SizeEcho vs Verba ‑ Post‑Purchase Surveys

Two Shopify apps, side by side: detected stores, momentum, reviews, plans, listed features and who runs each. Store counts as of Nov 13, 2026 for SizeEcho, Oct 13, 2026 for Verba.

The short answer

  • Only SizeEcho lists a free plan. Paid plans start at $29/month for SizeEcho and $9.99/month for Verba.
  • Verba lists 6 features SizeEcho’s listing doesn’t mention, including Analytics, Attribution, Conditional logic.

Head to head

Open this comparison in ShoplistFree account. Every feature, store and change, side by side.
Pitch
—
—
Categories
  • Analytics
  • Surveys
  • Surveys
Languages
  • English
  • English
Launched
Nov 13, 2026
Oct 7, 2026
Built for Shopify
Not badged
Not badged
Reviews per month
—
—
Detected stores
0active installs
0active installs
Most common store size
—
—
Top countries
—
—
Free options
Free planFree trial
Free planFree trial
Monthly range
From $0 to $79/month
$9.99/month
Plans
FreeFree
  • · 75 fit responses / month
  • · Overview, Products, Sizes
  • · Requires Klaviyo
Core$29/month
  • · 500 fit responses / month
  • · Overview, Products, Sizes
  • · Requires Klaviyo
Scale$79/month
  • · 2,500 fit responses / month
  • · Product CSV export
  • · Recipe pack for Flows
  • · Requires Klaviyo
  • · Size watchlist + thresholds
Standard$9.99/month
7-day free trial
  • · 300 AI chat messages a month
  • · AI drafts for blog posts and products
  • · Klaviyo sync, API, webhooks and Claude
  • · Results, NPS and revenue by answer
  • · Surveys on Thank you and Order status
Coverage
4 of 10 features40%
8 of 10 features80%
Unique strengths
  • Analytics dashboard
  • Email
  • Analytics
  • Attribution
  • Conditional logic
  • Data export
  • +2 more
Analytics
100%1/1
0%0/1
Visuals and reports
100%1/1
0%0/1
Surveys
33%3/9
89%8/9
Form customization
0%0/2
100%2/2
Submission management
33%1/3
67%2/3
Survey types
50%2/4
100%4/4
226onlybothonly
SizeEchoVerba10 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

SizeEcho shows apparel merchants which products and sizes run too small, true to size, or too big, using buyer answers after an order ships. After fulfillment it waits a delay you set, then sends one event to Klaviyo. Your Klaviyo Flow emails the fit check-in. Answers land in Overview, Products, and Sizes so you can improve size guides and product copy. Requires Klaviyo. SizeEcho does not email buyers itself.

Verba adds a survey block to your Thank you and Order status pages. Use a template or build your own with choice, text, NPS, star rating, scale, ranking, date and number questions. Show a question only when an earlier answer matches, and target surveys by order value, new or returning customers, and sample rate. Analytics show results for each question and the order revenue linked to each answer.

Key points
  • See which products and sizes run small or large from buyer fit answers
  • After shipping, send a fit check-in through your Klaviyo Flow
  • Buyers pick too small, true to size, or too big (optional reasons)
  • Review answers in Overview, Products, and Sizes to fix size guides
  • Show a survey block on your Thank you and Order status pages
  • Ask choice, text, NPS, star rating, scale, ranking, date and number questions
  • See results per question, NPS scores and order revenue linked to each answer
  • Send completed survey answers to your Klaviyo account as events
Screenshots
SizeEcho: see which sizes run small or large
SizeEcho Overview with example fit dataSizeEcho Sizes with example fit breakdownSizeEcho Products with example fit status
Demand Lab with a product idea from survey answers
Content Studio with blog post ideas drafted by ClaudeSurvey builder with a single select and an NPS questionPost-purchase survey shown on the Thank you 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

MeasureSizeEchoVerba
Detected storesNot publishedNot published
Net store change, 28 daysNot enough data0estimated
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

MeasureSizeEchoVerba
App Store ratingNot publishedNot published
App Store reviewsNot publishedNot published
New reviews, 28 daysNot enough dataNot enough data
Reviewers a year or more inNot enough dataNot enough data

Pricing

MeasureSizeEchoVerba
Free planYesNot listed
Lowest paid monthly plan$29/month$9.99/month(ahead)
Longest free trialNot listed7 days
Plans listed31

Listing

MeasureSizeEchoVerba
Shopify category rankNot enough data#117in Surveys
Shopify App ChartsNot on this week’s chartsNot on this week’s charts
Built for ShopifyNoNo
LaunchedNov 13, 2026Oct 7, 2026
Languages1English1English
DeveloperSizeEchohomedoctor LLC

FAQ

SizeEcho and Verba: common questions

Is SizeEcho or Verba cheaper?
Only SizeEcho lists a free plan. Paid plans start at $29/month for SizeEcho and $9.99/month for Verba. Shoplist compares base prices only between monthly plans in the same currency; usage charges and annual plans vary, so check each plan’s limits.
What features does each app list that the other doesn’t?
SizeEcho lists 2 the others don’t mention, such as Analytics dashboard, Email. Verba lists 6 the others don’t mention, such as Analytics, Attribution, Conditional logic, Data export. 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 13, 2026 for SizeEcho, Oct 13, 2026 for Verba; 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 13, 2026 for SizeEcho, Oct 13, 2026 for Verba. 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.