What features matter most in a flip analyzer?

Question

I’m working on a flip calculator and want to make sure I’m building something actually useful. Currently it calculates profit, ROI, and deal quality based on purchase price, renovation budget, ARV, and holding costs.For experienced flippers - what am I missing? What would make a tool like this worth using regularly?Appreciate any input.

Shahinaz Soliman · Answer

Hi Joshua — great question, and I completely agree these are the core inputs.

From what I’ve seen, the tools that become “daily use” for flippers usually add a few missing layers beyond ROI math:

✅ Risk scoring (permits, neighborhood, complexity, time-to-renovate uncertainty)

✅ Sensitivity ranges (ARV ±5–10%, rehab overrun scenarios)

✅ Holding cost automation (taxes, insurance, utilities, lender interest tied to timeline)

✅ Contractor bid + workflow integration (not just analysis, but execution)

✅ One-click shareable deal card for partners/lenders

I’ve actually been building something along these lines called FlipScore™ — a quick 1–10 deal scoring + ROI + holding-cost breakdown system designed specifically for fixer investors.

Would love to hear what pain point feels biggest for you:

ARV accuracy, rehab surprises, or holding time overruns?

Appreciate you starting this discussion.

Denise Supplee · Answer

Hi @Joshua Rodriguez, I haven’t done a flip on my own, but I have invested in flip projects  through my club, and from watching the operators and going through the vetting process, I’ve learned a lot about what matters in evaluating deals. Consider including financing costs, carrying costs like taxes and insurance, selling expenses, and the projected timeline to calculate annualized returns.

Adding the ability to run sensitivity analyses for ARV, rehab costs, or holding period can help flippers stress-test deals and make the tool valuable for regular use.