#1↓NaN
Kiwi Size Chart & Recommender
Staytuned · Reduce returns and increase sales with clean size charts and AI-powered size recommenders
Rating
4.80★
Reviews
1,035
$6+/mo
Shopify App Store · refreshed Jun 11, 2026
Categories / Product comparison
Best Product comparison apps for Shopify.
177 active apps, 3,505 total reviews, 4.71★ average. Live App Store data, daily rank-race for the top incumbents, and the apps merchants picked this week.
Active apps
177
live in this category today
Total reviews
3.5k
across the niche
Avg rating
4.71
review-count weighted
Built for Shopify
10%
of the niche carries the badge
Free apps
10%
or freemium
Leaderboard
Top 20 product comparison apps.
Ordered by live position on the Shopify product comparison category page — what merchants actually see browsing the niche — filtered to 4.0★+ for credibility. The ↑ arrow marks 7-day climbs on the category page; +N is new reviews in the same window.
- #2↓NaN
MP Size Chart & Size Guide
Shopplaza · Reduce returns & boost conversions with customizable size charts & AI size recommendations
Rating
5.00★
Reviews
835
BFS$6+/mo - #3↓NaN
Smart Size Chart & Fit Finder
SmartSize · Instant size with 'Find my size' quiz and advanced size charts to boost sales and reduce returns
Rating
4.90★
Reviews
129
BFS$9+/mo - #4↓NaN
BF Size Chart & Size Guide
Relentless Apps · Size Chart App to easily add and customize size charts & size guides for all your products.
Rating
4.80★
Reviews
124
BFS$5+/mo - #5↓NaN
ESC Size Charts
Eastside Co® · Clearly show product sizes and reduce return rates with size charts and size guides.
Rating
4.50★
Reviews
123
BFS$4+/mo - #6↓NaN
W3 Product Accessories
W3trends · One click upsells for related products and accessories
Rating
4.70★
Reviews
113
$6+/mo - #7↓NaN
CSC: Size Chart & Size Guide
TaskHusky · Cut returns with size charts, size guides & size recommenders that help shoppers find their fit.
Rating
4.80★
Reviews
90
BFS$6+/mo - #8↓NaN
Tably Comparison & Spec Tables
NextGen Software · Help shoppers compare products, review specs, and choose faster with dynamic comparison and specs.
Rating
5.00★
Reviews
84
$6+/mo - #9↓NaN
GA: Size Chart & Size Guide
GoodApps · Create size charts and include details: size swatches, true to size recommendations, and lazy sizes
Rating
4.80★
Reviews
74
$6+/mo - #10↓NaN
Lavar Product Labels & Badges
Lavar · Add product labels & badges , size charts & GDPR cookie banner to build trust and reduce returns
Rating
4.90★
Reviews
62
BFSFree - #11↓NaN
Jotly Size Chart & Size Guide
Jotly Apps · Add size guide & size charts that matches your brand, lightweight, fast, won’t slow down your store
Rating
5.00★
Reviews
61
BFS$6+/mo - #12↓NaN
Antla AI Virtual Try On
Antla · Increase Sales By Offering Shoppers a Virtual Try-On Experience That Works With Your Size Chart
Rating
5.00★
Reviews
54
BFS$19+/mo - #13↓NaN
Libautech: Amazon Buy Button
Libautech · Maximize Real-Time Sales with the Easy-to-Use Amazon 'Buy Now' Button
Rating
4.80★
Reviews
48
$9+/mo - #14↓NaN
Bear Specs & Compare
Bear Apps · Help customers choose faster to buy more with specification and comparison tables.
Rating
4.80★
Reviews
46
BFS$6+/mo - #15↓NaN
ILM Size Chart & Size Guide
ILM TECH · Size Chart & Size Guide: Your seamless solution for precise sizing guidance, reduce return.
Rating
4.90★
Reviews
46
BFS$4+/mo - #16↓NaN
Equate ‑ Product Compare
Softpulse Infotech · Help customers to compare product & buy the best product from available similar items on your store.
Rating
4.80★
Reviews
37
BFS$8+/mo - #17↓NaN
Fit Quiz: Size Recommender
Easysize ApS · Reduce returns and build shopper confidence with a size recommender for clothing & footwear brands
Rating
4.30★
Reviews
33
$35+/mo - #18↓NaN
Zify: Size Chart & Size Guide
Zifyapps · Allows you to assign readymade size chart templates for any of your products.
