See which categories your rivals sell and you don't
RivalSweeper maps your range and every rival's into the same categories, scores each gap by how many rivals carry it, and writes a SWOT read refreshed weekly. Every claim is re-checked against real product titles before it is published.
Opens rivalsweeper.com, the service behind this page.
- Your category coverage next to the rival average, category by category
- Whitespace scored by how many rivals sell it, with the leading rival named
- Range scale compared: distinct products you list vs each rival
Captured Oct 15, 2026
In a published RivalSweeper sample of a fragrance house (163 products) vs 3 rivals, the house had 0% coverage in makeup & nails against a rival average of 20.3%; all 3 rivals sold it, led by one at 31.2% (149 products).
Source: rivalsweeper.comThe same read found a strength: gift sets & kits coverage of 26.4% for the house vs a 1.3% rival average.
Source: rivalsweeper.comIt also flagged a scale threat: one rival listed 1,491 distinct products, 9.1x the house's 163.
Source: rivalsweeper.comRange gaps are argued from opinion, not from rivals' catalogs
Category reviews and NPD pipelines need one answer: where does the market sell that we don't, and where are we already stronger? It is usually assembled from a few site visits and a sales deck, so the strongest voice wins and adjacent categories get missed because nobody counted them.
Counting by hand does not survive a competitor with 1,500 products, and naming differs by brand, so 'gift set', 'coffret' and 'kit' never line up in a spreadsheet. A gap that comes from a label rather than the range sends a development brief the wrong way.
Without it
- Site visits and a spreadsheet: Free and fine for one rival. Category naming differs by brand, counts drift, and nobody refreshes it until the next…
- Consultancy range reviews: Deep and tailored, but a one-off snapshot. RivalSweeper keeps the same comparison running weekly.
- Enterprise retail analytics suites: Broad market coverage, typically scoped through a sales process. RivalSweeper reads your named rivals' own…
With Range Gap Finder
- Your category coverage next to the rival average, category by category
- Whitespace scored by how many rivals sell it, with the leading rival named
- Range scale compared: distinct products you list vs each rival
- Coverage vs the whole set
- Whitespace scored
How it works
- 1
Add your store and the set
Add your own domain and the rivals you compete with for the same customer: 2 on Basic, 15 on Pro.
- 2
Catalogs mapped to categories
Your range and each rival's are read from public storefronts and grouped into the same categories, so coverage compares like with like.
- 3
Gaps scored, claims checked
Each category gets your coverage, the rival average and how many rivals carry it. Claims are re-checked against real product titles before publishing.
- 4
Weekly SWOT read
Strengths, weaknesses, threats and opportunities in plain sentences, refreshed weekly as rivals add and drop lines.
Features
Coverage vs the whole set
Your share in each category beside the rival average, for example perfume 41.1% vs 23.7%.
Whitespace scored
A category none of your range covers is ranked by how many rivals sell it. '3 of 3 rivals' is a stronger signal than one outlier.
Leading rival per gap
Who leads a category you lack and how deep they go, for example 31.2% of their range, 149 products.
Strengths to defend
Categories where you over-index the set, so the review protects what already sets you apart.
Range scale comparison
Distinct products you list against each rival, so breadth threats are stated in numbers.
Checked against product titles
Every claim is re-checked against real product titles before publishing, so a gap is not an artefact of a label.
Weekly refresh
Coverage and the SWOT read are refreshed weekly as rivals change their range.
What the gap analysis showed on Oct 15, 2026
A real, anonymized RivalSweeper read for a fragrance house. One clear gap, two strengths to defend and a scale threat, the inputs a category review needs.
| Category | You | Rival average |
|---|---|---|
| Perfume | 41.1% | 23.7% |
| Gift sets & kits | 26.4% | 1.3% |
| Bath & body care | 20.2% | 10.6% |
| Minis & travel sizes | 17.2% | 7.5% |
| Makeup & nails | 0% | 20.3% |
| Bags, jewelry & accessories | 0% | 11.4% |
| Skincare | 0% | 5.2% |
- Threat: Brand A outscales you: 1,491 distinct products, 9.1x your 163.
