How much does it cost?

Every price is quoted, because it follows how many hotels you have and how far ahead you sell. Ask through the form and we come back with one. The first check is free: we read the next 30 nights and send you what we find.

Which channels do you check?

Booking.com, Expedia, and every seller Google Hotels lists beside your hotel, whoever that is on the day. When a check finds Booking.com or Expedia undercutting you and we have your listing there, we confirm it on that channel's own page, and the queue shows which undercuts are confirmed.

How often do you check?

Every night of the coming week daily, the rest of the month every fourth day, and further out every twentieth day, as far ahead as your plan watches. A stay with a live undercut is re-read at least every four days, so a fix is noticed, and you can re-check any stay yourself from the queue.

What does like for like mean?

The same room, on the same board, cancellation terms and tax basis, for the same number of guests. A comparison that cannot be matched that closely still shows, labelled Cheapest rooms rather than Same room. We check one-night stays at up to 3 guest counts per hotel.

Do I need to connect my booking engine?

No. If your site runs on BON, we read your direct price the way a guest sees it. On any other engine, we use the price Google Hotels shows for your official site. There is nothing to install and no access to your systems.

What do you need from me to start?

Your hotel's name and location, the currency you sell in, the guest counts you care about (up to 3), and your booking engine or Google listing. Your Booking.com and Expedia listing links let us confirm what we find. Our team sets up the hotel, your alert rule and your team's access.

Who gets the alerts, and when?

Everyone you invite. Undercuts show in the app as they are found, each person picks instant, daily or weekly email or none, and a signed webhook can send them to your own systems. Your alert rule sets the smallest gap worth hearing about, in money and in percent, and which channels count.

What happens when I fix a price?

Mark the undercut as fixed and it leaves the queue while we re-check the stay. If the undercut is still there, it opens again as a new one. Undercuts also close on their own once two scheduled checks in a row find the price back at parity.

Can I run several hotels?

Yes. One account holds every hotel, each with its own queue, and your team as admins or members.

What data do you keep?

Public prices, the ones any traveller sees. We never see your bookings or your guests. Individual checks are kept for 90 days, and the nightly price history for 400.

Free check · like for like, the next 30 nights

Know when an OTA sells your room for less.

StayParity checks Booking.com, Expedia and every seller on Google Hotels against your own site, room for room, and tells you as soon as a check finds one of them undercutting you.

No card, no install. We check the next 30 nights and send you what we find.

Hotel Aurora · Nafplio

Fri 16 Oct · 1 night

Deluxe Double · Flex · B&B · 2 guests

Live

ChannelPrice for the stay

Your siteDirect · hotelaurora.gr
€189
Booking.comUndercut €10 · 5.3%
Expedia€5 above you
€194
Google · Official siteMatch
€189

Illustrative · Hotel Aurora is a fictional hotel

Channels

Booking.com, Expedia, and every seller in Google Hotels. Whoever quotes a price for your room, we read it and put it next to yours.

Booking.com

An undercut is confirmed on Booking.com's own page

Expedia

An undercut is confirmed on Expedia's own page

Google Hotels

Every seller it lists beside you

Trip.com
Hotels.com
Agoda
Priceline
eDreams
Vio.com
Super.com
ZenHotels
Stayforlong

Sellers on Google Hotels vary by hotel and market. We read whichever are there on the day.

How it works

One queue of every night you are undercut. Checked daily for the week ahead, matched like for like, and closed only when the price is right again.

