SizeID for Shopify App Store
SizeID is the #240 ranked product variant app on Shopify, with a free plan available, as of July 10, 2026.
SizeID is a Shopify App Store app by SizeID s.r.o., launched December 2019.
AppRanks data: SizeID ranks #240 in Product variant on Shopify App Store, placing it in the top 68% of that category.
AppRanks verdict
Generated from live marketplace data — refreshed daily
SizeID is a newly-listed Shopify app with a limited review volume. It is listed in the Product variant category on Shopify App Store, which AppRanks treats as the canonical taxonomy node for ranking and competitor comparison. no published reviews yet means feature claims are unverified by the wider merchant base. Without a published review base, the only fit-signal available is the developer's own documentation plus the marketplace's listing-quality audit (linked below). The free tier lets you trial the entry feature set without committing a payment method. AppRanks tracks rating, review count, pricing tier, and category position daily — the figures on this page reflect the most recent scrape from the canonical Shopify App Store listing.
Pros
- +Free tier available — no card required to evaluate
- +Published by SizeID s.r.o. — established developer track record
Cons
- −No public reviews yet — fit and reliability are unverified
Looking to switch from SizeID?
See SizeID's alternatives ranked by audit score, rating, and review velocity.
About SizeID
How SizeID works
Reduce returns and costs associated with them and increase the conversion of your store with the new SizeID Advisor SMART! Recommendation based on simple customer data: height, weight and age. Give your customers assurance from shopping and get useful data from purchases. SizeID Analytics offers you a number of data analysis tools that allow you to better optimize and plan. Customize your marketing communication, streamline logistics and achieve higher profits.
Screenshots
Key features
- 6000+ size charts of 750+ brands. Possibility to create your own.
- Easy size recommendations based on height, weight, and age.
- Size recommendations based on accurate body measurements.
- Family and friends connection to get recommendation even for them.
- Many tools for the analysis of data for better optimization and planning.
Standardized capabilities
Normalized capabilities detected for this app, comparable across the marketplace.
- Dimension ManagementDefine and manage dimensions for products or data analysis.
- Size ChartsProvide customers with detailed size charts to aid in product selection.
- Size RecommendationsProvide personalized size recommendations based on customer data.
Pricing plans
XSMALL19.90/month
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SMALL44.90/month
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Most popular MEDIUM79.90/month
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LARGE129.90/month
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Category rankings
As of Jul 10, 2026- Product variant#240of 358Top 68%
See 90-day rank history for each category
Track daily rank changes, category shifts, and position volatility.
Competitors & alternatives
SizeIDdoesn't have curated competitor matchups yet. Other tracked product variant apps on Shopify:
Frequently asked questions
What is SizeID?
SizeID is an app for Shopify. It is published on Shopify App Store and tracked daily by AppRanks, and it has been listed on the marketplace since 2019. It is listed under the Product variant category on AppRanks, where you can see its current category position, review-velocity trend, and how it compares against the top alternatives in the same space. Developed by SizeID s.r.o..
Is SizeID free?
SizeID does not offer a permanent free plan on Shopify. Pricing starts at 19.90, and the listed tiers are XSMALL, SMALL, MEDIUM. Trial availability and exact billing terms are mirrored from the live Shopify listing and may change between refresh cycles, so always confirm the headline price on the source marketplace before installing.
Who uses SizeID?
SizeID is actively installed across Shopify stores tracked by AppRanks. Its review base is still building, which usually maps to early-stage merchants and stores piloting a new workflow. It is part of the Product variant category on Shopify.
Where does SizeID rank on Shopify?
SizeID currently sits at position #240 in the Product variant category on Shopify. That places it in the top 67% of 358 apps tracked in the same category. Category positions are read from the live marketplace ranking and refresh on each scrape, so the number you see here reflects the most recent crawl rather than a long-running average.
What languages does SizeID support?
SizeID declares support for 7 languages on its Shopify marketplace listing: Czech, Slovak, Hungarian, Polish, English, German, with 1 additional locales documented on the marketplace listing. Language coverage is the locale set the developer has explicitly translated the app interface into — a broader set typically maps to a developer with international merchant traction.