REAL ESTATE TOOLS. YOURS TO KEEP.
Focused calculators and mini apps built for the decision in front of you. Pay once, download the HTML file, and use it on every deal without an account or recurring fee.
START WITH THE DECISION IN FRONT OF YOU
BRRRR Calculator
How much cash you pull back out at the refinance, and whether the property still cash-flows after.
Rental Property Analyzer
NOI, cap rate, amortized debt, DSCR, cash flow and cash-on-cash in one private offline file.
Max Bid Calculator
The most you can bid and still hit your minimum profit. Write it down before the auction — never bid a dollar past it.
Rehab Budget Manager
Track rehab scope, budget, commitments and actual spend by line item.
Rental Ledger
Track charges, payments and balances by tenant in a private offline ledger.
Investor Portfolio Dashboard
See value, debt, equity, cash flow and occupancy across your recorded properties.
ONE STORE. FOUR INVESTOR WORKFLOWS.
Deal financing
Price the debt, offer and exit before you commit.
EXPLORE TOOLS →
Rental performance
Underwrite rent, expenses, returns and tenant activity.
EXPLORE TOOLS →
Rehab & construction
Control scope, budget, phases and work orders.
EXPLORE TOOLS →
Portfolio & comparison
Compare opportunities and see the portfolio as one system.
EXPLORE TOOLS →FROM PURCHASE TO YOUR FIRST SAVED DEAL
YOUR WORK STAYS WITH YOU
The calculator does not send property details to DLS. It runs locally, and Save creates a portable project file on your computer. Keep one file per property or copy the blank calculator for a new analysis.
COMPARE THE CALCULATORSBEFORE YOU DOWNLOAD
What am I buying?
A self-contained HTML calculator or mini app delivered in a ZIP file. It opens in a modern browser and includes instructions and a personal-use license.
Is this a subscription?
No. Each tool is an individual one-time purchase. You do not need an account and there is no recurring charge.
Does it work offline?
Yes. Extract the ZIP and open the HTML file in a modern browser. The calculator itself does not require internet or an API key.
How is my work saved?
Save creates a .dls.json project file on your computer. Open lets you continue later. You choose where the file lives and control its backups.
Does DLS receive my property data?
No. The downloadable calculators run locally. Your information stays in the browser tab and in the project files you save.
Can I use the files on more than one computer?
Yes, for your own use or within one business you own. Redistribution or resale is not allowed.
What is the refund policy?
Completed digital downloads are generally final, subject to applicable law. We help with duplicate orders, inaccessible delivery, or defective files.
YOUR NEXT DEAL NEEDS A NUMBER.
Choose the calculator for the decision you are making. Buy it once and keep using it.