1
Watch every night you sell
Your direct price and every channel, for each guest count you sell. The coming week daily, further out less often, so the checks go where prices move.
Nights 0–6
Daily
Nights 7–30
Every 4 days
Nights 31–90
Every 20 days
A live undercut is re-read at least every 4 days.
Disparities
Hotel Aurora · next 90 nights
Booking.comSat 24 Oct · 2 guests
−€9€188 →
ExpediaFri 30 Oct · 2 guests
−€7€164 →
Google · Trip.comSun 1 Nov · 3 guests
−€4€212 →
2
Compare like for like
Booking.com's cheapest €142 is non-refundable, room only. Your €188 is flexible with breakfast, so that comparison says nothing. We match room, board, cancellation and guests first: like for like, it is €179 against your €188.
Disparities
Hotel Aurora · next 90 nights
Booking.comSat 24 Oct · 2 guests
−€9€188 →
Booking.com's cheapest€142Non-refundable · Room only
Booking.com, same room as yours€179Flexible · B&B
Like for like: flexible, with breakfast€179 vs your €188
ExpediaFri 30 Oct · 2 guests
−€7€164 →
Google · Trip.comSun 1 Nov · 3 guests
−€4€212 →
3
Hear about it first
The undercut opens in your queue. When it clears your alert rule it goes out in the app, to your webhook, and by email: instantly, or in a daily or weekly digest, as each person on your team prefers.
Disparities
Hotel Aurora · next 90 nights
Booking.comSat 24 Oct · 2 guests
−€9€188 →
ExpediaFri 30 Oct · 2 guests
−€7€164 →
Google · Trip.comSun 1 Nov · 3 guests
−€4€212 →
Undercut on Booking.com
Booking.com is €9 under you for Sat 24 Oct, 2 guests.
In the appWebhookEmail
4
Fix it, then forget it
Change the rate on the channel and press Re-check now: a clean result closes it as Fixed. Left to the schedule it takes two clean checks in a row, so a price that flickers back does not slip past you.
Disparities
Hotel Aurora · next 90 nights
Booking.comSat 24 Oct · 2 guests
−€9€188 →
Re-checking…
ExpediaFri 30 Oct · 2 guests
−€7€164 →
Google · Trip.comSun 1 Nov · 3 guests
−€4€212 →

Disparities

Hotel Aurora · next 90 nights

Booking.comSat 24 Oct · 2 guests

−€9€188 →

ExpediaFri 30 Oct · 2 guests

−€7€164 →

Google · Trip.comSun 1 Nov · 3 guests

−€4€212 →

Alerts

Hear about it the way you work. In the app, by email, or straight into your own systems.

In the app

As it happens

The live count sits on the queue and in the browser tab, so you see what changed without looking for it.

By email

Instant, daily or weekly

Each person on your team picks their own. Digests land at 08:00 hotel time.

By webhook

Signed, per event

Every undercut that clears your alert rule goes to an endpoint you run: your PMS, your channel manager, your own tools.

Booking engines and groups

Built for booking engines and groups too. Every property in one account, and events your systems can act on.

Run parity across a portfolio from one account, or build it into the booking engine your hotels already use. Every event is signed, so your side can trust what arrives.

Signed with HMAC-SHA256 in an X-StayParity-Signature header
One signing secret per account, prefixed whsec_
Amounts in euro cents, whole numbers, never floats

POSTdisparity.openedIllustrative

X-StayParity-Signature: t=1791543720,v1=5f0c…e21a

{
  "version": 1,
  "event": "disparity.opened",
  "disparityId": "dsp_8f2kq0",
  "hotel": { "id": "htl_aurora", "name": "Hotel Aurora" },
  "ota": "booking",
  "stayDate": "2026-10-16",
  "occupancy": 2,
  "directPriceEurMinor": 18900,
  "otaPriceEurMinor": 17900,
  "deltaEurMinor": 1000,
  "deltaPct": 5.3,
  "confidence": "confirmed",
  "detectedAt": "2026-10-09T12:02:00Z"
}

nights ahead, on Pro
guest counts per hotel
clean checks in a row to close an undercut
days at most between re-reads of a live one

Book-direct badge

Show guests your price is the one to book. A small badge on your own site, with the verdict from the last check.

Your price is the lowest we found. The badge says so, and lists what the OTAs charge.

Add it with one tag

<!-- StayParity badge. Put it where guests pick dates. -->
<script src="https://badge.stayparity.com/embed.js"
        data-hotel="wk_aurora"
        data-book-url="https://hotelaurora.gr/book"
        async></script>

Your hotel's key is on the Badge page in the portal.

hotelaurora.gr/rooms/deluxe-double

Hotel AuroraRooms · Offers · Nafplio · Contact

Deluxe Double

Fri 16 – Sat 17 Oct · 2 guests · Breakfast included

€189 / night

Book now

Best price, right here

€189direct

Booking.com€199
Expedia€204
Google · Trip.com€196

Save €7 by booking direct

Book direct

Prices checked 2 hours ago

Illustrative. Hotel Aurora is a fictional hotel.

