Industry: PropTech

PropTech — What's Going On (May 2026)

The Short Version

Real estate tech (called "PropTech") is big and growing, but well-funded startups already own every price level. Zillow, CoStar, and Apartments.com control how people find listings. Buildium, Rentec Direct, and TurboTenant own property management software for small landlords at $40–150/month. Follow Up Boss, LionDesk, and kvCORE own the tools real estate agents use to manage clients, priced $25–500/month. The path for a solo founder means picking a narrow, specific task nobody else has built well: analyzing rental deals for individual investors, tracking lease rules and renewal deadlines for small landlords, or showing Airbnb-style hosts what they're really making after costs. These aren't exciting, headline-grabbing ideas — they're "help me avoid typing this into a spreadsheet" tools — but that's exactly where people will actually pay $19–29/month.

How Big Is This, Really?

The headline numbers:

  • Mordor Intelligence: PropTech is worth $45.2 billion in 2025, growing to $120.74 billion by 2031 (about 17.79% bigger every year)
  • Fortune Business Insights: $40.19 billion in 2025, growing to $104.57 billion by 2034 (about 11.9% bigger every year)

Who actually pays for this stuff:

  • Real estate agents and brokers use Follow Up Boss ($58/month), LionDesk ($25/month), or kvCORE ($400+/month). Already crowded
  • Small landlords (1–20 units) use TurboTenant (free, or $99/year), Rentec Direct ($40+/month), or Stessa (free accounting). Competitive already
  • Property management companies (20–500 units) use Buildium ($52+/month) or AppFolio ($1.25+ per unit/month). Not something a solo founder can realistically sell to
  • Real estate investors (people who buy and hold rental properties) use the BiggerPockets Calculator (free version, or $39/year for the paid version) or DealMachine ($49+/month for finding deals). This group is underserved when it comes to actually running the numbers on a deal
  • Short-term rental hosts (Airbnb/VRBO) use AirDNA ($20+/month for market data) or PriceLabs ($20+/month for automatic pricing). Competitive, but there are real gaps in what these tools do

Who's the best customer for a solo founder? Small landlords (1–15 units) managing their own properties, and everyday real estate investors doing the math on rental deals themselves. Both groups pay for tools out of their own pocket instead of relying on spreadsheets.

The Real Problems People Have

Figuring out if a rental deal is actually a good deal (r/realestate, r/realestateinvesting, r/financialindependence)

  • A common question: "I found a potential rental property — how do I quickly figure out if this deal makes sense?"
  • The BiggerPockets Rental Property Calculator is the main tool people use, but the free version is very limited
  • What people actually want: a quick way to check cash flow, cap rate (how much a property earns compared to its price), cash-on-cash return, and whether rental income covers the mortgage — all in one place
  • Investors typically check the numbers on 20–50 properties before they actually buy one — they want something fast and repeatable
  • There's no clean $19/month alternative to BiggerPockets Pro ($39/year) that's faster and easier to use

Not knowing the rules for renewing or ending a lease (r/Landlord)

  • A common complaint: "My tenant's lease ends in 3 months and I have no idea what notice period I need to give in my state"
  • Small landlords don't track lease renewal deadlines, state-specific notice periods, rent increase limits, required habitability inspections, or security deposit deadlines
  • There's no $19/month tool built specifically as a compliance calendar and renewal reminder for landlords
  • One missed notice, or the wrong timeline, can cost $500–3,000 in penalties, or even mean a landlord loses the legal right to evict a tenant

Not knowing your real profit on a short-term rental (r/airbnb, r/vrbo)

  • Hosts can see their income in the Airbnb or VRBO dashboard, but there's no way to track cleaning fees, restocking costs, maintenance, and platform fees together in one place
  • What people actually want: "I need to know my actual profit per booking after all the costs — not just what Airbnb pays out"
  • Stessa (free) handles regular long-term rental accounting well, but isn't built for tracking individual short-term bookings
  • AirDNA and PriceLabs focus on pricing and market data, not on tracking your actual expenses

Who Else Is Already Building This

Real estate agent tools (crowded — skip this)

