Quick answer: Zillow has the largest inventory and the most listing photos, but paid agents, not necessarily the listing agent, often answer your inquiry. Redfin and Realtor.com pull the most current MLS data. Compass and Zenlist work best once you're paired with an agent. Homes.com has built its whole pitch around not reselling your inquiry to other agents. The right app depends on whether you want the biggest search pool, the most accurate data, or the most direct line to the person who actually knows the home.
Every home search app pulls from roughly the same pool of listings. What actually separates them is what happens after you hit "contact agent," who gets your information, and how each company makes its money. We work inside these platforms every day, so here's what we've found, with sources, so you can pick the ones worth your time.
Zillow
Zillow is the most visited real estate app in the country, and for browsing alone, it's hard to beat: deep filters, 3D tours, and a huge photo library on nearly every listing.
Pros
- The largest search pool and traffic of any home search app, with frequent updates and strong filtering (schools, commute time, price history, 3D tours)
- Zestimate gives a fast, free ballpark value for almost any address
- Well-built, frequently updated mobile apps for iOS and Android
Cons
- When you tap "contact agent" or "request a tour," Zillow often routes you to a Premier Agent or Flex agent who paid for access to that ZIP code, not the agent who actually listed the home. A University of Pennsylvania study found that only 0.3% of users understood this before using the feature
- Flex agents reportedly pay Zillow up to 40% of their commission on a closed sale, a cost that isn't disclosed to the buyer or seller, according to active litigation against the company
- Zestimates carry a median error of 1.9% for homes actively listed, but that climbs to 7.5% or higher for off-market homes, which can mean a swing of tens of thousands of dollars on a typical home
What about Trulia?
Trulia has been owned by Zillow Group since 2015 and draws from the same listing feed and the same paid-agent lead system as Zillow. Its real value is the neighborhood layer: crime data, school boundaries, commute times, and local color that Zillow doesn't surface as clearly. It's a genuinely useful second stop for researching an area, especially for buyers relocating from out of town, but expect the same "contact agent" mechanics underneath.
Redfin
Redfin operates its own brokerage, so its app pulls directly from MLS feeds and tends to reflect new listings and price changes faster than aggregator sites.
Pros
- Listing data comes straight from the MLS and typically updates faster than third-party aggregators
- Redfin's own agents are salaried rather than 100% commission, which the company markets as less pressure to rush a transaction
- Book a showing directly in the app, often without waiting on a callback
- Now backed by Rocket Companies, which completed its acquisition of Redfin in July 2025 and rebranded it "Redfin Powered by Rocket," pairing it with rate-reduction offers for buyers who also finance through Rocket Mortgage
Cons
- Agent coverage thins out in smaller and rural markets, where a request can route to a partner agent instead of a Redfin employee
- Now tied to Rocket Mortgage, so it's worth comparing that bundled financing offer against shopping your mortgage independently
- The Redfin Estimate, like Zillow's Zestimate, is an algorithm, not an appraisal, and still carries a margin of error
Realtor.com
Realtor.com is operated by Move, Inc. under license from the National Association of REALTORS, with a direct data relationship to MLS feeds nationwide.
Pros
- Direct MLS relationships generally make it one of the more accurate and current listing sources available
- Clear "for sale by agent" labeling and a dedicated agent-finder tool
- Acquired Zenlist in July 2025, adding real-time, collaborative search tools to its platform (more on Zenlist below)
- Rolling out AI-assisted search that lets buyers describe what they want in plain language instead of filling out filter forms
Cons
- Also runs a lead-referral program, ReadyConnect Concierge (formerly Opcity), that routes buyer inquiries to network agents in exchange for a referral fee the agent pays at closing, so the "free" connection has a cost built in behind the scenes
- The mobile app can feel busier than Redfin's or Zillow's, with more ad placements mixed into search results
Compass
Compass is one of the largest brokerages in the country, and its app doubles as a search tool and a client-agent collaboration platform, with a clean, design-forward interface.
Pros
- Strong presence in major metro markets with an agent-connected search and collaboration experience
- Rolled out a company-wide AI Assistant across its Home Platform in 2026 to speed up search and agent-buyer communication
- Increasingly surfaces its "Private Exclusives" and "Coming Soon" inventory (homes marketed before or without hitting the open MLS) through outside partnerships, most recently a 2026 deal putting Compass exclusives on Redfin
Cons
- That off-MLS marketing strategy means some Compass listings won't show up everywhere. Zillow banned publicly marketed, non-MLS listings in April 2025, and Compass sued over the policy, so a buyer relying on Zillow alone may not see the full Compass inventory in a given market
- Coverage is concentrated in major metros; smaller markets may have thin or no Compass presence
- Works best once you're connected to a Compass agent, rather than as a tool for anonymous browsing
Homes.com
Homes.com is owned by CoStar Group, which has poured significant ad spend into the platform since 2023, including national television campaigns, to grow both traffic and listing accuracy.
