Price intelligence for online shopping
That “52% off” might be the highest price all month.
SaleSniff checks prices every day and keeps the history. Before you buy, it tells you what the product actually cost over the last 30 days — and scores the discount out of 100.
Covering Shopee Philippines today, with more platforms to follow.
SaleSniff is built for the phone you shop on. Scan to open it.
salesniff.cee2labs.com
What a fake sale looks like
A seller can set the “original” price to anything they like. The discount badge is calculated from that number, not from what anyone ever paid. Here is the shape of it:
What the listing says
₱599
₱1,200 52% OFF
What we tracked for 30 days
- Lowest seen
- ₱549
- 30-day average
- ₱565
- Highest seen
- ₱599
The ₱1,200 never happened. Today's “sale” price is the highest this product has been in a month, and it is ₱34 above its own average. SaleSniff calls this one a fake sale and scores it accordingly.
Illustration of the method — not a live product listing.
How the Sniff Score works
Every tracked product gets one number from 0 to 100. It is built from two halves — who is selling it, and whether this price is actually good.
Seller Score
How much this shop can be trusted
- Seller rating40%
- Number of ratings25%
- How often this seller runs fake sales35%
Deal Score
How good this particular price is
- Price verdict30%
- Savings vs. the 30-day average30%
- Confidence in the verdict20%
- How much history we have20%
The balance shifts as we learn. With fewer than five price points on record, a product is judged mostly on its seller — 60% seller, 40% deal — because we do not yet know what its price normally does. Once we have more than thirty days of history that flips to 30% seller and 70% deal. The longer we watch something, the more the price itself is allowed to speak.
80 – 100
Great
Buy it
60 – 79
Decent
Fair price
40 – 59
Iffy
Look closer
0 – 39
Bad
Walk away
What you get
Detect fake sales
We compare the seller's claimed original price against what the product actually sold for over the last 30 days.
Track real prices
Daily price checks build a history, so you can see whether today's number is genuinely low or just loud.
Get price alerts
Set a target price on any product and get a notification the moment it actually drops there.
Find live vouchers
Promo codes are collected and re-checked every six hours, so the ones you see are the ones that still work.
From the blog
All posts →How Sale Pricing Works in Philippine Online Retail
The rules on advertised discounts are stricter than most shoppers realise. Here is what they say, and where the gap is.
The Crossed-Out Price Is Not a Price
Every discount badge is calculated from a number the seller typed in themselves. Here is what it actually means.
Shopee’s Sale Calendar: Which Dates Actually Matter
9.9, payday sales, flash deals, brand days — four different kinds of sale, and only some of them move prices.
The app itself runs on your phone
You shop on your phone, so that is where SaleSniff lives — it installs as an app, works offline, and can send you a price alert without a browser open. Scan the code above, or open salesniff.cee2labs.com on your phone.