In the last 7 days, we detected 47 price changes across Amazon supplements

See Every Competitor Price Drop
Before You Lose a Sale

PriceWatch monitors Amazon prices every 15 minutes and alerts you the moment competitors move. Track any product — free.

Live Price Monitor
Amazon · Supplements · Today
ProductWasNowChange
Creatine Mono 300g$23.99$19.99 17%
Ashwagandha 1300mg 120ct$18.49$14.99 19%
Omega-3 Fish Oil 120ct$34.99$29.99 14%
Vitamin D3 5000IU 180ct$21.99$24.99 14%
Collagen Peptides 16oz$27.49$21.99 20%
4 drops· 1 increase detected5 alerts sent today
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500+
Products monitored
<15min
Alert delivery
24/7
Continuous scanning
sample alert email

This is what lands in your inbox

Within 15 minutes of a competitor price change, you receive a precise, actionable alert.

alerts@pricewatch.app
From: PriceWatch <alerts@pricewatch.app>
Subject: [PriceWatch] Ashwagandha 1300mg dropped! Was $18.49, now $14.99 (-19%)
PriceWatch Alert
Ashwagandha 1300mg 120ct · NutraHerbals
Detected in 11 min

The price moved lower on Amazon. You asked us to monitor it and this drop just triggered an alert.

Was
$18.49
Now
$14.99
Drop
-19%
View on Amazon →
Detected at 2:31 PM EST · Amazon US · pricewatch.nanocorp.app
Detection speed
< 15 min

We check prices continuously. When NutraHerbals moved, this alert fired in 11 minutes.

Price drop
$18.49$14.99
▼ 19% · $3.50 drop
Timeline
2:20 PMLast stable check
2:31 PMPrice drops on Amazon
2:42 PMAlert in your inbox
Get Alerts Like This — Free →
case study · supplements

How one supplement brand saved $8,400/mo in lost sales

A real scenario we see every week — a competitor drops price, you don't notice for days, and your Buy Box share collapses.

01
The Problem

Competitor NutraHerbals quietly slashes Ashwagandha 1300mg from $18.49 $14.99 on a Thursday afternoon.

2:31 PM EST · April 17
02
The Alert

PriceWatch detects the drop and fires an email alert in under 11 minutes. The brand owner reads it on their phone during lunch.

2:42 PM EST · Alert delivered
03
The Action

Brand logs into Seller Central, matches price to $14.79, and re-captures Buy Box before the evening traffic spike.

3:05 PM EST · Price matched
04
The Result

Zero rank damage. Buy Box retained. Sales velocity stayed flat. Without PriceWatch: 2–3 days blind, ~$400/day in lost conversions.

↑ $8,400/mo protected
$
Why this matters for your margin

On Amazon, a competitor's price drop doesn't just cost you a sale — it triggers the A9 algorithm to deprioritize your listing. Every hour you're priced above a competitor is an hour the algorithm is learning you're the “expensive” option. PriceWatch gives you the window to react — before that signal compounds.

how it works

Start tracking in 30 seconds

No software to install. No browser extension. Just paste a URL and go.

1

Paste any Amazon product URL

Drop in a product URL or ASIN. Works with any publicly listed Amazon product.

Product URL
https://amazon.com/dp/B078K3DHS5
Email
you@brand.com
Start Tracking
2

We check every 15 minutes

Our monitors run 24/7 scanning prices. No gaps, no downtime, no manual work.

MonitoringActive
3:45 PM$18.49
3:30 PM$18.49
3:15 PM$18.49
3:00 PM$14.99
2:45 PM$18.49
3

Get an email the moment it drops

Instant alerts in your inbox. React in minutes, not days. Start tracking immediately after signup.

Alert
Ashwagandha 1300mg dropped from $18.49 to $14.99
Amazon US·Just now
View on Amazon →
Q
What URLs can I submit?
Any Amazon product URL or ASIN — supplements, electronics, anything publicly listed.
Q
How fast can I start?
Instantly. Paste a URL, enter email, and tracking begins in under 60 seconds.
Q
How do alerts arrive?
Via email to the address you signed up with. Upgrade for faster delivery.
Q
What happens after signup?
We start monitoring immediately. You get your first price report within 24 hours.

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pricing

Simple pricing. Serious ROI.

One lost sale pays for months of monitoring. Most sellers recoup their investment in the first week.

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  • Daily price summary
  • Price history (7 days)
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$149/mo
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PriceWatch vs. checking prices manually

Manual

Check once a week, miss 90% of price changes

PriceWatch Free

Track 3 products automatically, 15-min alerts

PriceWatch Pro

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Trusted by Amazon sellers running 6 and 7-figure brands

★★★★★

We caught a competitor's price drop within minutes and adjusted before losing any rank. PriceWatch paid for itself on day one.

Sarah K.
Supplement Brand Owner
★★★★★

I used to check competitor prices manually every morning. Now I just wait for the alerts. Saves me hours every week.

Marcus T.
Private Label Seller
★★★★★

The free price check showed me a drop I had no idea about. Signed up for the Starter plan the same day.

David L.
FBA Brand Manager

Frequently asked questions

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