B2B Registration Forms Builder vs Culsin ‑ B2B Registration Form
Two Shopify apps, side by side: detected stores, momentum, reviews, plans, listed features and who runs each. Store counts as of Nov 9, 2026 for B2B Registration Forms Builder, Oct 13, 2026 for Culsin.
The short answer
- Only Culsin lists a free plan. Paid plans start at $5.99/month for B2B Registration Forms Builder and $25/month for Culsin.
- B2B Registration Forms Builder lists 3 features Culsin’s listing doesn’t mention, including Custom fields, Registration forms, Tagging.
Head to head
- Japan
- United Kingdom
- United States
Momentum
New reviews each month
Review pace is the clearest public read on how fast an app is winning new merchants.
BASIC
- · Applicable to Basic Shopify plan.
STANDARD
- · Applicable to Standard Shopify plan.
ADVANCED
- · Applicable to Advanced Shopify plan.
PLUS
- · Applicable to Shopify Plus plan.
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
Coverage counts what each App Store listing names. Every feature, checked off app by app, is in Shoplist.
See every featureRegistration Forms Builder app enables you to create multiple signup forms to register different types of customers: B2B, Wholesale, etc. Add default & custom fields to personalize each form & collect required information. The plugin supports checkboxes, radio buttons, & 13 other field types. Auto-assign user tags on registration & enable user validation on selected forms for manual approval or rejection.
Add 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.
- Create multiple customer registration form to register different customer types
- Add default and custom fields to collect info at customer account registration
- Signup forms supports 15 custom field types
- Add dependable custom fields to keep form clean and show fields when needed
- 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
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 | B2B Registration Forms Builder |  Culsin |
|---|---|---|
| Detected stores | 16 | 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 | Apparel & Accessories, Food, Beverages & Tobacco, Toys & Games | Not published |
| Top store countries | Japan, United Kingdom, United States | Not published |
Reviews
| Measure | B2B Registration Forms Builder | Culsin |
|---|---|---|
| App Store rating | 5.0 ★ | Not published |
| App Store reviews | 3 | Not published |
| New reviews, 28 days | 0 | Not enough data |
| Reviewers a year or more in | Not enough data | Not enough data |
Pricing
| Measure | B2B Registration Forms Builder | Culsin |
|---|---|---|
| Free plan | Not listed | Yes |
| Lowest paid monthly plan | $5.99/month(ahead) | $25/month |
| Longest free trial | 7 days | Not listed |
| Plans listed | 4 | 2 |
Listing
| Measure | B2B Registration Forms Builder | Culsin |
|---|---|---|
| Shopify category rank | #62(ahead) | #101 |
| Shopify App Charts | #25 in Accounts and login | Not on this week’s charts |
| Built for Shopify | No | No |
| Launched | May 17, 2024 | May 22, 2026 |
| Languages | 1 | 1 |
| Developer | Addify | Culsin |
FAQ
B2B Registration Forms Builder and Culsin: common questions
- Is B2B Registration Forms Builder or Culsin cheaper?
- Only Culsin lists a free plan. Paid plans start at $5.99/month for B2B Registration Forms Builder and $25/month for Culsin. 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?
- B2B Registration Forms Builder lists 3 the others don’t mention, such as Custom fields, Registration forms, Tagging. Culsin lists 3 the others don’t mention, such as Custom rules, Hide content, Restrict access. 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 Nov 9, 2026 for B2B Registration Forms Builder, Oct 13, 2026 for Culsin; 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 9, 2026 for B2B Registration Forms Builder, Oct 13, 2026 for Culsin. 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.