Culsin ‑ B2B Registration Form vs Singleton | Verify Customers
Two Shopify apps, side by side: detected stores, momentum, reviews, plans, listed features and who runs each. Store counts as of Oct 13, 2026 for Culsin, Nov 9, 2026 for Singleton.
The short answer
- Both list a free plan. Paid plans start at $25/month for Culsin and $19.99/month for Singleton.
- Singleton lists 13 features Culsin’s listing doesn’t mention, including Auto-approve, Auto-decline, Custom display.
Head to head
Authorizing customers to see prices and "Add to cart" buttons
- United States
- Canada
- Germany
Momentum
New reviews each month
Review pace is the clearest public read on how fast an app is winning new merchants.
Free
- · Custom form fields
- · EU VAT ID validation via VIES
- · Shopify Flow triggers and actions
- · Unlimited applications
- · Write field values to customer metafield
Pro
- · Automatic Shopify B2B Company creation
- · Everything in Standard
- · UK VAT, US EIN, and Canadian BN validati
Free Plan
- · All options for approving customers
- · Custom message for unapproved customers
- · Email notifications about new customers
- · Emails to customers after approval
- · Hide prices for unapproved users
- · Hide store pages for unapproved users
Basic Plan
- · All options for approving customers
- · App functionality in your live store
- · Custom message for unapproved customers
- · Email notifications about new customers
- · Emails to customers after approval
- · Hide prices for unapproved users
PRO Plan
- · App functionality in your live store
- · Approve customers based on customer tags
- · Auto-assign selected tags to customers
- · Everything in Basic Plan
- · Extended registration with custom fields
- · Live chat support
Coverage counts what each App Store listing names. Every feature, checked off app by app, is in Shoplist.
See every featureAdd a B2B registration form to your storefront without touching any code. Customers submit company details and VAT IDs, you review applications in a clean dashboard, and approve or deny with a single click. Approved customers are tagged, set tax exempt, and optionally linked to a Shopify B2B Company record. Custom fields write to customer metafields. Shopify Flow triggers and actions included.
Run a wholesale store on any plan, no Plus upgrade needed. New customers register, you approve or decline them manually or automatically by customer tag. Until approved, visitors see your custom message instead of prices and Add to Cart buttons, and locked pages redirect to login. Collect company name, VAT number or phone with unlimited custom registration fields.
- Review and approve or deny applications from your Shopify admin dashboard
- Validate EU, UK, US, and Canadian tax IDs against live government registries
- Tag customers, set tax exempt, and write VAT ID to metafields on approval
- Shopify Flow triggers and actions — automate approvals in both directions
- Approve/decline selected customers one by one, or based on customers tags
- Create your own responsive registration form, with custom fields
- Hide prices and "add to cart" buttons for not approved customers
- Hide store content for not approved customers and redirect them to login page
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 |  Culsin |  Singleton |
|---|---|---|
| Detected stores | Not published | 183 |
| Net store change, 28 days | 0 | −3 |
| Stores added, 28 days | Not enough data | Not enough data |
| Big-brand share | Not enough data | Not enough data |
| Top store categories | Not published | Apparel & Accessories, Health & Beauty, Home & Garden |
| Top store countries | Not published | United States, Canada, Germany |
Reviews
| Measure | Culsin | Singleton |
|---|---|---|
| App Store rating | Not published | 5.0 ★ |
| App Store reviews | Not published | 82 |
| New reviews, 28 days | Not enough data | 0 |
| Reviewers a year or more in | Not enough data | Not enough data |
FAQ
Culsin and Singleton: common questions
- Is Culsin or Singleton cheaper?
- Both list a free plan. Paid plans start at $25/month for Culsin and $19.99/month for Singleton. Shoplist compares base prices only between monthly plans in the same currency; usage charges and annual plans vary, so check each plan’s limits.
- What features does each app list that the other doesn’t?
- Culsin lists 1 the others don’t mention, such as Custom rules. Singleton lists 13 the others don’t mention, such as Auto-approve, Auto-decline, Custom display, Custom fields. A feature missing from a listing may still be supported; this compares what each App Store listing says.
- 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 Oct 13, 2026 for Culsin, Nov 9, 2026 for Singleton; 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 Oct 13, 2026 for Culsin, Nov 9, 2026 for Singleton. 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.