Rating
4.60★
Reviews
31
$1+/mo - #19↓NaN
GenLook: AI Virtual Try On
Genlook · AI virtual try-on that lets customers see clothes on themselves. Boost conversions, capture leads.
Rating
5.00★
Reviews
30
BFS$19+/mo - #20↓NaN
Pify Size Charts & Size Guides
pifyapp · Create professional size charts, boosting customer confidence and reducing returns for your store
Rating
5.00★
Reviews
30
BFSFree
Review growth
Top incumbents, traced daily.
Cumulative review count per day for the niche’s most- reviewed apps. The slope of each line IS the velocity — steeper slopes mean faster growth. Lines pulling away from the pack are the niche’s actual momentum leaders.
- Kiwi Size Chart & Recommender1.0k
- MP Size Chart & Size Guide835
- Smart Size Chart & Fit Finder129
- BF Size Chart & Size Guide124
- ESC Size Charts123
Shape of the niche
Pricing and rating distributions.
Where merchants actually pay, and where merchant sentiment actually lands. Useful for “is this niche price-anchored?” and “is the bar genuinely 4.5★+ or more like 3.8★?”
Pricing
Where this niche prices.
- Free12.4% · 22
- Under $20/mo62.7% · 111
- $20–$49/mo14.7% · 26
- $50–$99/mo4% · 7
- $100+/mo6.2% · 11
Rating
Where this niche rates.
- 5.0★55.7% · 49
- 4.5 – 4.99★26.1% · 23
- 4.0 – 4.49★10.2% · 9
- 3.0 – 3.99★6.8% · 6
- Below 3.0★1.1% · 1
Momentum · last 28 days
Who’s growing.
Apps adding the most reviews over the last 28days — the niche’s actual growth leaders, not just the cumulative incumbents. Pulled from Ongoing.AI’s daily review-count history.
+7
new reviews
Tably Comparison & Spec Tables
NextGen Software · Help shoppers compare products, review specs, and choose faster with dynamic comparison and specs.
Pattern
Rating
5.00★
Total reviews
84
+4
new reviews
GenLook: AI Virtual Try On
Genlook · AI virtual try-on that lets customers see clothes on themselves. Boost conversions, capture leads.
Pattern
Rating
5.00★
Total reviews
30
+3
new reviews
Antla AI Virtual Try On
Antla · Increase Sales By Offering Shoppers a Virtual Try-On Experience That Works With Your Size Chart
Pattern
Rating
5.00★
Total reviews
54
+3
new reviews
ADV Size Chart, Badges, Popups
L Commerce · Boost conversion & reduce returns with size chart, badges, labels, popups & variant descriptions
Pattern
Rating
5.00★
Total reviews
17
+2
new reviews
Smart Size Chart & Fit Finder
SmartSize · Instant size with 'Find my size' quiz and advanced size charts to boost sales and reduce returns
Pattern
Rating
4.90★
Total reviews
129
+1
new reviews
Beyond Size Chart
Beyond Ecommerce LLC · Create size charts from images, HTML, and Google Sheets. Show clean size guides on product pages.
Pattern
Rating
5.00★
Total reviews
2
+1
new reviews
Easy Specification Table
Particle Spectrum Labs, LLC · Easily create specification tables for all your store products. Supports metafields & customization.
Pattern
Rating
4.80★
Total reviews
13
+1
new reviews
Sizekick: AI Size Advisor
Sizekick · Replace size charts with AI. Reduce returns and boost sales with accurate size recommendations.
Pattern
Rating
5.00★
Total reviews
2
Methodology
Where the numbers come from.
Ratings, review counts, pricing, “Built for Shopify,” and category memberships come from the live Shopify App Store listing — refreshed daily by Ongoing.AI’s crawler. The leaderboard filters to apps rated 4.0★+ then orders by review count: a credibility-weighted definition of “best.” Rank race and movers come from daily category-page archives — each day’s position is the best (lowest) rank we observed across all pages of the Product comparison category. New entries are apps whose first-seen date lands in the last 28 days. Snapshot generated Jun 11, 2026.
Watch every product comparison switch as it happens.
Ongoing.AI tracks every Shopify brand’s app stack daily. Find the merchants on each app, catch the moment they install or churn, and reach out the same day.