Trial
See what we find before you decide anything.
30nights ahead
Free
- Nights 0–6 checked daily
- Nights 7–30 every 4 days
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 the moment one of them undercuts 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
ChannelPrice for the stay
- Your siteDirect · hotelaurora.gr€189
- Booking.comUndercut €10 · 5.3%€179
- Expedia€5 above you€194
- Google · Official siteMatch€189
Illustrative · Hotel Aurora is a fictional hotel
Channels
Booking.com and Expedia direct, plus every seller in Google Hotels. Whoever quotes a price for your room, we read it and put it next to yours.
Booking.com
Read on Booking.com's own page
Expedia
Read 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, 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
- Checking the next 30 nights on every channel…
- 2
Compare like for like
€142 against your €149 looks fine until you see one is non-refundable room only and the other is flexible with breakfast. We match room, rate, board and guests first.
Disparities
Hotel Aurora · next 90 nights
- Booking.comSat 24 Oct · 2 guests−€9€188 → €179
- ExpediaFri 30 Oct · 2 guests−€7€164 → €157
- Google · Trip.comSun 1 Nov · 3 guests−€4€212 → €208
- 3
Hear about it first
The undercut opens in your queue and 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 → €179As Booking.com lists it€142Non-refundable · Room onlyAs your site lists it€149Flexible · B&BLike for like: flexible, with breakfast€179 vs €188
- ExpediaFri 30 Oct · 2 guests−€7€164 → €157
- Google · Trip.comSun 1 Nov · 3 guests−€4€212 → €208
- 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 → €179
- ExpediaFri 30 Oct · 2 guests−€7€164 → €157
- Google · Trip.comSun 1 Nov · 3 guests−€4€212 → €208
Undercut on Booking.com
Booking.com is €9 under you for Sat 24 Oct, 2 guests.
In the appEmailWebhook
Disparities
Hotel Aurora · next 90 nights
- Checking the next 30 nights on every channel…
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 we open 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 queue, 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-RateParity-Signatureheader - One secret per endpoint, prefixed
whsec_ - Amounts in euro cents, whole numbers, never floats
X-RateParity-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 nowBest price, right here
€189direct
- Booking.com€199
- Expedia€204
- Google · Trip.com€196
Save €7 by booking direct
Book directPrices checked 2 hours ago
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.
Basic
Most hotelsFor 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
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 euros and percent.
Or write to hello@stayparity.com
We use what you send only to reply to you.