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Real Estate · head to head

CoStar vs DoorLoop

CoStar logo

CoStar

Real Estate

Commercial real estate data subscription with strict per-seat licensing, sold on multi-year contracts and enforced through active anti-piracy litigation against password sharing

From
On request
Rated
-
Full reviewWebsite
DoorLoop logo

DoorLoop

Real Estate

Cloud property management with double entry accounting, priced per unit above a monthly minimum

From
On request
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: CoStar per-seat licensing with no published rate makes budgeting for headcount growth unpredictable, since adding users typically requires a new negotiation rather than a self-service upgrade.; DoorLoop pricing is per unit against a monthly minimum, so a 20 unit portfolio pays the same as one two or three times the size and the real cost per unit lands far above the advertised figure.
  • They diverge on capability: CoStar covers Property and ownership records, DoorLoop covers Double entry accounting.
  • Prices and features above were last checked on 1 September 2026.

Where they differ

Only the attributes on which CoStar and DoorLoop actually diverge.

Attributes where CoStar and DoorLoop differ
AttributeCoStarDoorLoop
Pricing modelquotePer unit per month with a monthly minimum
PlatformsWebWeb, iOS, Android

Identical on both: starting price (On request), free tier (No), user rating (Not yet rated), category (Real Estate).

What each one covers

Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.

Only in CoStar

  • Property and ownership records
  • Lease and sales comparables
  • Tenant and space data
  • Market analytics
  • STR hospitality data
  • CoStar Real Estate Manager

Only in DoorLoop

  • Double entry accounting
  • Tenant and owner portals
  • Rent collection
  • Listing syndication
  • Maintenance and work orders
  • Tenant screening
  • E-signature
  • Reporting

What people use each for

The jobs each tool is most often brought in to do.

CoStar

  • A commercial brokerage needing lease and sales comparables to support underwriting and pitch materialsnot DoorLoop
  • An institutional investor or lender wanting standardised market analytics across submarkets for portfolio decisionsnot DoorLoop
  • A corporate real estate team needing lease administration through CoStar Real Estate Managernot DoorLoop
  • An appraiser needing sourced, defensible comparable transaction data for valuation reportsnot DoorLoop

DoorLoop

  • A third-party manager with 100 to 500 residential units moving off spreadsheets and a desktop accounting packagenot CoStar
  • A landlord who self-manages several small multifamily buildings and wants owners, tenants and the ledger in one placenot CoStar
  • A manager who needs trust accounting that survives a state audit without maintaining a separate bookkeeping systemnot CoStar
  • An operator consolidating rent collection onto one rail so that arrears reporting is accurate on the day rather than a week laternot CoStar

Where each one falls short

Documented limitations, not opinions. Every one is a constraint you would hit in normal use.

CoStar

  • Per-seat licensing with no published rate makes budgeting for headcount growth unpredictable, since adding users typically requires a new negotiation rather than a self-service upgrade.
  • CoStar actively pursues legal action against password sharing and unauthorised access, which is a genuine compliance and litigation risk for a firm that is loose about login discipline, intentionally or not.
  • A June 2026 antitrust lawsuit names CoStar alongside major brokerages over an alleged price-fixing scheme, a live legal matter that could affect the company standing or practices during a long-term contract.
  • Multi-year contract structures reduce a buyer flexibility to switch providers even if a cheaper or better data source emerges during the term.
  • The breadth of the platform (property, hospitality via STR, lease admin) means a firm often pays for modules it does not use just to access the specific data set it needs.

DoorLoop

  • Pricing is per unit against a monthly minimum, so a 20 unit portfolio pays the same as one two or three times the size and the real cost per unit lands far above the advertised figure.
  • Payment processing margin is part of how the vendor earns, so the subscription understates total cost: card fees are usually passed to residents, ACH terms differ by plan, and the spread is not negotiable at small volumes.
  • First term pricing is discounted aggressively, which means the renewal quote is materially higher than the number that won the deal, and the deeper discounts are attached to multi-year commitments.
  • Commercial lease administration is shallow: CAM reconciliation, percentage rent and complex escalation schedules are not handled at the level a mixed commercial and residential portfolio requires.
  • The vendor is younger than Buildium, AppFolio or Yardi, so the third-party integration catalogue and the pool of consultants who can migrate legacy data are both much smaller.

Pricing, plan by plan

CoStar

On request
  • CoStar$undefined/year
    • Per named user licensing, no published rate
    • Multi-year contracts standard
    • Terms explicitly prohibit password or login sharing

DoorLoop

On request
  • Starter$undefined/month
    • Charged per unit against a monthly minimum
    • Accounting, rent collection and tenant portal
    • Standard reporting
  • Pro$undefined/month
    • Charged per unit against a higher monthly minimum
    • Owner portal and owner statements
    • QuickBooks sync
  • Premium$undefined/month
    • Charged per unit against the highest monthly minimum
    • Dedicated onboarding and priority support
    • API access

Which should you pick?

Choose CoStar if

  • You need property and ownership records.
  • You also want lease and sales comparables.
CoStar review

Choose DoorLoop if

  • You need double entry accounting.
  • You work on Web, iOS, Android.
  • You also want tenant and owner portals.
DoorLoop review

Questions people ask

Is CoStar or DoorLoop better?
Neither clearly leads. CoStar starts at On request and DoorLoop at On request, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, CoStar or DoorLoop?
CoStar starts at On request and DoorLoop at On request.
Does CoStar or DoorLoop run on more platforms?
CoStar runs on Web. DoorLoop runs on Web, iOS, Android.
What is CoStar best used for?
CoStar is most often used for a commercial brokerage needing lease and sales comparables to support underwriting and pitch materials, an institutional investor or lender wanting standardised market analytics across submarkets for portfolio decisions, a corporate real estate team needing lease administration through costar real estate manager, an appraiser needing sourced, defensible comparable transaction data for valuation reports. Of those, a commercial brokerage needing lease and sales comparables to support underwriting and pitch materials and an institutional investor or lender wanting standardised market analytics across submarkets for portfolio decisions are not what DoorLoop is typically brought in for.
What can CoStar do that DoorLoop cannot?
CoStar covers Property and ownership records, Lease and sales comparables, Tenant and space data, Market analytics. DoorLoop covers Double entry accounting, Tenant and owner portals, Rent collection, Listing syndication.

Answered from the vendors’ own pages

CoStar: Can multiple people share one CoStar login to save cost?

No. Terms explicitly prohibit this, and CoStar has an active pattern of suing individuals and firms for unauthorised access under shared credentials.

DoorLoop: What does it actually cost for a 20 unit portfolio?

You pay the monthly minimum, not 20 times the per unit rate, so the effective cost per unit is several times the headline. Ask for the minimum in writing before you discuss the per unit figure.

CoStar: Is CoStar pricing published anywhere?

No. It is quote-only, licensed per named user, on multi-year contracts.

DoorLoop: Does DoorLoop handle trust accounting?

Yes. The ledger is double entry with separate trust and operating accounts, owner draws and statements, which is what state licensing audits look for.

CoStar: Is there a current legal risk in signing with CoStar?

A June 2026 antitrust lawsuit names CoStar and several major brokerages over an alleged price-fixing conspiracy; buyers with long-term contracts should track that litigation.

DoorLoop: Who pays the card fee on rent?

Normally the resident. ACH pricing varies by plan and by negotiated volume, and processing is where a meaningful share of the vendor revenue comes from.

DoorLoop: Is it suitable for commercial property?

For simple commercial leases yes. For CAM reconciliation, percentage rent or institutional reporting you want Yardi or MRI instead.

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