Karto Partial COD & OTP Verify vs Devnzo: COD Fee & WhatsApp

Two Shopify apps, side by side: detected stores, momentum, reviews, plans, listed features and who runs each. Store counts as of Oct 14, 2026 for Karto Partial COD & OTP Verify, Nov 9, 2026 for Devnzo.

The short answer

  • On the Shopify App Store: Karto Partial COD & OTP Verify 5.0 from 2 reviews and Devnzo 5.0 from 2 reviews.
  • Only Karto Partial COD & OTP Verify lists a free plan. Paid plans start at $5/month for Karto Partial COD & OTP Verify and $9.89/month for Devnzo.
  • Devnzo lists 5 features Karto Partial COD & OTP Verify’s listing doesn’t mention, including Address validation, Drag-and-drop editor, Multi-language.

Head to head

App Store reviews

Karto Partial COD & OTP Verify: 2
Devnzo: 2
Open this comparison in ShoplistFree account. Every feature, store and change, side by side.
Pitch
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Categories
  • Pay later
  • Pay later
Languages
  • English
  • English
  • Spanish
  • Chinese (Simplified)
  • Chinese (Traditional)
  • +12 more
Launched
Jun 23, 2026
Apr 22, 2026
Built for Shopify
Not badged
Not badged
Reviews per month
1 last full month
2 last full month
Detected stores
0active installs
0active installs
Most common store size
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Top countries
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Momentum

New reviews each month

Review pace is the clearest public read on how fast an app is winning new merchants.

012MayJulAugKarto Partial COD & OTP Verify: 1 reviews in July 2026Karto Partial COD & OTP Verify: 1 reviews in August 2026Devnzo: COD Fee & WhatsApp: 1 reviews in May 2026Devnzo: COD Fee & WhatsApp: 1 reviews in July 2026Devnzo: COD Fee & WhatsApp: 2 reviews in August 2026
Karto Partial COD & OTP VerifyDevnzoCompleted months only
Free options
Free planFree trial
Free planFree trial
Monthly range
From $0 to $5/month
From $9.89 to $19.89/month
Plans
FREEFree
  • · Block COD for specific emails, tags, etc
  • · Configure COD Fee & Eligibility
  • · Offer discounts on full/partial payment
  • · Partial Payment ( 50 Orders / Month)
  • · Post-order address, mobile verify
  • · Pre-order Whatsapp number verify
PRO$5/month
7-day free trialWhatsapp message charges starts from $0.0028
  • · Block COD for specific emails, tags, etc
  • · Configure COD Fee & Eligibility
  • · Offer discounts on full/partial payment
  • · Partial Payment (Unlimited Orders)
  • · Post-order address, mobile verify
  • · Pre Order Whatsapp number verify
FreeFree to install
$0.008 per message after the first 750 free messages. Meta bills WhatsApp separately.
  • · COD fee: 150 orders/month
  • · Checkout rules and COD limits: Unlimited
  • · Live WhatsApp inbox: reply to customers
  • · Messages: 750 free once, then $0.008
  • · Rule templates for payment & shipping
  • · Support: Priority, from a real person
Starter Plan$9.89/month
7-day free trialFirst 3 months at $1/month after your 7-day free trial (Install by Dec 31, 2026)
  • · COD fee: 500 orders/month
  • · Cart recovery and restock alerts
  • · Checkout rules and COD limits: Unlimited
  • · Live WhatsApp inbox: reply to customers
  • · Messages: 3,000 free/month, then $0.005
  • · Rule templates for payment & shipping
Growth$19.89/month
7-day free trialFirst 3 months at $1/month after your 7-day free trial (Install by Dec 31, 2026)
  • · COD fee: Unlimited
  • · Cart recovery and restock alerts
  • · Checkout rules and COD limits: Unlimited
  • · Live WhatsApp inbox: reply to customers
  • · Messages: 10,000 free/mo, then $0.004
  • · Rule templates for payment & shipping
Coverage
8 of 13 features62%
9 of 13 features69%
Unique strengths
  • IP blocking
  • One-time password (OTP)
  • Phone confirmation
  • SMS confirmation
  • Address validation
  • Drag-and-drop editor
  • Multi-language
  • One-click order
  • +1 more
Pay later
62%8/13
69%9/13
COD management
88%7/8
50%4/8
Conversion and upsell
0%0/1
100%1/1
Form customization
25%1/4
100%4/4
445onlybothonly
Karto Partial COD & OTP VerifyDevnzo13 features listed across both App Store listings

Coverage counts what each App Store listing names. Every feature, checked off app by app, is in Shoplist.

