K: Contact Form Builder vs S: Contact Form Builder
Two Shopify apps, side by side: detected stores, momentum, reviews, plans, listed features and who runs each. Store counts as of Nov 7, 2026 for K: Contact Form Builder, Nov 8, 2026 for S: Contact Form Builder.
The short answer
- On the Shopify App Store: K: Contact Form Builder 5.0 from 86 reviews and S: Contact Form Builder 4.9 from 102 reviews.
- Only S: Contact Form Builder lists a free plan.
- S: Contact Form Builder lists 30 features K: Contact Form Builder’s listing doesn’t mention, including Analytics, Applications, Auto-sync.
Head to head
- United States
- Australia
- United Kingdom
Momentum
New reviews each month
Review pace is the clearest public read on how fast an app is winning new merchants.
FREE
- · 1 Popup/Embed form, 20 form fields
- · 60 email notifications/mo
- · Create form with AI
- · Custom email template
- · Custom form, field styles
- · SMTP
STARTUP
- · 3 Forms. Unlimited fields
- · Attach file
- · Auto response
- · Department
- · Duplicate form
- · Email services
PRO
- · 5 Forms
- · All features
- · Startup +
- · Unlimited fields
- · Unlimited storage size
UNLIMITED
- · All features
- · Pro +
- · Unlimited Forms
- · Unlimited storage size
Coverage counts what each App Store listing names. Every feature, checked off app by app, is in Shoplist.
See every featureEffortlessly connect with your customers to generate more leads and product sales with Contact Form Builder. Easy to build Popup Contact Form, Page Embedded Forms, Signup Form, Multi Step Forms & Floating Bubble Forms. Select the fields, add contact form file upload, ensuring you gather all the information in register form or data collection form.
Wondering why you need a contact form (contact us form) on your website? Why not just publish an email address instead? A contact form (contact us form) makes your store more interactive and useful. And a contact form (contact us form) will be very helpful to help you grow your business. You can easily create beautiful & professional contact forms, contact us pages.
- Effortlessly create forms and collect data from your customers.
- Customize the app to suit your website style.
- Trigger your form anywhere.
- Lots of form templates to save your time.
- Build contact form/popup contact form/contact us page easily with form builder
- Build many form types: contact/survey/product question/subscription form, etc
- Custom email messages, auto-response, integration of popular email services
- Manage Submissions: view submission history, report or export submissions easily
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 |  K: Contact Form Builder |  S: Contact Form Builder |
|---|---|---|
| Detected stores | Not published | 341 |
| Net store change, 28 days | 0 | −3 |
| Stores added, 28 days | Not enough data | 3 |
| Big-brand share | Not enough data | 16% |
| Top store categories | Not published | Apparel & Accessories, Home & Garden, Food, Beverages & Tobacco |
| Top store countries | Not published | United States, Australia, United Kingdom |
Reviews
| Measure | K: Contact Form Builder | S: Contact Form Builder |
|---|---|---|
| App Store rating | 5.0 ★(ahead) | 4.9 ★ |
| App Store reviews | 86 | 102(ahead) |
| New reviews, 28 days | 9(ahead) | 0 |
| Reviewers a year or more in | 0% | Not enough data |
Pricing
| Measure | K: Contact Form Builder | S: Contact Form Builder |
|---|---|---|
| Free plan | Not listed | Yes |
| Lowest paid monthly plan | No monthly plan listed | $8.99/month |
| Longest free trial | Not listed | 3 days |
| Plans listed | Not published | 4 |
Listing
| Measure | K: Contact Form Builder | S: Contact Form Builder |
|---|---|---|
| Shopify category rank | #3(ahead) | #34 |
| Shopify App Charts | #2 on Review surge in Forms | #11 in Forms |
| Built for Shopify | No | Yes |
| Launched | Jul 10, 2024 | Jun 3, 2021 |
| Languages | 1 | 1 |
| Developer | Kaktus | Storeify |
FAQ
K: Contact Form Builder and S: Contact Form Builder: common questions
- Is K: Contact Form Builder or S: Contact Form Builder cheaper?
- Only S: Contact Form Builder lists a free plan. Shoplist compares base prices only between monthly plans in the same currency; usage charges and annual plans vary, so check each plan’s limits.
- Which has better reviews, K: Contact Form Builder or S: Contact Form Builder?
- On the Shopify App Store: K: Contact Form Builder 5.0 from 86 reviews and S: Contact Form Builder 4.9 from 102 reviews.
- What features does each app list that the other doesn’t?
- S: Contact Form Builder lists 30 the others don’t mention, such as Analytics, Applications, Auto-sync, Automations. 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 7, 2026 for K: Contact Form Builder, Nov 8, 2026 for S: Contact Form Builder; 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 7, 2026 for K: Contact Form Builder, Nov 8, 2026 for S: Contact Form Builder. 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.