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Summitly vs HouseSigma

Published Updated ·Facts checked

Summitly vs HouseSigma: a HouseSigma Alternative for Ontario

By Summitly Editorial for Coldwell Banker Summit Realty, Brokerage

The short answer

HouseSigma and Summitly both show Ontario listings and, after a free sign-in, sold prices. HouseSigma is an established data app with a long sold history and its own AI chat. Summitly adds Zara, an AI virtual agent you can call, an instant estimate for any Ontario address, and a Coldwell Banker brokerage whose licensed agents can represent you.

Summitly

HouseSigma

Brokerage behind it
Coldwell Banker Summit RealtyHouseSigma Inc. Brokerage
Sold prices
Yes, free after sign-inYes, after sign-in
AI assistant
Zara (chat and voice)SigmaAI chat
Home estimate
Instant estimate with comparablesSigma Estimate
“None found” means we did not find the feature when we checked. Sources below.

Summitly vs HouseSigma: features side by side

About HouseSigma: HouseSigma is run by HouseSigma Inc. Brokerage, based in Markham, Ontario. It was founded in 2018 and describes itself as a technology platform, listings portal and brokerage.[1][2]

FeatureSummitlyHouseSigma
Brokerage behind itColdwell Banker Summit Realty, Brokerage, a RECO-registered, independently owned and operated Coldwell Banker franchise in Vaughan (see)HouseSigma Inc. Brokerage (Markham, Ontario)[2][1]
Where it coversOntario listings from the TRREB MLS® System, with most activity in the GTA (see)Ontario, British Columbia and Alberta (Alberta since 2023)[1][3]
Sold pricesYes, free: sold prices and history for the last two years after you sign in (TRREB VOW rules) (see)Yes, after sign-in; it cites board VOW rules and restricts sold data to bona fide consumers. Sold history back to 2003 for the GTA[4][5][6]
Home value estimateInstant estimate for any Ontario address, with a confidence range and the comparable sales used (see)Sigma Estimate on listings, plus a home value estimator page[7][6]
AI assistantZara: chat or voice; searches listings, estimates values, answers questions and books viewings (see)SigmaAI chat in the app (per its App Store release notes)[6]
Map searchYes, map search across Ontario listings (see)Yes, including sold-home maps[8]
Saved searches & alertsSave searches and watch homes; homeowners can get email alerts when their home's estimated value moves (see)Alerts for new listings, price changes and sales[6]
Access to agentsLicensed Coldwell Banker Summit Realty agents, free to talk to with no obligation (see)HouseSigma's own agents. A March 2026 post states a 1.5% listing fee, reduced to 1% if you also buy through HouseSigma (conditions apply)[6][9]

Where is HouseSigma strong?

  • A long sold history (back to 2003 for the GTA) and market-trend pages by city and community.[6]
  • A large, established user base: it reports over 2 million registered users.[1]
  • Coverage beyond Ontario, in British Columbia and Alberta.[1][3]
  • A published listing fee, so sellers can see its price before they call.[9]

What does Summitly do differently?

  • Zara, an AI virtual agent you can chat with or call, which searches listings, estimates values and books viewings.
  • An instant home estimate for any Ontario address, with a confidence range and the comparable sales used.
  • Commute-first local pages: 219 transit-station pages and 271 intersection pages across the GTA, plus neighbourhood, street and condo-building pages.
  • Ontario sold prices, free after sign-in, and 9 calculators for mortgage, affordability, down payment, property tax and rent vs buy.
  • A licensed brokerage behind it: Coldwell Banker Summit Realty, Brokerage, an independently owned and operated Coldwell Banker franchise.

Who should use HouseSigma, and who should use Summitly?

Use HouseSigma if…

  • You want sold history going back many years for GTA homes
  • You also search in British Columbia or Alberta
  • You want a published, fixed listing fee

Use Summitly if…

  • You want to call or chat with an AI assistant that can also book viewings
  • You want an instant estimate for your own Ontario address with the comparables shown
  • You want to browse homes near a specific transit station or intersection
  • You want a Coldwell Banker brokerage and a named local agent when you're ready

Want a second opinion from a local agent?

Tell us what you're planning and a licensed Coldwell Banker Summit Realty agent will reach out. Free, no obligation.

By submitting, you agree to be contacted by Coldwell Banker Summit Realty, Brokerage. Each office is independently owned and operated.

Summitly vs HouseSigma: questions answered

Is Summitly a good HouseSigma alternative?

For Ontario, yes if you want listings, free sold prices after sign-in, an AI virtual agent and a licensed agent in one place. HouseSigma has a longer sold history and covers BC and Alberta too, so many people use both.

Do HouseSigma and Summitly both show sold prices?

Yes. Both require a free sign-in, because TRREB's Virtual Office Website (VOW) rules only allow sold data to be shown to registered consumers. Summitly shows the most recent two years.

Does HouseSigma have an AI assistant?

Yes. Its App Store release notes describe SigmaAI, a chat you can ask about real estate. Summitly's assistant, Zara, works by chat or voice and can also estimate values and book viewings.

Is HouseSigma a brokerage?

Yes. HouseSigma Inc. Brokerage is registered in Ontario and offers its own agents. Summitly is operated by Coldwell Banker Summit Realty, Brokerage, a RECO-registered brokerage.

Sources

Competitor facts checked on . Features change; check each site for its current terms.

  1. 1.About us — HouseSigma
  2. 2.HouseSigma Inc. Brokerage — REALTOR.ca office listing
  3. 3.HouseSigma announces expansion and launches in Alberta — REM
  4. 4.Why does it require sign-up to view some properties? — HouseSigma FAQ
  5. 5.VOW restrictions for non-bona fide consumers — HouseSigma FAQ
  6. 6.HouseSigma Canada Real Estate — App Store
  7. 7.Home value estimate — HouseSigma
  8. 8.Markham sold homes map — HouseSigma
  9. 9.Five great reasons to sell your home with HouseSigma — HouseSigma blog (March 2026)

This comparison reflects Summitly's offering and publicly available, general information; brokerage and platform features, commission structures and terms vary by office and change over time — verify current details with each company directly. Summitly is not affiliated with, endorsed by, or sponsoring the other companies named. All trademarks and brand names are the property of their respective owners. Summitly is operated by Coldwell Banker Summit Realty, Brokerage, registered with the Real Estate Council of Ontario (RECO). Found an error? Tell us through our contact form and we will correct it.