K: Contact Form Builder vs Powerful 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 Powerful Contact Form Builder.
The short answer
- On the Shopify App Store: K: Contact Form Builder 5.0 from 86 reviews and Powerful Contact Form Builder 4.9 from 2,661 reviews.
- Only Powerful Contact Form Builder lists a free plan.
- Powerful Contact Form Builder lists 32 features K: Contact Form Builder’s listing doesn’t mention, including Analytics, Applications, Auto-sync.
Head to head
Product Form, Easy Contact Form, Registration Form, Order Form
- 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 form, display anywhere
- · 200MB storage, 20MB file upload
- · 40 submissions/month
- · AI form creation
- · Custom SMTP & Mail API
- · Date & file upload fields
PREMIUM
- · 5GB storage, 30MB file upload
- · Cart, bulk order & floating forms
- · Create, verify & approve customers
- · Customer metafields, tags & notes
- · FREE+
- · Import/export submissions
PRO
- · 10K submissions/month
- · 20GB storage, 100MB file upload
- · Block email domains
- · Make.com & n8n integration
- · PREMIUM+
- · Share form links
ADVANCED
- · 20K submissions/month
- · 250MB file upload limit
- · 50GB storage
- · PRO+
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.
Create professional-looking forms with no coding using Powerful Contact Form Builder. Integrated with many 3rd party applications like Mailchimp, Klavio, Ominisend, Sendinblue, Google Calendar... Easy to display custom form on any pages such as: product page, collection page, cart page, home page, etc. Let your customers upload file or image when they submit your form.
- 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.
- Customer account registration forms, customer fields.
- Create custom forms with file upload, image upload option.
- Send autoresponder emails and integrate form data with Klaviyo, MailChimp, etc.
- Easy to build contact us form with captcha, condition logic, etc.
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 |  Powerful Contact Form Builder |
|---|---|---|
| Detected stores | Not published | 22,757 |
| Net store change, 28 days | 0 | +60 |
| Stores added, 28 days | Not enough data | 320 |
| Big-brand share | Not enough data | 13% |
| 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 | Powerful Contact Form Builder |
|---|---|---|
| App Store rating | 5.0 ★(ahead) | 4.9 ★ |
| App Store reviews | 86 | 2,661(ahead) |
| New reviews, 28 days | 9 | 108(ahead) |
| Reviewers a year or more in | 0% | 31%(ahead) |
Pricing
| Measure | K: Contact Form Builder | Powerful Contact Form Builder |
|---|---|---|
| Free plan | Not listed | Yes |
| Lowest paid monthly plan | No monthly plan listed | $7.45/month |
| Longest free trial | Not listed | 7 days |
| Plans listed | Not published | 4 |
Listing
| Measure | K: Contact Form Builder | Powerful Contact Form Builder |
|---|---|---|
| Shopify category rank | #3 | #1(ahead) |
| Shopify App Charts | #2 on Review surge in Forms | #22 on the Shoplist 100 |
| Built for Shopify | No | Yes |
| Launched | Jul 10, 2024 | Oct 12, 2017 |
| Languages | 1 | 7 |
| Developer | Kaktus | Powerful Form |
FAQ
K: Contact Form Builder and Powerful Contact Form Builder: common questions
- Is K: Contact Form Builder or Powerful Contact Form Builder cheaper?
- Only Powerful 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 Powerful Contact Form Builder?
- On the Shopify App Store: K: Contact Form Builder 5.0 from 86 reviews and Powerful Contact Form Builder 4.9 from 2,661 reviews.
- What features does each app list that the other doesn’t?
- K: Contact Form Builder lists 2 the others don’t mention, such as Drag-and-drop editor, Dynamic logic. Powerful Contact Form Builder lists 32 the others don’t mention, such as Analytics, Applications, Auto-sync, Bookings. 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 Powerful 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 Powerful 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.