See every feature
Works with also listed by another
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How it sells itself

Karto helps merchants secure cash on delivery orders with Partial COD payments. Collect a fixed or percentage deposit upfront, then collect the balance on delivery. Verify phone numbers through WhatsApp or SMS OTP, add COD fees, offer prepaid discounts, and show or hide COD by location, order value, product, customer, email, or tag.

Devnzo COD controls when Cash on Delivery shows at checkout, then follows up on official WhatsApp. Checkout: hide, rename or reorder payment and shipping methods. Limit COD by order value, customer, location, product or shipping method. Add a COD fee on chosen shipping rates. WhatsApp on your own number: OTP, order confirmation, shipping updates, abandoned cart recovery, back-in-stock alerts, live inbox.

Key points
  • Add extra COD fees
  • Unlimited orders
  • Controls COD orders
  • Assign specific payment methods to individual shipping rates
  • Restrict COD by order total, customer, location, product, or shipping method
  • Hide, rename, or reorder payment and delivery methods at checkout
Screenshots
COD FEE
COD FEECOD FEECOD FEE
devzno-cod-app
code-managed-pagesupport-pageautomation-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.

Showing only the rows where the apps differ.

Adoption

MeasureKarto Partial COD & OTP VerifyDevnzo
Detected storesNot publishedNot published
Net store change, 28 days0estimated0estimated
Stores added, 28 daysNot enough dataNot enough data
Big-brand shareNot enough dataNot enough data
Top store categoriesNot publishedNot published
Top store countriesNot publishedNot published

Reviews

MeasureKarto Partial COD & OTP VerifyDevnzo
App Store rating5.0 ★5.0 ★
App Store reviews22
New reviews, 28 daysNot enough dataNot enough data
Reviewers a year or more inNot enough dataNot enough data

Pricing

MeasureKarto Partial COD & OTP VerifyDevnzo
Free planYesNot listed
Lowest paid monthly plan$5/month(ahead)$9.89/month
Longest free trial7 days7 days
Plans listed23

Listing

MeasureKarto Partial COD & OTP VerifyDevnzo
Shopify category rank#43(ahead)in Pay later#45in Pay later
Shopify App ChartsNot on this week’s chartsNot on this week’s charts
Built for ShopifyNoNo
LaunchedJun 23, 2026Apr 22, 2026
Languages1English16English, Spanish, Chinese (Simplified)
DeveloperZivix TechnologiesDevnzo

FAQ

Karto Partial COD & OTP Verify and Devnzo: common questions

Is Karto Partial COD & OTP Verify or Devnzo cheaper?
Only Karto Partial COD & OTP Verify lists a free plan. Paid plans start at $5/month for Karto Partial COD & OTP Verify and $9.89/month for Devnzo. 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, Karto Partial COD & OTP Verify or Devnzo?
On the Shopify App Store: Karto Partial COD & OTP Verify 5.0 from 2 reviews and Devnzo 5.0 from 2 reviews.
What features does each app list that the other doesn’t?
Karto Partial COD & OTP Verify lists 4 the others don’t mention, such as IP blocking, One-time password (OTP), Phone confirmation, SMS confirmation. Devnzo lists 5 the others don’t mention, such as Address validation, Drag-and-drop editor, Multi-language, One-click order. 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 Oct 14, 2026 for Karto Partial COD & OTP Verify, Nov 9, 2026 for Devnzo; 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 Oct 14, 2026 for Karto Partial COD & OTP Verify, Nov 9, 2026 for Devnzo. 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.