SizeID

Shopify product variants app by SizeID s.r.o.·A unique experience of buying clothes and footwear for your customers Higher revenue for your store

Snapshot

#406of 431 inProduct variants

SizeID is newly listed on the Shopify App Store. Ongoing.AI is observing daily category rank, search-keyword position, install footprint, and listing changes from launch — first tracked May 28, 2026. The trajectory is being captured before the first reviews accumulate.

CategoriesProduct variants

Pricing

From $19/mo

free_trial

Built for Shopify

No

Years live

6

launched Dec 4, 2019

Last updated

Jun 30, 2026

Shopify listing

Catalog position

Where SizeID sits in the App Store.

Rank and percentile inside the Product variants category — the competitive shape of the niche around this app.

Rank in Product variants

#406

of 431 active apps

Review count percentile

0th

vs category siblings

Rating percentile

0th

vs category siblings

Years on App Store

6

since 2019

Listing change cadence

What SizeID has changed lately.

Every pricing tweak, tagline refresh, and Shopify-side listing ping. Captured from Ongoing.AI’s per-scrape diff log — the cadence and the content of changes, in one strip.

Listing changes · last 21 days+11shopify_lastmod: 2026-04-28 → 2026-06-16shopify_lastmod: 2026-06-16 → 2026-06-30Jun 13, 26Jun 24, 26Jul 4, 26

Shopify Lastmod · Jul 2

2026-06-16 → 2026-06-30

Shopify Lastmod · Jun 17

2026-04-28 → 2026-06-16

PricingIdentity & listingCadence

Plans

SizeID pricing tiers.

XSMALL

$19.90/month

  • Up to 20 size charts for your products
  • Up to 300 uses of SizeID Advisor
  • Recommendation based on body sizes

SMALL

$44.90/month

  • Up to 50 size charts for your products
  • Up to 1 000 uses of SizeID Advisor
  • Recommendation based on body sizes

MEDIUM

$79.90/month

  • Up to 100 size charts for your products
  • Up to 5 000 uses of SizeID Advisor
  • Recommendation based on body sizes

LARGE

$129.90/month

  • Up to 200 size charts for your products
  • Up to 20 000 uses of SizeID Advisor
  • Recommendation based on body sizes

Capabilities

What SizeID can do.

The 2 capabilities SizeID lists across its category, in Shopify’s own taxonomy. Pulled directly from the App Store listing.

Customization

2
  • Dimensions
  • Size charts

FAQ

SizeID — frequently asked questions.

What is SizeID on Shopify?
SizeID is a Shopify app in the Product variants category. 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.
How much does SizeID cost?
SizeID has 4 paid plans on the Shopify App Store, starting at $19/month and going up to $129.9/month.
Is SizeID free?
No, SizeID is a paid Shopify app. Plans start at $19/month on the Shopify App Store.
When was SizeID launched?
SizeID launched on December 4, 2019 — over 6 years on the Shopify App Store.
Is SizeID Built for Shopify?
SizeID does not currently carry Shopify's Built for Shopify badge. The badge is awarded to apps that meet Shopify's published standards for performance, ease of use, and merchant value — many high-quality apps operate without it.
What are the best SizeID alternatives?
Merchants commonly compare SizeID with Globo Product Options, Variant, Easify Custom Product Options, Color Swatch King, and Infinite Product Options. Each alternative covers a similar use case but differs on pricing model, integration depth, and the specific themes merchants praise in reviews — see the alternatives section above for a side-by-side.

Alternatives

Apps merchants pick instead.

Globo Options

Globo Product Options, Variant

4.90★4,599

Known for: missing-feature

Easify

Easify Custom Product Options

4.90★2,785

Known for: performance

StarApps

Color Swatch King: Variants

4.90★2,677

Known for: billing-issues

ShopPad Inc.

Infinite Product Options

4.70★2,442

Known for: performance

Browse more inAll Product variants apps

Methodology

Where the numbers come from.

Ratings, review counts, pricing tiers, “Built for Shopify”, launch date, and category memberships come from the live Shopify App Store listing — refreshed daily by Ongoing.AI’s crawler. The review-count trajectory is the diff between today’s snapshot and snapshots from 7 and 28 days ago. Topic counts and sentiment come from the review corpus, topic-tagged with Claude. Install footprint is observed via Ongoing.AI’s tech-detection pass against actively-tracked Shopify storefronts. Catalog position is computed at snapshot time against every active app sharing the primary category. Snapshot generated .

Find every brand running SizeID.

Ongoing.AI tracks every Shopify brand’s app stack daily. Pull the full install list, filter by vertical or geography, and catch the moment merchants install — or churn off.

Track SizeID — free Start free

Prefer the source? View SizeID on the Shopify App Store ↗