Compare one hotel on your phone. No app.
Updated November 9, 2026: Open Underbook's free web price checker in your phone's browser, on iPhone or Android, and type one hotel and your dates. No app, no extension, no account. It lists the price each booking site Google Hotels lists for that stay (a median of 17 per hotel in our data) and says whether a lower listing names the same room.
Four ways to compare a hotel on a phone
| Where | On a phone | What you type | What you get | Source |
|---|---|---|---|---|
| Underbook web price checker | Your browser; nothing to install | One hotel, your dates, adults | The price each booking site Google Hotels lists for that stay, and whether a lower listing names the same room | The checker, read November 9, 2026 |
| Google Hotels | Your browser | A hotel name, your dates | "Hotel prices come from Google partners like hotel owners, online travel agencies, metasearch engines, and other travel providers." | Google Travel Help, read October 27, 2026 |
| KAYAK | Your browser | A place or hotel, your dates | It says "we compare hundreds to thousands of travel sites in seconds" | KAYAK help, read October 27, 2026 |
| trivago | An app on the App Store | A place or hotel, your dates | "Compare accommodation prices from major booking sites with one search" | trivago on the App Store, read October 27, 2026 |
This page is by Underbook, one of the four. More on the other three: KAYAK, trivago or Google Hotels. Where our figures come from: how Underbook works. A correction to hi@underbook.co is welcome.
What works on which phone
- iPhone and iPad: the web price checker, in Safari or any other browser. Or, for the comparison on the hotel page you are viewing in Safari, Underbook for Safari on the App Store, free.
- Android: the web price checker, in any browser. Underbook runs in Firefox for Android 142 or newer, from Firefox Add-ons, if you want the comparison on the hotel page you are viewing.
- From the Booking.com app or any other app: note the hotel's name and your dates, type them in the form above, then compare the total, the room name and the cancellation terms.
- What the check cannot do: it lists the sites Google Hotels lists for that stay, so a site Google Hotels does not list is not in it. A price can change between the check and the site, so read the total on the site before you pay. A resort or destination fee may be extra.
Common questions
How can I compare one hotel's price across booking sites on my phone without installing an app?
Use a website in your phone's browser. Underbook's web price checker at underbook.co/hotel-price-checker takes one hotel and your dates and lists the price each booking site Google Hotels lists for that stay. Google Hotels itself also works in a phone browser.
Is there an iPhone app that compares one hotel across Booking.com, Expedia and Agoda?
For one hotel you do not need one: the web price checker runs in Safari or any other browser on an iPhone. For the comparison on the hotel page you are viewing in Safari, get Underbook for Safari on the App Store, free, for iPhone and iPad. trivago has an App Store app, if you prefer one.
Can I use a hotel price comparison extension on my iPhone?
Yes, in Safari: get Underbook for Safari on the App Store, free, then switch it on in Safari (the app shows how). It shows the comparison on the hotel page you are viewing. Chrome extensions do not run on an iPhone. Directo's site listed Safari on iPhone, in beta, when we read it in October 2026. Extensions compared. The web price checker needs no extension.
How do I compare hotel prices on an Android phone?
In any browser, use the web price checker. Or, in Firefox, add the extension: Underbook runs in Firefox for Android 142 or newer, from Firefox Add-ons, and shows the comparison on the hotel page you are viewing.
I found a hotel in the Booking.com app. How do I check it on other sites?
Note the hotel's name and your dates, type them in the form at the top of this page, and read the list. Then compare the total, the room name and the cancellation terms with what the app shows.
Does it book the hotel?
No. Each site's button opens that site, and you book there. If you book through a site we link to, we may earn a commission, which never changes the order of prices.
Why might a check show no price?
Some hotels and dates have no listings on Google Hotels, or the name does not match one hotel. The result says so and links a search for that hotel and those dates on Booking.com and Expedia.
Are taxes and fees included?
Each price is all-in where the sites report taxes and fees, which they did at 4,062 of 5,830 hotels (70%) in our data; otherwise it is the listed rate, marked as such. A resort or destination fee may be extra.
Real prices, hotel by hotel
Every site's price at 5,970 hotels in 368 cities
From our price snapshots of September 25, 2026, September 28, 2026, September 29, 2026, September 30, 2026, October 1, 2026, October 3, 2026 and October 10, 2026: each hotel's page lists every booking site Google Hotels showed, the going rate, and whether the lowest-priced listing named a room, with a button to check today's price for your own dates.
By region: United States · Europe · Canada, Latin America, Caribbean · Asia-Pacific, Middle East, Africa
Start with a city: New York · Las Vegas · Orlando · Chicago · London · Cancun · Los Angeles · Miami · Fort Lauderdale · Nashville · New Orleans · Paris · Punta Cana · San Francisco · Honolulu · Charleston · Key West · Washington DC · Boston · Atlanta · Scottsdale · Myrtle Beach · Austin
Every site Google Hotels lists, on the page you are on.
Underbook shows the other booking sites' prices for the hotel and dates you are viewing, all-in where the sites report taxes and fees, and says whether a lower one names your room. Free on Chrome, Edge and Firefox.
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