- Opportunity: Consider makeup & nails: none in your range, while 3 of 3 rivals sell it, led by Brand B at 31.2% (149 products).
Captured Oct 15, 2026 · See the full sample on rivalsweeper.com →
Who it's for
Category managers
You own category roles and the range review. You get coverage vs the set and scored whitespace to argue a category in or out with numbers.
Product development and NPD leads
You decide which line extensions get briefed. You see adjacent categories every rival already sells, and how deep the leader goes.
Heads of buying and merchandising
You balance breadth against depth. You see where rivals outscale you and where your range already over-indexes.
Works with
- CSV export (paid plans)
- REST API (Pro and up)
- MCP for Claude and other AI assistants
- RSS feeds
- Email alerts
- Shopify, WooCommerce, Magento and other storefronts (public pages)
Pricing
Billed monthly in USD, cancel any time, 14-day money-back on every plan. Start with the 14-day free trial, no card. Extra monitored domains $10 a month.
Basic
$39 per month
One category, two rivals
- 2 monitored domains plus your store
- 1 user
- Up to 10,000 products per competitor
- Competitor catalog and commercial reports
- 100 AI credits, MCP with limited credits
Pro
$199 per month
Category teams comparing against a full set
- 15 monitored domains, under $14 each
- 5 users
- Up to 20,000 products per competitor
- API 10,000 requests a month, plus MCP
- 1,000 AI credits, 1-business-day support
Enterprise
Custom quoted by sales
Many categories or brands
- Unlimited monitored domains (via sales)
- 20 users
- API 200,000 requests a month
- 10,000 AI credits
- Dedicated account manager, monthly strategy calls
Compared with the alternatives
- Site visits and a spreadsheet
- Free and fine for one rival. Category naming differs by brand, counts drift, and nobody refreshes it until the next review.
- Consultancy range reviews
- Deep and tailored, but a one-off snapshot. RivalSweeper keeps the same comparison running weekly.
- Enterprise retail analytics suites
- Broad market coverage, typically scoped through a sales process. RivalSweeper reads your named rivals' own storefronts, monthly.
What changed
- In a published RivalSweeper sample of a fragrance house (163 products) vs 3 rivals, the house had 0% coverage in makeup & nails against a rival average of 20.3%; all 3 rivals sold it, led by one at 31.2% (149 products). Source: rivalsweeper.com
- The same read found a strength: gift sets & kits coverage of 26.4% for the house vs a 1.3% rival average. Source: rivalsweeper.com
- It also flagged a scale threat: one rival listed 1,491 distinct products, 9.1x the house's 163. Source: rivalsweeper.com
Your first week
Start the free trial with your store and one rival; first data arrives within 24 hours after you confirm your email.
- Day 1: Add your store and the rival you most need to compare with; confirm your email.
- Day 2: First data within 24 hours: both catalogs read.
- Day 3 onward: Catalog changes surface within 48 hours. Book 15 minutes to add 2 rivals free.
- Day 7: Review coverage and whitespace before choosing a plan.
Security and data
- Reads public product pages and sitemaps only; no connection to your store or analytics is needed.
- Every figure traces to a dated observation and its product URL.
- Trial needs no card; plans are monthly, cancel any time, 14-day money-back on new subscriptions.
Questions
Does this show what rivals actually sell through?
No. It reads public storefronts, so coverage is what each rival lists, not sales volume. Pair it with your own sales data.
Is every whitespace category an opportunity?
No. '3 of 3 rivals sell it' shows the category exists in your set, not that it fits your brand or margin. It is the prompt for a business case.
How do you avoid false gaps from naming?
Every claim in the read is re-checked against real product titles before it is published.
How often is it refreshed?
Weekly. Catalog changes themselves surface within 48 hours, and new arrivals are often seen before rivals promote them.
How many rivals should I include?
The brands your customer would compare you with. Basic covers 2 plus your store; Pro covers 15; extra domains are $10 a month.
What do I need to provide?
Only domains. Nothing is installed and no store or analytics account is connected.
Take scored whitespace into your next range review
See the full gap analysis sample on RivalSweeper, then start the 14-day trial with your store and one rival. No card needed.
See a gap analysis on RivalSweeper