PartPair vs Shelfcheck by Shelfworks
Two Shopify apps, side by side: detected stores, momentum, reviews, plans, listed features and who runs each. Store counts as of Nov 10, 2026 for PartPair, Nov 2, 2026 for Shelfcheck by Shelfworks.
The short answer
- Only Shelfcheck by Shelfworks lists a free plan. Paid plans start at $39/month for PartPair and $9/month for Shelfcheck by Shelfworks.
Head to head
Starter
- · 1 active source library
- · 3,000 published fitment relationships
- · 300 relationships during 3-day trial
- · CSV import, SKU match & review
Growth
- · 1 active source library
- · 20,000 published fitment relationships
- · Missing-model reports & CSV export
Pro
- · 10 active source libraries
- · 100,000 published relationships
- · Daily CSV checks create review drafts
Free
- · Fix up to 25 variants a month
- · Scan your whole catalog, no limit
Standard
Coverage counts what each App Store listing names. Every feature, checked off app by app, is in Shoplist.
See every featurePartPair helps merchants maintain fitment data in separate source libraries. Import a general CSV, map vehicle models and Shopify SKUs, and review exact variant matches before approval. Publish an immutable version for one source at a time, then restore an earlier version when needed. The product-page checker reads published fitment data; when active sources disagree, it displays Unconfirmed.
Shelfcheck checks your active variants for gaps that affect shipping and customs: missing weight, HS code or country of origin, missing barcode or SKU, duplicate SKUs or barcodes, no product image, shipping switched off, untracked stock. Each issue shows its impact, and a readiness score tracks progress. Set a weight, HS code or country on many variants at once, or copy customs details from a sibling variant.
- Import general fitment CSVs and review invalid or conflicting rows.
- Match exact Shopify SKUs and approve each product fitment relationship.
- Publish or restore a separate version for each fitment source.
- Show source-backed fitment results on product pages.
- Ten catalog rules, each one on or off, tuned to how you ship
- Bulk-set weight, HS code or country of origin on selected variants
- Copy HS code or country of origin from a sibling variant
- Products rechecked when they're created or edited
All the numbers
Every figure, side by side
A green dot marks the app ahead on a measured figure. Estimates, gaps and apps that leave no storefront trace never take the lead.
Adoption
| Measure |  Shelfcheck by Shelfworks | |
|---|---|---|
| Detected stores | Not published | Not published |
| Net store change, 28 days | 0 | 0 |
| Stores added, 28 days | Not enough data | Not enough data |
| Big-brand share | Not enough data | Not enough data |
| Top store categories | Not published | Not published |
| Top store countries | Not published | Not published |
Reviews
| Measure | Shelfcheck by Shelfworks | |
|---|---|---|
| App Store rating | Not published | Not published |
| App Store reviews | Not published | Not published |
| New reviews, 28 days | Not enough data | Not enough data |
| Reviewers a year or more in | Not enough data | Not enough data |
Pricing
| Measure | Shelfcheck by Shelfworks | |
|---|---|---|
| Free plan | Not listed | Yes |
| Lowest paid monthly plan | $39/month | $9/month(ahead) |
| Longest free trial | 3 days | 14 days |
| Plans listed | 3 | 2 |
Listing
| Measure | Shelfcheck by Shelfworks | |
|---|---|---|
| Shopify category rank | Not enough data | #247 |
| Shopify App Charts | Not on this week’s charts | #6 on Pricing moves in Operations - Other |
| Built for Shopify | No | No |
| Launched | Nov 10, 2026 | Oct 13, 2026 |
| Languages | 1 | 1 |
| Developer | PartPair | Sam Bartolotta |
FAQ
PartPair and Shelfcheck by Shelfworks: common questions
- Is PartPair or Shelfcheck by Shelfworks cheaper?
- Only Shelfcheck by Shelfworks lists a free plan. Paid plans start at $39/month for PartPair and $9/month for Shelfcheck by Shelfworks. Shoplist compares base prices only between monthly plans in the same currency; usage charges and annual plans vary, so check each plan’s limits.
- Where does this comparison’s data come from?
- Shoplist crawls Shopify storefronts to detect which apps each store runs, and reads each app’s Shopify App Store listing for reviews, pricing, features and integrations. Store counts are as of Nov 10, 2026 for PartPair, Nov 2, 2026 for Shelfcheck by Shelfworks; estimated figures are labeled.
How Shoplist compares apps
Store counts come from Shoplist’s crawl of Shopify storefronts, which detects the apps each store runs; they are as of Nov 10, 2026 for PartPair, Nov 2, 2026 for Shelfcheck by Shelfworks. Reviews, ratings, plans, features and integrations come from each app’s Shopify App Store listing. 28-day figures are labeled when estimated, and a figure that is missing or estimated never decides who leads. Read the methodology.