Amplius Customer Fields vs Singleton | Rich Registration
Two Shopify apps, side by side: detected stores, momentum, reviews, plans, listed features and who runs each. Store counts as of Nov 8, 2026.
The short answer
- Singleton is detected on 8.8× as many Shopify stores as Amplius Customer Fields: 70 vs 8 as of Nov 8, 2026.
- On the Shopify App Store: Amplius Customer Fields 3.6 from 16 reviews and Singleton 4.7 from 21 reviews.
- Paid plans start at $2.99/month for Amplius Customer Fields and $9.99/month for Singleton.
- Amplius Customer Fields and Singleton list the same 2 features.
Head to head
Build your own registration form with custom form fields
- Italy
- Czechia
- France
- United States
- Germany
- Canada
Momentum
New reviews each month
Review pace is the clearest public read on how fast an app is winning new merchants.
Growth
- · Collect customer data on registration
- · Update customer data on account page
- · Works with new customer accounts
Base Plan
- · All features included
Coverage counts what each App Store listing names. Every feature, checked off app by app, is in Shoplist.
See every featureTransform how you collect and manage customer information in your store. Collect VAT/Tax ID, birthdays, measurements, preferences or any additional data you need - all saved directly in native metafields. Let customers update their details through their account page and share information seamlessly with other apps. No external databases, no data lock-in.
It's important to know about as much as possible about customers. This app will help with better understanding of the clients habits and needs. That knowledge will allow merchant to improve it's services and finally make more profit of his business. You can create unlimited custom fields in registration form and get all required data about your customers, that cannot be done with standard registration form.
- Add extra fields to the Shopify sign up form
- Works with metafield data type definitions
- Easy to read and edit data directly from the customer page
- In a few simple steps you can independently add additional fields
- Add unlimited custom fields to your registration form, with own validations
- Send mail notifications for administrators after new customer is registered
- Allow to customers to edit theirs datas in theirs own accounts
- Copy customers data to "Customer Note" field, displayed in customer detail 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 |  Amplius Customer Fields |  Singleton |
|---|---|---|
| Detected stores | 8 | 70(ahead) |
| Net store change, 28 days | 0 | −3 |
| Stores added, 28 days | Not enough data | 2 |
| Big-brand share | Not enough data | Not enough data |
| Top store categories | Hardware, Apparel & Accessories, Baby & Toddler | Apparel & Accessories, Health & Beauty, Home & Garden |
| Top store countries | Italy, Czechia, France | United States, Germany, Canada |
Reviews
| Measure | Amplius Customer Fields | Singleton |
|---|---|---|
| App Store rating | 3.6 ★ | 4.7 ★(ahead) |
| App Store reviews | 16 | 21(ahead) |
| New reviews, 28 days | 0 | 0 |
| Reviewers a year or more in | Not enough data | Not enough data |
Pricing
| Measure | Amplius Customer Fields | Singleton |
|---|---|---|
| Free plan | Not listed | Not listed |
| Lowest paid monthly plan | $2.99/month(ahead) | $9.99/month |
| Longest free trial | 14 days | 7 days |
| Plans listed | 1 | 1 |
Listing
| Measure | Amplius Customer Fields | Singleton |
|---|---|---|
| Shopify category rank | #111 | #70(ahead) |
| Shopify App Charts | Not on this week’s charts | #15 in Accounts and login |
| Built for Shopify | No | No |
| Launched | Nov 16, 2022 | Jul 31, 2019 |
| Languages | 1 | 1 |
| Developer | inkOfPixel | Singleton software |
FAQ
Amplius Customer Fields and Singleton: common questions
- Which is more popular, Amplius Customer Fields or Singleton?
- Singleton is detected on 8.8× as many Shopify stores as Amplius Customer Fields: 70 vs 8 as of Nov 8, 2026.
- Is Amplius Customer Fields or Singleton cheaper?
- Paid plans start at $2.99/month for Amplius Customer Fields and $9.99/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.
- Which has better reviews, Amplius Customer Fields or Singleton?
- On the Shopify App Store: Amplius Customer Fields 3.6 from 16 reviews and Singleton 4.7 from 21 reviews.
- 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 8, 2026; 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 8, 2026. 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.