DealCheck vs Mashvisor: the short version
At a glance
| DealCheck | Mashvisor | |
|---|---|---|
| Primary job | Deal underwriting calculator | Nationwide STR/LTR research |
| Data freshness | User-entered data plus comp lookups | Aggregated listing + Airbnb data (nationwide) |
| Rent / value accuracy | As good as the inputs you enter; comps are limited by tier | Modeled LTR/STR estimates; not tied to local closed MLS leases |
| AI condo-doc review | No | No |
| Client output | Branded property reports | Property PDFs (Professional tier) |
| Price | Free–$20/mo | $49.99–$99.99/mo |
| Coverage | Nationwide (user-entered + comps) | Nationwide |
Pricing and features verified on each product's official site, June 2026.
The details
DealCheck is the better tool once you have a property in mind: enter the numbers and it returns cashflow, returns and a branded report cheaply. It doesn't help you discover or compare markets.
Mashvisor is the better tool earlier, when you're deciding where to invest across the country, including short-term rentals. Its estimates are modeled at a market level rather than built from your specific deal's inputs. The two complement each other more than they compete.
The third option: ReSharpe
Both DealCheck and Mashvisor are nationwide tools. If you specifically underwrite South Florida MLS deals, there's a third option built for exactly that: ReSharpe pulls live MLS data into every listing, calibrates rent and value on 100,000+ real closed South Florida transactions (~7% median rent error, 80% valuation bands), and reads the condo/HOA documents for hidden risk — then outputs a branded client report. It's narrower in geography on purpose, and deeper because of it. See ReSharpe vs DealCheck and ReSharpe vs Mashvisor.
Frequently asked questions
- What's the difference between DealCheck and Mashvisor?
- DealCheck is a low-cost underwriting calculator you populate to analyze a specific deal; Mashvisor is a nationwide research tool for screening rental markets and discovering properties. One underwrites a deal you found; the other helps you find and compare markets.
- Which is cheaper, DealCheck or Mashvisor?
- DealCheck is much cheaper — free to $20/mo — versus Mashvisor at $49.99–$99.99/mo. DealCheck does less market discovery; Mashvisor does less hands-on deal underwriting.
- Can I use both?
- Yes — many investors screen markets in Mashvisor, then underwrite a specific property in DealCheck. For South Florida, ReSharpe does both jobs on live MLS data with condo-document review.
Underwriting South Florida deals? There's a specialist for that.
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