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Shopify appwhat they say

CartFields for POS

Add custom fields to the cart, products or post purchase in your Shopify POS checkout. Staff can collect relevant data to extended order details on the invoice.

★★★★☆3.5 (4)
$10/moSingle Store$29/moMultiple Store$49/moUnlimited Stores
what mrrlens sees
MRR · Estimated$42–280
Opportunity—
Buyer threads · 30 d0
“The app has a significant issue: occasionally, during a sale, it fails and does not allow us to enter the required information.”
#1 complaint · Bugs/Reliability · 1 of 1 complaints read · analysed Nov 3, 2026 · source

01Revenue

$42–280

A month · the formula and every input are below

How this range is computed

reviews × installs-per-review × paying share × entry price

  • reviews: 4
  • entry price: $10
  • 7–20 active installs per published review (measured: median 12 on the 20 most-installed apps)
  • 15%–35% of installs on a paid plan

A range from public signals and the listed price, not a claim about the company’s books. Methodology.

Store data from the Shopify App Store listing, refreshed daily. Updated 2 d ago. Listed since 2024.

02Why users leave CartFields for POS

Bugs/Reliability1 review · 1 of 1

App intermittently fails during POS sale, blocking required data entry; no way to add missing or correct information afterward.

“The app has a significant issue: occasionally, during a sale, it fails and does not allow us to enter the required information.” source ↗

Sample: 1 recent complaint (1–3★ reviews) · clustered Nov 3, 2026 · complaints from Jul 2026–Jul 2026, almost all in the last 24 months · each review labelled by a model, quotes verbatim

03How to build a better CartFields for POS

Build difficultyMediumShopify POS API integration and offline reliability/data sync; no payments, regulation, hardware, or network effects.
Three build ideas that answer these complaintsIncluded in the day pass and Pro.
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04Who wants a better CartFields for POS

0 buyer threads in the last 30 days name CartFields for POS.

05Questions about CartFields for POS

How much revenue does CartFields for POS make?

MRRLens estimates CartFields for POS at $42–280 a month (low confidence). The range comes from public signals (reviews × installs-per-review × paying share × entry price), not from the company's books; the formula and its inputs are shown on this page.

What do users complain about most in CartFields for POS?

Across 1 recent complaints, the most common is bugs/reliability (1 of 1). App intermittently fails during POS sale, blocking required data entry; no way to add missing or correct information afterward.

See the full x-ray of CartFields for POS

Full 1-star breakdown with verbatim quotes, the build blueprint and every live thread — on every product.