Close Deals Faster.Manage Smarter.

The all-in-one calculator and portfolio platform for modern real estate investors. Run every strategy. Compare every deal. Know exactly what to do next.

Portfolio Snapshot
Total Value
$4.2M
▲ +12% this year
Active Listings
23
▲ +3 new this month
Avg. Yield
8.4%
▲ +0.4%
Deals Closed
7
This quarter

Monthly Cash Flow+$3,840
Cash-on-Cash Return8.4%
Gross Revenue (YTD)$892K
Portfolio Growth▲ +23% vs. last month
3 Strategies
Buy & Hold · Flip · BRRRR
Rent Optimization
Maximize income per unit
Multiple Scenarios
Compare deals side by side
Notes& Files
Deal notes and file management
Agent documents
Purchase agreements, disclosures, and listing sheets — stored with the deal.
On-site photos
Upload walkthrough photos and keep them attached to the property.
Inspection reports
Track what passed, what needs work, and estimated repair costs.
Deal notes
Log what the seller said, why you passed, or what to revisit next quarter.
Platform Features

Everything in one place.

Every property you look at tells a story. PropStack gives you a place to capture it — from the first numbers you ran to the reason you passed. Nothing gets lost between deal cycles.

Store documents your agent sent, photos from on-site inspections, notes on what the seller told you, and every scenario you modelled. When you come back to a property months later, everything is still there.

Rent Optimization

Simulate rent upside before you commit.

Model rent increases and value-add costs unit by unit. See exactly how each optimization affects monthly cash flow, annual uplift, and total property value — before you spend a dollar.

  • ✓Set a target rent and optimization cost per unit. Apply only the ones that make sense.
  • ✓Instantly see monthly uplift, annual uplift, and net value add using GRM.
  • ✓Plan impact summary shows total cost, net upside, and new property value in real time.
Unit Rent Optimization
Model rent and cost per unit. Apply to include in plan totals.
UnitCurrentOptimizedMonthly ↑Value add
Unit 1
$1,000$1,300+$300 / mo+$64,768
Unit 2
Hypothetical
$850$1,025——
Unit 3
$870$1,200+$330 / mo+$76,745
Unit 4
$1,200$1,200——
Plan Impact
Net upside after costs
+$141,513
Monthly improvement
+$1,880
New property value
$1,569,780
Multi-Strategy Analysis

One deal. Three strategies. One answer.

Enter your numbers once. PropStack compares every exit strategy side by side and recommends the best path for your goals.

Analyze long-term hold performance. Know your monthly cash flow, cap rate, and 5-year equity position before you sign anything.

Cash-on-Cash
7.4%
Monthly Cash Flow
$410
Cap Rate
6.1%
5-yr Equity
$61K

Strategy Inputs

Monthly rent
Vacancy rate
Property management %
Taxes & insurance
Maintenance reserve
Break-even occupancy
Best For This Deal
Buy & Hold
CoC 7.4%
Flip
ROI 22.1%
★ Recommended
Buy · Optimize · Refi

Based on ROI and capital efficiency, Buy · Optimize · Refi recovers 87% of your cash — ideal for scaling a portfolio.

How It Works

From address to decision.

Three steps. No guesswork. Know your best path before you make an offer.

1

Enter your deal

Input the deal as it stands today — purchase price, financing, acquisition costs, and rehab scope. Real numbers, no assumptions.

2

Model your scenarios

Adjust the inputs and watch the metrics move in real time. Change the purchase price, rent, or rehab scope to find the numbers that actually work.

3

Compare and decide

Line up your scenarios side by side. See which path wins for your goals and walk into every negotiation knowing exactly where you stand.

Pricing

Simple pricing. No surprises.

Start free. Upgrade when you're ready. Cancel anytime.

Starter
Free forever

For investors just getting started. Full calculator access, no credit card needed.

  • Multi-strategy calculator
  • 4 deal profiles
  • Buy & Hold, Flip, BRRRR
  • Side-by-side comparison
  • Portfolio dashboard
  • Live market data
  • Deal tracking
Get Started Free
Most Popular
Pro
$25 / month

For active investors managing a growing portfolio. Unlimited analysis and full platform access.

  • Unlimited deals
  • Multi-strategy calculator
  • Portfolio dashboard
  • Deal tracking (end-to-end)
  • Smart analytics & AI insights
Start Free Trial
About PropStack

About Us

Michael Sedlezky
Michael Sedlezky
Co-founder · Active real estate investor

“After years of investing across multiple platforms, I found myself constantly juggling tools that didn't talk to each other. The data was scattered, the workflow was inconsistent, and nothing was built the way investors actually think. I wanted to consolidate everything into one space — and give investors the flexibility to actually work with their numbers.”

Sean Morrier
Sean Morrier
Co-founder · Technical lead

“When I purchased my first property, I was struck by how fragmented and overcomplicated the process was. There was no clear solution for investors who were just getting started. I wanted to change that — so I applied my technical background to the problem, combined it with Michael's hands-on real estate experience, and built the tool I wished had existed from day one.”

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