Frequently Asked Questions

Last updated: June 2025

How can I start using the Chrome Extension?

You just need to install the chrome extension, then browse on Domain and RealEstate.com - just as you would normally! As you browse listings, Homer shows the information you need to see.

How can I start using the App?

Our Web App is Launching Soon - keep an eye out or register your interest for updates

What is a ‘Guide Price’? And why is it sometimes shown as a range and other times as a single number?

A guide price is the price that the selling agent provides to indicate the expected selling range for a property. It's intended to guide buyers on what offer might be competitive. While not always shown in the listing, marketplaces like realestate.com.au and Domain require a price to enable filtering and search functions—so one is usually entered, even if it’s not prominently displayed.

Homer uses three sources to determine a property's guide price:
1. Visible Price Fields – These are clearly displayed on the listing in fields like "Price" or "Guide Price".

2. Title Extraction – Sometimes the guide is embedded in the listing title (e.g., "Auction this Saturday – Guide $1.2m"), and we extract it from there.

3. Hidden Backend Data – We access price data that is not visible to buyers but entered by the agent for backend filtering or campaign purposes. This is often the most accurate and up-to-date price guide.

Homer prioritizes showing the most recent and reliable guide. If the backend guide price is the latest and fits within the visible price range, we’ll display that single value. However, if the backend price falls outside the stated range, we’ll instead show the price range to better reflect the listing’s broader guidance.

Does it work on other major real estate websites?

At the moment, the chrome extension works on domain.com.au and realestate.com.au.

Are you planning to support Firefox and other browsers?

As the market continues to grow we aim to cover a wider range of browsers Firefox is included in that scope.

Where is the data coming from?

Homer does a daily analysis of data across key marketplaces and a robust verification process.

What does the Fish Emoji mean?

As Homer reviews the full history of a property, any details that appear unusual or raise red flags are flagged with an icon. Letting you know that something in the property's past may not add up. This could be a discrepancy from either us or them - In this case 'something seems fishy.'

How far back does listing history go?

We are always growing our database with verified insights. But Homer began tracking property information as KoalaData in April 2020.

I have attended an auction over the weekend and it was passed in. Why is this not reflected on Homer yet?

If the property is still available on the market 48 hours after the scheduled auction time (this is the window given to the agents to update the listing), it is automatically flagged by our system as "passed in".

But if you see anything 'fishy' on a listing, we'd love you to let us know!

How is the market median calculated? Why is it sometimes not available?

Every week, Homer analyzes the rentals available in the last 30 days in each suburb and postcode for different property types (number of bedrooms and apartment vs house/townhouse). Unlike most websites, Homer does not aggregate per postcode to better surface price differences in suburbs that share the same postcode.

The downside is that cities outside metropolitan areas may lack the necessary number of data points to build confidence in the median rent. When that happens, the median rent information is hidden.

How is the gross rental yield calculated?

Homer matches the property you're browsing against its database of median rents to calculate the gross yield with the following formula: number of weeks in a year * median rent / property price.

How is the search price range calculated?

It crowdsources and cross-checks search price ranges from people using the app. For instance:

Bob searches for house between 600k and 750k in Perth and sees house A, B, C
Alice searches for house between 700k and 750k in Perth and sees house B
Then Homer would display that house B's price is in the 700-750k range.
The more users and the more searches, the more accurate the range is.

When you browse listings with a search price range, it takes a few seconds/minutes to update it so don't be surpised if your price range is not immediately reflected on the listing page.

Why am I seeing so many listings with 'Contact Agent' or 'Price on Application'?

Provision of a Statement of Information is only mandatory in Victoria, and real estate agents usually don't bother providing them in other states.
If a SOI is provided, Homer uses its Optical Character Recognition technology to extract the price from the document.

Because SOIs are often formatted differently, errors occasionally happen. You can report errors through thecomment feature on the listing itself.