BNBCalc vs AirDNA 2026: Which One Do You Actually Need?

Are you trying to pick one subscription to research short-term rental markets and run the numbers on a house you're about to finance? Well, I'd pick BNBCalc, and since we're the ones who build it, you'll want to keep that in mind. BNBCalc Markets does the research, then the BNBCalc Calculator that comes with it runs that house through the mortgage to your return, all behind one login.

So where does that leave AirDNA? It researches markets too, and its Rentalizer has an Investment Return Calculator that takes a revenue estimate down to operating expenses, net operating income (NOI) and a first-year cap rate. Those numbers describe the property, though, and your deal has a loan on it that changes every number after it. That loan is where AirDNA's numbers stop, and while it's a small step, it decides this whole comparison.

BNBCalc vs AirDNA: The Short Version

Side by side, they match for most of the job, since both research markets worldwide and both work out a property's running costs. Where they split is the loan. When I went through AirDNA's help pages in September, they took me as far as expenses, NOI and a first-year cap rate. All three leave the loan out.

BNBCalc keeps going, and that's the part I'd care about if I were borrowing. If you give it the purchase price, down payment, loan amount and rate, you'll get back your cash-on-cash return, cumulative cash flow and principal pay-down. That's both jobs on one subscription for $79 a month, as of September 2026.

The job	BNBCalc	AirDNA
Market research	Rank markets by revenue, or by gross yield in the US, then screen them on a map on occupancy, ADR, RevPAR and lead time, with 3+ years of history and six heatmaps	Market Explorer and Rentalizer, tracked since 2014, with history by plan: 12 months on the $0 plan, 36 on Market Research
Listings	Every Airbnb and Vrbo listing in the market, filtered by bedrooms, performance tier, listing age or operator	Comparable Sets and Property Performance on the paid plan, plus a Rentalizer Agent that re-ranks comps
Comps	Build, save, share and export a comp set as a 26-column CSV, with operator analysis on top	Comps within a 10-mile radius on bedroom, bathroom and guest count, with a Comp Set Strength score
Property revenue	AI revenue predictions with seasonality, built on up to 50 comps you can open and grade	Rentalizer projects revenue, occupancy and ADR from comps, including the cleaning fee but not the host fee or taxes
Expenses	Up to about twenty expense lines suggested one by one, each with a confidence level and a reason	Operating and start-up costs you enter over pre-filled defaults, adding up to total operating expenses
Financing	Purchase price, percent down, loan amount, mortgage length and rate, returning the monthly payment	Its help pages stop at expenses, NOI and a cap rate, which all leave the loan out
Returns	Cap rate, cash-on-cash, cumulative cash flow, equity and principal pay-down, appreciation, plus US depreciation	NOI, and a first-year cap rate its help centre ties to a cash investment
Coverage	Worldwide: roughly 2,400 markets across 157 countries, four in five outside the US	Worldwide too. It draws market boundaries differently, so the two market counts measure different things
Price, as of September 2026	Calculator $30/mo or $199/yr; Markets $79/mo or $399/yr, and Markets includes the full Calculator	$0 plan; Market Research $125/mo or $400 billed annually; Adapt $20/mo per listing; Property Manager quote-only
How you try it	Two property analyses free, or a 7-day free trial with full access	A $0 plan with a limited Rentalizer and 12 months of history; no free trial on Market Research

From Market to Returns: How BNBCalc Works

For that $79 you get two products, with the steps in the order you already work: market, listings, comps, property, expenses, financing, returns. Markets handles the first three and the Calculator the last four. The same search bar sits on the Markets pages, so a city opens the market and an address opens an analysis.

In Markets you rank markets by revenue, or by gross yield if you're buying in the US, then screen them against occupancy, ADR, RevPAR and booking lead time. Each has 3+ years of history, and six map heatmaps show revenue, nightly rate and performance.

From there you drop into every Airbnb and Vrbo listing in the market and filter them by bedrooms, performance tier, listing age or operator. Save the ones that matter as a comp set to share or export as a 26-column CSV.

Next you type in an address, and the Calculator runs that property four ways: as a short-term rental, an arbitrage play, a long-term lease or a cohosting deal. Every revenue estimate is built on up to 50 comps, which you can open yourself.

Then the model reads the photos on both sides, grades each comp, explains the ones it threw out and flags whether the set leans high or low. After that, you pick what the number gets built from, whether that's its picks, your own set, the top 50% of comps or a manual override.