  • Follow Up Boss ($58/month), LionDesk ($25/month), Chime, and kvCORE all have big user bases already
  • Verdict: skip this entirely

Small landlord property management (competitive)

  • TurboTenant (free, or $99/year), Rentec Direct ($40+/month), Landlord Studio ($12+/month), Stessa (free)
  • Verdict: the general tools are already commoditized, but there's room in specific compliance tools

Real estate deal analysis

  • BiggerPockets Calculator — $39/year for the Pro version, solid but slow to use and the free version is very limited
  • DealMachine — $49+/month, mostly focused on finding leads, with basic deal math included
  • REIkit — deal analysis for house flippers ($49+/month), fairly complicated
  • The gap: a clean $19/month tool that runs the numbers on a rental deal — cash flow, cap rate, cash-on-cash return — in under 2 minutes

Lease compliance tracking

  • There's no dedicated tool here — landlords use generic calendar apps, or nothing at all
  • The gap: a $19/month compliance calendar that knows the notice requirements for each state

Short-term rental tools

  • AirDNA ($20+/month) and PriceLabs ($20+/month) are both about pricing and market data
  • The gap: an expense tracker that shows your actual profit per booking

What You Could Actually Build

BEST BET — A Rental Property Deal Calculator

  • Why: everyday real estate investors check the numbers on 20–50 properties before buying one, and they want something fast and repeatable
  • Who would pay: people investing in rental properties on their own, at $19/month, or $5 per deal analyzed
  • What you'd build: type in the purchase price, down payment, rent, and expenses → instantly see cash flow, cap rate, cash-on-cash return, and other key numbers → save and compare several deals side by side → export a PDF to show a lender or business partner
  • How to find customers: r/realestateinvesting, r/financialindependence, the BiggerPockets community, YouTube channels about real estate investing
  • Competition: the BiggerPockets Calculator ($39/year Pro) is the main option, but it's clunky; DealMachine is expensive
  • Verdict: a real, narrow niche. The pain is real and the customer is clear, but the total market is limited — roughly 2 million active real estate investors in the US

COULD WORK — A Lease Rules and Deadline Tracker

  • Why: small landlords miss renewal notice deadlines, security deposit deadlines, and required habitability checks — and every mistake risks a real penalty
  • Who would pay: landlords who manage their own 1–20 units, at $19/month
  • What you'd build: enter your lease end dates and which state your properties are in → get the required notice deadlines calculated automatically → see a calendar of everything coming up → get a compliance checklist specific to your state, for each property
  • How to find customers: r/Landlord, r/realestate, the BiggerPockets Landlord forum, newsletters from state landlord associations
  • Competition: no dedicated tool exists — people use Google Calendar and their own research instead
  • Verdict: real pain, little competition, but a small total market. There are roughly 20 million landlords in the US, but your actual target is the smaller group who manage their own properties

PROBABLY NOT WORTH IT — A Per-Booking Expense Tracker for Short-Term Rentals

  • Why: Airbnb and VRBO hosts don't know their true profit per booking once cleaning, restocking, and maintenance are factored in
  • Who would pay: active hosts managing 1–5 properties, at $19/month
  • What you'd build: pull in payouts from the Airbnb API → let hosts add expense categories (cleaning, supplies, maintenance, utilities) per booking → calculate the real profit margin per booking → produce a monthly and yearly profit report
  • Verdict: nice-to-have, not a must-have. The pain is real, but Stessa already covers most of this well, and Airbnb's own reporting tools keep getting better on their own

The Bottom Line

PropTech is tough for a solo founder — most specific niches already have a well-funded competitor. The strongest remaining path is deal analysis for everyday investors: it's a real, recurring need (they check dozens of deals), and the existing tools are clunky or paywalled. The lease compliance tracker is also a genuinely underserved need — landlords are genuinely afraid of missing a deadline — but the market is broad and hard to reach, since most landlords don't think of themselves as "software buyers." Both are real, sustainable businesses, just not the kind that turns into a huge company.

Where These Numbers Come From