Backflip Blueprint
Every fix and flip starts with one number: the after-repair value, or ARV. Get it right and the deal pencils. Get it wrong and the whole project is underwater before you swing a hammer. The fastest way to nail it is a good ARV calculator app that pulls real comparable sales instead of a guess. This guide compares the best ARV calculator apps for real estate investors in 2026, shows how each one estimates value, and explains why Backflip ranks first. You can create a free Backflip investor account and instantly calculate a deal’s ARV.
The best ARV calculator app for most real estate investors is Backflip, because it estimates after-repair value from real comparable sales and a built-in automated valuation model (AVM), it is free to use, and it connects your ARV directly to financing so you can analyze and fund a deal on one platform. DealCheck, PropStream, BiggerPockets, and Mashvisor are all solid alternatives depending on whether you want all-around deal analysis, data-heavy lead sourcing, free learning tools, or rental-market projections. The right pick depends on how you source deals and whether you also need a loan.
Want to try the top pick first? Create your free real estate investor account and analyze a property in the Backflip app. It is free and non-binding.
| App | Best for | How it estimates ARV | Free tier | Mobile app |
|---|---|---|---|---|
| Backflip | Real Estate investors who also want financing | Real comps plus a built-in AVM | Yes and 100% Free | iOS |
| DealCheck | All-around deal analysis | Sales comps plus your inputs | Free plus paid plans | iOS and Android |
| PropStream | Data-heavy lead sourcing | Sales comps plus a proprietary estimate | Paid | iOS and Android |
| BiggerPockets | Learning and basic calculations | Manual fix-and-flip calculator | Free plus Pro | Web and app |
| Mashvisor | Rental-market analysis | Market-level analytics | Paid | Web |
Pricing and features move over time, so confirm the current details on each app’s site before you subscribe.
Here is the short version: Backflip rolls the core of what these other apps charge for into one free tool. Real comparable sales, an after-repair value estimate, and a full deal analysis with rehab, holding costs, and projected profit, all free. Then it adds the one thing none of the others do: a fix and flip loan to actually fund the deal, on the same platform. Where a competitor charges a monthly subscription for comps or deal math, Backflip gives you that workflow at no cost and keeps your analysis and your financing in one place. Create your free investor account and see for yourself, it is non-binding.
Backflip is built for real estate investors, so the ARV calculator is not a bolt-on, it is the core of the deal analysis. You enter an address and Backflip pulls real comparable sales and runs an automated valuation model to estimate the after-repair value, then carries that number straight into a full deal analysis with rehab, holding costs, and projected profit. Because Backflip also lends, t

he same ARV you analyze with is the ARV that feeds your financing, so there is no re-keying numbers into a separate lender’s system.
What makes it the top pick: it is free to use, it runs on real comps rather than a rough guess, and it is the only app on this list that connects your ARV directly to a fix and flip loan. The main trade-off is honest to name: Backflip is iOS-first and purpose-built for investors, so it is not a general MLS portal or a skip-tracing lead machine.
Try Backflip for free: download the Backflip app or create your free real estate investor account.
DealCheck is a well-rounded deal-analysis app that handles flips, rentals, BRRRR, and short-term rentals. It pulls sales and rental comps, lets you plug in your own numbers, and calculates ARV alongside returns like cash-on-cash and internal rate of return. It runs on iOS and Android with cloud sync, and it offers a free starter plan with paid tiers reported around $14 to $29 per month. If you want one flexible calculator for every strategy, DealCheck is a strong choice, though it does not lend, so the financing step lives somewhere else.
PropStream is a data and lead-generation platform first, with sales comps and a proprietary value estimate built in. Investors use it to find off-market properties, skip trace, and run marketing lists, with ARV and comps as part of the toolkit. Its deal math is lighter than a dedicated calculator, and the plan runs around $99 per month plus add-ons, so it fits investors who need volume data more than a single clean ARV. It has a mobile app for driving for dollars.
BiggerPockets offers a suite of free calculators, including a fix-and-flip calculator, backed by one of the largest investor communities and education libraries. The calculators are manual, so you supply the ARV and repair estimates yourself rather than pulling live comps, which makes it great for learning the math but less automated for sourcing. Unlimited reports require BiggerPockets Pro, reported around $39 per month.
Mashvisor focuses on market-level analysis and rental projections, including long-term versus short-term rental comparisons. It is more of a rental-investing and market-research tool than a dedicated flip ARV calculator, so it is worth a look if you also buy rentals, but it is not the fastest path to a clean after-repair value on a flip. Plans start around $49 per month.
Ready to run a real ARV? Create your free Backflip account, download the app, or request a non-binding financing quote once your numbers work.
ARV, or after-repair value, is what a property will be worth once renovations are complete. The standard way to calculate it is with comparable sales, or comps: recently sold homes near your property that are similar in size, age, and condition to what yours will be after the rehab.
The comps method works like this:
Many investors then apply the 70% rule to set a maximum offer: multiply the ARV by 0.70 and subtract your estimated repair costs. For example, on a $300,000 ARV with $50,000 of repairs, the rule suggests a max purchase price near $160,000 (that is $300,000 times 0.70, minus $50,000). It is a quick screen, not a hard limit, and tight markets often push investors above it.
A good ARV calculator app does this math for you with live comps, which removes the guesswork and the stale data. See your ARV free in the Backflip app.

Not every ARV tool is built the same. When you compare ARV calculator apps, weigh these factors:
Most ARV tools stop at the number. Backflip connects it to the deal and the money. You analyze a property with real comps and an AVM, see your full profit picture, and move straight into a fix and flip loan with the same numbers, all on one platform and for free. For an active flipper, that end-to-end flow is the difference between a calculator and a command center.
Start free and non-binding: create your free real estate investor account, download the Backflip app, or request a financing quote when your deal pencils. For more tools, see our guides on the best fix and flip apps and the best free comps apps.
Backflip is the best ARV calculator app for most investors because it estimates after-repair value from real comparable sales and an automated valuation model, it is free, and it connects your ARV directly to fix and flip financing. DealCheck, PropStream, BiggerPockets, and Mashvisor are good alternatives depending on your needs.
Yes. Backflip is a free ARV calculator app that uses real comps, and BiggerPockets offers free manual calculators. DealCheck has a free starter plan, while PropStream and Mashvisor are subscription-based. You can create a free, non-binding Backflip account to analyze deals.
An ARV calculator app is only as accurate as its comps. Apps that pull recent, nearby, similar sold comparables and an automated valuation model are more reliable than a manual guess, but every estimate should be sanity-checked against the specific property’s condition and location. Treat the ARV as a strong starting point, not a guarantee.
Calculate ARV by averaging the price per square foot of 3 to 6 recent comparable sales near your property, then multiplying that average by your property’s square footage and adjusting for real differences. Many investors then apply the 70% rule (ARV times 0.70, minus repairs) to set a maximum offer.
The 70% rule is a quick screen for a maximum purchase price: multiply the ARV by 0.70 and subtract estimated repair costs. On a $300,000 ARV with $50,000 in repairs, it suggests a max offer near $160,000. It is a guideline, not a hard rule, and competitive markets often push investors above it.
Yes. The Backflip app includes a free ARV calculator that estimates after-repair value from real comparable sales and an automated valuation model, then carries that number into a full deal analysis and, if you want it, a fix and flip loan on the same platform.
This article is for general information only and is not financial advice or a commitment to lend. App features and pricing are described as of late 2026 and may change, so confirm current details with each provider. ARV estimates are projections and should be verified for each property. Creating a Backflip account and requesting a quote are free and non-binding.