Pros
- Built its entire positioning around "your listing, your lead," meaning the agent who lists a home keeps the leads it generates instead of having them sold to competing agents, a direct contrast to Zillow's Premier Agent model
- Backed by heavy, sustained investment aimed at closing the data and traffic gap with Zillow and Realtor.com
- Added AI-powered natural-language search in 2025 and expanded it into a full "Homes AI" experience in 2026
Cons
- Historically smaller listing inventory and site traffic than Zillow or Realtor.com, though the gap has been narrowing
- Some agents have raised concerns about how their names and headshots appear in Homes.com's marketing, worth a quick look if you're checking out an agent's Homes.com profile
Zenlist
Zenlist is different from the rest of this list: it's an agent-invitation app built for collaborative search rather than open browsing, and Realtor.com acquired it in July 2025.
Pros
- Real-time, MLS-synced updates that are often faster than public portals, since it pulls directly from the local MLS feed
- Built for collaboration: you and your agent share one running feed of saved homes, notes, and reactions instead of scattering them across texts and emails
- Minimal ad clutter, since it isn't built around selling agent leads
- Now backed by Realtor.com's platform following the 2025 acquisition
Cons
- Invitation-only. You need an agent to set up your account, so it's not a tool for browsing before you're ready to work with someone
- Smaller footprint than the major portals, available through specific MLSs and partnering brokerages rather than nationwide
- Fewer research tools like school ratings or neighborhood overlays, since it's built for active search rather than exploration
A few more worth knowing about
- Movoto aggregates MLS listings and, in participating states, offers commission rebates to buyers.
- HomeLight is less a listing search tool and more an agent-matching and cash-offer marketplace, useful if you want a short list of vetted local agents rather than raw listings.
- Opendoor is an iBuyer platform. It's the place to look if you're comparing a traditional sale against an instant cash offer on your current home.
- Apartments.com and PadMapper are built for renters, with strong filtering for pet policies, in-unit laundry, and move-in specials.
- Xome focuses on foreclosure and auction properties, with a database that refreshes roughly every 15 minutes.
- Brokerage-branded apps like Coldwell Banker, Keller Williams, and RE/MAX typically pull from the same regional MLS feed as everyone else, so features tend to mirror Zillow or Realtor.com, differentiated mainly by that brokerage's own agent network.
Common questions
Does Zillow sell my information to other agents?
Zillow doesn't sell your data as a product, but its Premier Agent and Flex programs route buyer inquiries to agents who paid for access to that ZIP code, not necessarily the agent who listed the home you inquired about. A 2026 University of Pennsylvania study and pending litigation both allege that most users don't realize this when they click "contact agent."
What's the difference between Zillow and Trulia?
Trulia has been owned by Zillow Group since 2015 and shares the same listing feed and lead system. The main difference is focus: Trulia leans into neighborhood-level data like crime maps, school boundaries, and commute times, while Zillow leans into listing volume and search filters.
Is Redfin still independent, or does Rocket own it now?
Rocket Companies completed its acquisition of Redfin in July 2025. The app still operates under the Redfin name, now with the "Redfin Powered by Rocket" branding and bundled Rocket Mortgage offers for buyers who use both.
Can I see Compass's exclusive listings on Zillow?
Not always. Zillow's April 2025 policy blocks publicly marketed listings that haven't been submitted to the MLS, which affects some of Compass's "Private Exclusives" and "Coming Soon" inventory. As of 2026, a growing share of that inventory is showing up on Redfin instead, through a new partnership between Compass and Redfin's parent company, Rocket.
Which real estate app has the most accurate listing data?
Apps with a direct MLS relationship, Redfin and Realtor.com in particular, tend to reflect new listings and price changes fastest, since both source data directly from local MLS feeds rather than through slower third-party syndication.
Is Zillow's Zestimate accurate enough to price a home?
Treat it as a starting point, not a valuation. Zillow's own data shows a median error of 1.9% for homes currently listed, but that error climbs to 7.5% or higher once a home is off-market, which on a typical home can mean a gap of tens of thousands of dollars from what it would actually sell for.
The bottom line
No single app gives you the full picture, and that's by design. Zillow and Trulia are built to maximize the number of agents competing for your inquiry. Redfin and Realtor.com lean on direct MLS access for speed and accuracy, with their own lead-referral models running underneath. Compass and Zenlist are strongest once you're already working with an agent who can get you into their private search tools. Homes.com is the newest serious challenger, built specifically around not reselling your inquiry to the highest bidder.
If you're searching in Chicago, we're happy to be the person on the other end of that "contact agent" click, someone who actually knows the block, the building, and the market, rather than whoever paid for your ZIP code that month. Reach out to the Camille Canales Group any time you want a second set of eyes on a listing or a neighborhood.
