Loopmello Post‑Purchase Intent vs SizeEcho
Two Shopify apps, side by side: detected stores, momentum, reviews, plans, listed features and who runs each. Store counts as of Aug 6, 2026 for Loopmello Post‑Purchase Intent, Nov 13, 2026 for SizeEcho.
The short answer
- Only SizeEcho lists a free plan.
- Loopmello Post‑Purchase Intent lists 8 features SizeEcho’s listing doesn’t mention, including Analytics, Attribution, Custom styles.
Head to head
Free
- · 75 fit responses / month
- · Overview, Products, Sizes
- · Requires Klaviyo
Core
- · 500 fit responses / month
- · Overview, Products, Sizes
- · Requires Klaviyo
Scale
- · 2,500 fit responses / month
- · Product CSV export
- · Recipe pack for Flows
- · Requires Klaviyo
- · Size watchlist + thresholds
Coverage counts what each App Store listing names. Every feature, checked off app by app, is in Shoplist.
See every featureLoopmello helps brands understand why customers bought, not only what they ordered. Collect answers through a post-purchase widget or shareable survey links, then use those answers as intent data for Klaviyo segmentation and retention flows. Merchants can review responses in the dashboard and use them to improve follow-up, product messaging, and repeat purchase campaigns.
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.
- Post-purchase widget that asks one clear question after checkout
- Shareable survey links for campaigns, feedback, and product research
- Klaviyo-ready intent data for segments and retention flows
- 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
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 |  Loopmello Post‑Purchase Intent | |
|---|---|---|
| Detected stores | Not published | Not published |
| Net store change, 28 days | 0 | Not enough data |
| Stores added, 28 days | Not enough data | Not enough data |
| Big-brand share | Not enough data | Not enough data |
| Top store categories | Not published | Not published |
| Top store countries | Not published | Not published |
Reviews
| Measure | Loopmello Post‑Purchase Intent | |
|---|---|---|
| App Store rating | Not published | Not published |
| App Store reviews | Not published | Not published |
| New reviews, 28 days | Not enough data | Not enough data |
| Reviewers a year or more in | Not enough data | Not enough data |
Pricing
| Measure | Loopmello Post‑Purchase Intent | |
|---|---|---|
| Free plan | Not listed | Yes |
| Lowest paid monthly plan | No monthly plan listed | $29/month |
| Longest free trial | Not listed | Not listed |
| Plans listed | Not published | 3 |
Listing
| Measure | Loopmello Post‑Purchase Intent | |
|---|---|---|
| Shopify category rank | #131 | Not enough data |
| Shopify App Charts | Not on this week’s charts | Not on this week’s charts |
| Built for Shopify | No | No |
| Launched | Jul 20, 2026 | Nov 13, 2026 |
| Languages | 1 | 1 |
| Developer | Loopmello | SizeEcho |
FAQ
Loopmello Post‑Purchase Intent and SizeEcho: common questions
- Is Loopmello Post‑Purchase Intent or SizeEcho cheaper?
- Only SizeEcho 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.
- What features does each app list that the other doesn’t?
- Loopmello Post‑Purchase Intent lists 8 the others don’t mention, such as Analytics, Attribution, Custom styles, Customer segments. SizeEcho lists 2 the others don’t mention, such as Analytics dashboard, Customer satisfaction. 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 Aug 6, 2026 for Loopmello Post‑Purchase Intent, Nov 13, 2026 for SizeEcho; 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 Aug 6, 2026 for Loopmello Post‑Purchase Intent, Nov 13, 2026 for SizeEcho. 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.