Expenses come next, and I think this is where most spreadsheets go wrong. Instead of one flat percentage, the Calculator suggests a number for up to about twenty expense lines, each with a confidence level and a reason you can argue with.

Once you add the purchase price, percent down, loan amount, term and rate, it gives you the monthly payment. Then you get cap rate, cash-on-cash, cumulative cash flow, equity and principal pay-down, plus a lender-ready PDF or an Excel file.

To be straight with you, though, the two products don't pass data to each other, so you won't pull a saved comp set into an analysis. What you get is one bill and one search box.

BNBCalc Markets vs the BNBCalc Calculator: Which Plan You Need

So which plan do you need? That comes down to whether you've picked a city.

Markets includes the full Calculator, so as of September 2026, $79 a month gets you both.

The BNBCalc Calculator, $30 a month or $199 a year: unlimited property analysis, AI revenue predictions with seasonality, professional PDF reports, a tax calculator with depreciation (US rules), expense and mortgage modeling, and ROI and cash-flow projections.

BNBCalc Markets, $79 a month or $399 a year: everything in the Calculator, plus every Airbnb and Vrbo listing in any market, custom comp sets, market rankings by revenue or ROI, and 3+ years of historical data.

Do you already own the place, or know exactly where you're buying? Then I'd get the Calculator on its own, since it does the whole job.

My advice is to buy Markets while the question is still which city, because one address can't answer that.

Where AirDNA's Numbers Stop

AirDNA answers the which-city question too, though on one property it doesn't go as far as BNBCalc, which carries the same house through the loan. I read its help centre in September, and it says the Investment Return Calculator shows your operating expenses and net operating income. If you enter a purchase price, it adds a first-year cap rate, and that's where its help pages stop.

Is that a gap in AirDNA's software? No, because the limit is built into what those numbers are. Net operating income is the gross revenue estimate minus those expenses, so it's income before the mortgage payment. A cap rate is that income divided by the purchase price, which makes it the return you'd get if you paid cash.

AirDNA's own help centre says as much, telling you to enter a purchase price "if you're making a cash investment". That page was last updated in June 2026, and it still read the same way when I checked in September.

Does AirDNA's newest tool change any of that? I checked its help page too, and it doesn't. AirDNA wrote up the Rentalizer Agent in its help centre in August 2026, and the agent reads comps, guest reviews, demand drivers and local short-term rental rules for you.

Its check on local rules is a real step up for research, though BNBCalc still gets my vote, because that help page ends at a cap rate, while the Calculator carries on through the loan. The page says its financial calculator takes operating expenses, taxes and management fees to reach "your ultimate cap rate."

I found two more details in its help centre that change what the cap rate is built on. First, its projected revenue includes the cleaning fee but not the host fee or taxes, so the NOI starts from a number those still have to come out of.

Second, the estimate assumes the place can be booked every night of the year, "assuming full availability for 365 days," in AirDNA's own words. If you block off three weeks a year for family, expect your real revenue to come in under its number before you've paid a cent of interest.

So AirDNA's numbers describe how the property does, not how your deal does, and the loan half is left to you.

Data Accuracy: Market-Wide Numbers and One Address

That half is only worth working out if the revenue number under it holds up, so how far can you trust it? I opened AirDNA's accuracy page in September, and the figures on it checked its estimates for Airbnb as a company against Airbnb's filings with the SEC. So they measure nights booked, gross booking value and revenue across the whole platform.

None of them measures the estimate for one address, and the latest check on the page is from Q3 2023. As a claim about Airbnb's whole business those figures are impressive, but they say nothing about your address, which is why I'd still pick BNBCalc for one house: you can open its comps and see why each made the cut.

I also read Dennis Shirshikov's April 2026 review, which puts Rentalizer's error at 15 to 30 percent in either direction, and wider for places that don't look like the rest of their area. His piece runs on Awning, which sells a competing estimator, so I'd weigh it with that in mind. So let's say the estimate comes back at a clean $60,000. If you apply that range, you're looking at anywhere from $42,000 to $78,000, which is a different picture from one neat number.

BNBCalc's answer is to show its work, so you can argue with the number before you borrow against it. Every estimate sits on up to 50 comps you can open, each graded on product, bedroom count and amenity fit.

Even so, we hit the same limit every model hits, and I'd rather say it plainly. No model sees your photos, your hot tub, your water pressure, or whether you answer the phone at 11pm. That part comes down to you, and since no subscription will price it, make sure to underwrite the low end.

