-selected |
| Interactive adjustments | 7 sliders | None | None |
| Condition adjustment | Yes | No | No |
| View / waterfront factor | Yes | No | No |
| Outlier removal | Manual control | No | No |
| Overpriced listing flag | 20% Rule | No | No |
| Area ROI data | 1, 4, 6, 11, 21 yr | Limited | Limited |
| Map-based comp selection | Yes | No | No |
| Free to use | Yes | Yes | Yes |
| Sign-up required | No | Account for details | Account for details |
Yes. ShopProp's CMA tool is completely free — no sign-up, no email, no credit card required. Search any address to get instant comparable sales, fair value estimate, and full market intelligence with interactive adjustment sliders.
A CMA (Comparative Market Analysis) uses hand-picked comparable sales with manual adjustments for condition, location, and features — the same approach professional appraisers use. A Zestimate is Zillow's automated algorithm that relies on broad averages and public records without accounting for property condition, view quality, or recent renovations. ShopProp's CMA gives you 7 interactive sliders to fine-tune your value.
Yes. ShopProp's CMA tool lets you hand-pick which comparable sales to include from a map view, remove outliers that skew the data, and use 7 interactive sliders to adjust the estimated value in real time.
ShopProp's CMA mirrors the methodology professional appraisers use: hyper-local comparable sales, same property type matching, and manual adjustments for 7 value-driving factors. In real-world tests, ShopProp's CMA has identified properties listed 20%+ above fair market value that automated tools missed entirely.
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