EU note

Pricing lower on your own site is your call again.

Booking.com is a gatekeeper under the EU's Digital Markets Act, and has had to meet those obligations since 14 November 2024. One of them: it can't require your prices elsewhere, your own site included, to be no lower than its own. StayParity shows you where you stand, channel by channel.

A summary, not legal advice. Your contracts and national rules still apply.

Pricing

Priced by how far ahead you sell. Same checks, same matching and the same alerts on every plan. What changes is how many nights ahead we watch, and the monthly allowance of checks that takes.

Trial

See what we find before you decide anything.

30nights ahead

Free

Nights 0–6 checked daily
Nights 7–30 every 4 days

Basic

Most hotels

For hotels whose guests book within the season.

60nights ahead

Talk to us

Nights 0–6 checked daily
Nights 7–30 every 4 days
Nights 31–60 every 20 days

Pro

For groups, and hotels whose guests plan far ahead.

90nights ahead

Talk to us

Nights 0–6 checked daily
Nights 7–30 every 4 days
Nights 31–90 every 20 days

On every plan

Like-for-like matching: room, board, cancellation, guests
Booking.com, Expedia and every Google Hotels seller
Up to 3 guest counts per hotel
The live, fixed and dismissed queue, with Re-check now
In-app, email and signed webhook alerts
The book-direct badge for your site

Questions

What hotels ask us first. Anything else, ask us.

How much does it cost?: Every price is quoted, because it follows how many hotels you have and how far ahead you sell. Ask through the form and we come back with one. The first check is free: we read the next 30 nights and send you what we find.
Which channels do you check?: Booking.com, Expedia, and every seller Google Hotels lists beside your hotel, whoever that is on the day. When a check finds Booking.com or Expedia undercutting you and we have your listing there, we confirm it on that channel's own page, and the queue shows which undercuts are confirmed.
How often do you check?: Every night of the coming week daily, the rest of the month every fourth day, and further out every twentieth day, as far ahead as your plan watches. A stay with a live undercut is re-read at least every four days, so a fix is noticed, and you can re-check any stay yourself from the queue.
What does like for like mean?: The same room, on the same board, cancellation terms and tax basis, for the same number of guests. A comparison that cannot be matched that closely still shows, labelled Cheapest rooms rather than Same room. We check one-night stays at up to 3 guest counts per hotel.
Do I need to connect my booking engine?: No. If your site runs on BON, we read your direct price the way a guest sees it. On any other engine, we use the price Google Hotels shows for your official site. There is nothing to install and no access to your systems.
What do you need from me to start?: Your hotel's name and location, the currency you sell in, the guest counts you care about (up to 3), and your booking engine or Google listing. Your Booking.com and Expedia listing links let us confirm what we find. Our team sets up the hotel, your alert rule and your team's access.
Who gets the alerts, and when?: Everyone you invite. Undercuts show in the app as they are found, each person picks instant, daily or weekly email or none, and a signed webhook can send them to your own systems. Your alert rule sets the smallest gap worth hearing about, in money and in percent, and which channels count.
What happens when I fix a price?: Mark the undercut as fixed and it leaves the queue while we re-check the stay. If the undercut is still there, it opens again as a new one. Undercuts also close on their own once two scheduled checks in a row find the price back at parity.
Can I run several hotels?: Yes. One account holds every hotel, each with its own queue, and your team as admins or members.
What data do you keep?: Public prices, the ones any traveller sees. We never see your bookings or your guests. Individual checks are kept for 90 days, and the nightly price history for 400.

Free check

See who's undercutting you.

Tell us your hotel. We run a like-for-like check against Booking.com, Expedia and Google for the next 30 nights, and send you what we find.

1We find your hotel on Booking.com, Expedia and Google Hotels.
2We match the same room on the same terms against your own site.
3You get the undercuts, night by night, with the gap in money and in percent.

Or write to hello@stayparity.com

We use what you send only to reply to you.