BNBCalc vs AirDNA Pricing

Marking an estimate down is free, but the subscriptions aren't, so what does each one cost? When I opened AirDNA's pricing page in September, set to US prices, Market Research was $125 a month against $79 for BNBCalc Markets. That makes Markets the cheapest full market-research plan you can buy month to month, as of September 2026. If you pay yearly, though, the gap all but disappears, at $399 against $400. So check how you'll pay before you count the difference as a saving.

The page I saw had four self-serve cards. AirDNA does have a $0 plan, with a limited Rentalizer and 12 months of history, and Market Research opens that up to 36 months. Adapt costs $20 a month per synced listing, but it's a dynamic pricing tool for setting nightly rates, not deciding whether to buy, and Property Manager is quote-only.

AirDNA's pricing page shows no free trial on Market Research, and the 30-day trial it advertises belongs to Adapt. With BNBCalc you can run two property analyses free, or start a 7-day free trial with full access, and once you're charged there's a 14-day refund window.

BNBCalc doesn't sell institutional data licensing, so there's no bulk data feed, no enterprise contract tier and no contact-sales motion. AirDNA does, through the four contact-sales products I found on the other tab of that pricing page. That matters to a lender or a fund buying data in bulk, but for one house, BNBCalc's per-deal numbers are the part you'll use.

I went through AirDNA's terms of service too. Subscriptions renew automatically, and a cancellation only counts if it lands at least two business days before the renewal date. AirDNA's Trustpilot rating was good when I checked, 4.6 out of 5 across 943 reviews, and I'd still point you to BNBCalc, since the one-star reviews I read tended to be about billing. BNBCalc's 7-day trial and 14-day refund window let you test the numbers long before any renewal.

So whatever you sign up for, ours included, I'd set a reminder that same day.

Frequently Asked Questions

Which Is Better for Short-Term Rental Investors?

BNBCalc, for anyone buying with a mortgage. BNBCalc Markets does the market research, and the BNBCalc Calculator it includes runs the numbers with your loan. That adds cash-on-cash, cumulative cash flow and principal pay-down to the cap rate. AirDNA's help pages stop at a first-year cap rate, which leaves the loan out, and its help centre ties that cap rate to a cash investment.

Is BNBCalc a Good AirDNA Alternative?

Yes. Both cover markets worldwide and both work out a property's running costs, so the research half is much the same. After expenses, BNBCalc takes a purchase price, down payment, loan and rate, then gives you the returns you only get once there's a loan on the deal. Month to month it's $79 against $125, as of September 2026.

Which Is Cheaper, BNBCalc or AirDNA?

Month to month, BNBCalc. As of September 2026, BNBCalc Markets is $79 a month against $125 for AirDNA's Market Research plan, and the BNBCalc Calculator on its own is $30 a month. Paid yearly, they're a dollar apart, $399 against $400, so the saving only shows up on monthly billing. AirDNA also has a $0 plan with a limited Rentalizer and 12 months of history.

Does AirDNA Include Financing in Its Numbers?

AirDNA's help pages stop at total operating expenses, net operating income and a first-year cap rate. All three leave the loan out, since net operating income is income before the mortgage payment. Its help centre ties that cap rate to a cash investment. BNBCalc takes the purchase price, percent down, loan amount, mortgage length and interest rate, then gives you the monthly payment, cash-on-cash return, cumulative cash flow, equity and principal pay-down.

Does BNBCalc Cover Markets Outside the US?

Yes. BNBCalc Markets covers roughly 2,400 markets across 157 countries, about four in five outside the US, with Europe the biggest region by number of markets. Each one has revenue, occupancy, ADR, RevPAR, booking lead time and three-plus years of history. Two things are US only: gross yield, and the depreciation tool, which follows US rules.

The Bottom Line

So if you're going to own the property and pay a mortgage on it, buy BNBCalc. Markets finds and ranks the market, and the Calculator it includes runs the house with the loan on it, both for $79 a month as of September 2026. AirDNA's help pages are good, and we still recommend BNBCalc, because the numbers on those pages stop at a cap rate, while BNBCalc takes you through the mortgage to your cash-on-cash return and cash flow.

Our full AirDNA review covers where its data holds up and where it thins out, and the AirDNA alternatives and data and analytics roundups cover who else is out there.

Ready to price a house you're looking at? Start on the pricing page, where you can run two property analyses free or start a 7-day free trial with full access.

Whatever you pay for, the number that gets people into trouble is the confident one. A single revenue estimate is only the middle of a range, however exact it looks, and the only honest thing to do with it is push it down, put the loan on top, and see whether the deal still stands up. If it only works at the top of the range, it doesn't work.