This guide compares the 10 best size chart apps in the Shopify App Store in 2026. We rank them by features, pricing, and reviews. We also look at which apps use AI to build and translate size charts.
Around 1 in 4 online apparel orders is returned. The most common reason is the same every year: the item did not fit. A good size chart app is the cheapest way to fix this. It answers the question “what size should I buy?” before the shopper pays. This guide compares every serious size chart app on the Shopify App Store, so you can pick the right one for your store.
We are SmartSize, and one of the apps in this list is ours. We did two things to keep this comparison fair. First, we ranked every app — including ours — on the same public data. Our exact method is below. Second, we added an AI tools section. AI is changing how merchants build size charts in 2026, and the time it saves is what store owners ask us about most.
How did we rank these size chart apps?
We gave each app one combined score, built from three public signals:
- 45% — adjusted Shopify rating. We use a Bayesian adjustment. It pulls very small review counts toward the average. This way, a 5.0 rating from 30 reviews does not automatically beat a 4.8 rating from 1,000 reviews.
- 35% — number of reviews (log-scaled). More reviews mean more proof. The log scale means the step from 30 to 90 reviews matters a lot, while the step from 900 to 1,000 matters less.
- 20% — how recent the reviews are. Recent reviews show the app is still supported and still works on current Shopify themes. Apps with fresh 2026 reviews score higher than apps that rely on old reviews.
We used only public Shopify App Store data: listing pages, public pricing, and public review pages. We did not use agency blogs, affiliate lists, or review sites. We checked the data on June 6, 2026. Public review counts change from day to day, so treat each number as a snapshot from that date.
Disclosure: SmartSize publishes this article. Our ranking uses public review data, and by that measure we place 3rd — behind two older apps with much longer review histories. We kept ourselves in that real position. We also believe our product now leads the category after a full 2026 rebuild. We explain that case openly below, so you can judge it yourself.
The 10 best Shopify size chart apps in 2026
Here is the full ranking. Every number below comes from the app’s public Shopify listing on June 6, 2026.
| # | App | Built for Shopify | Rating (reviews) | Price range | Free plan | Unlimited charts from | AI chart tools |
|---|---|---|---|---|---|---|---|
| 1 | MP Size Chart & Size Guide | ✓ | 5.0 (839) | Free–$24.95 | ✓ | $12.95 | — |
| 2 | Kiwi Size Chart & Recommender | — | 4.8 (1,039) | Free–$24.49 | ✓ | See note | Auto-translate |
| 3 | Smart Size Chart & Fit Finder | ✓ | 4.9 (128) | Free–$19 | ✓ | $12 | Image→table + AI translate |
| 4 | TablePress Size Chart & Guide | ✓ | 4.9 (98) | Free–$9.99 | ✓ | $9.99 | — |
| 5 | Jotly Size Chart & Size Guide | ✓ | 5.0 (61) | Free–$24.99 | ✓ | $6.99 | — |
| 6 | BF Size Chart & Size Guide | ✓ | 4.8 (124) | Free–$11.99 | ✓ | $11.99 | — |
| 7 | CSC: Size Chart & Size Guide | ✓ | 4.8 (90) | Free–$29.99 | ✓ | $6.99 | AI chart generation |
| 8 | GA: Size Chart & Size Guide | — | 4.8 (74) | Free–$24 | ✓ | Not listed | — |
| 9 | Pify Size Charts & Size Guides | ✓ | 5.0 (30) | Free | ✓ | Not listed | — |
| 10 | ESC Size Charts | ✓ | 4.5 (124) | Free–$4.99 | ✓ | $4.99 | — |
In the table, ✓ means yes and — means no or not publicly listed.
Built for Shopify is Shopify’s highest app-quality badge. It means the app meets Shopify’s top standards for speed, design, and admin integration. Eight of the ten apps have it. The two without it are Kiwi and GA.
In the AI chart tools column, “—” means the listing does not publicly describe an AI tool for building or translating charts. Some of these apps offer AI size recommenders — a separate feature that suggests a size to the shopper. This guide focuses on the charts themselves, so we do not score recommenders here.
Note on Kiwi: Kiwi has a free plan and paid tiers up to $24.49/month. Its live pricing widget changed while we collected data, so we cannot state its cheapest unlimited-chart tier with full confidence. Confirm the chart limit on its listing before you buy.
Why is SmartSize the strongest product, even at number 3?
Our ranking uses public review data, and that data rewards age. MP and Kiwi collected their reviews over many years. SmartSize did not. We rebuilt the entire app from the ground up in early 2026, and merged our size chart and sizing tools into one new product.
That rebuild explains the numbers. SmartSize already holds a 4.9 rating, but its 128 reviews cover months on the new app, not years. The rating shows the quality of the product today. The review count has not caught up yet.
On the product itself, SmartSize is now the strongest size chart app in the store. Two things drive that:
- An editor that works like Shopify’s own theme editor. SmartSize’s chart editor has a structure panel on the left, a live preview in the middle, and a settings panel on the right. If you have edited a Shopify theme, you already know how to use it. There is no new interface to learn.
- AI that removes the manual work. Upload a photo of a size chart, and AI builds the table. Translate it into every market with one action. No other app in this list does both.
You do not have to rely on our opinion. The ranking above is honest, and the older apps earned their review history. But if you choose based on the product you will use every day — not on the review count — SmartSize is built to be the best choice.
→ See the SmartSize size chart builder live on our demo store
Which size chart apps use AI to make charts easier?
This is the part of the market that is changing fastest in 2026. Most size chart apps still build charts the manual way: pick a template, type in the numbers, and translate each language by hand. A smaller group now uses AI to remove that work.
For size charts, two AI tools save the most time:
- AI image-to-table import. You upload a photo or screenshot of an existing size chart. AI reads the rows and columns and turns them into an editable table. You do not retype anything.
- AI translation. AI translates the finished chart into every language your store sells in. Each shopper reads the sizing in their own language, and you do not write each version yourself.
Of the 10 apps in this list, only three describe real AI chart tools:
| App | AI image → table | AI translation | AI chart generation |
|---|---|---|---|
| SmartSize | Yes | Yes | — |
| CSC Size Chart | — | — | Yes (from product data) |
| Kiwi Size Chart | Partial (image import) | Yes (auto-translate) | — |
| MP, TablePress, Jotly, BF, GA, Pify, ESC | — | — | — |
SmartSize is the only app here that offers both AI import and AI translation. It is built to remove the manual work from size charts, from start to finish:
- AI table upload. Upload an image of an existing size chart, and SmartSize’s AI extracts the rows and columns into an editable table. A chat panel lets you refine the table in plain words — “merge these two rows,” “switch to inches,” “add an XXL.” A Revert button returns to the original at any time.
- AI translations. Translate any chart into every published store language with one action. When you change the original chart, SmartSize marks the translations that are now out of date, so you re-sync only those. Manual edits you make are protected and will not be overwritten.
Both tools are included from the $9 Starter plan. You do not need the top tier to get them.
CSC is the next strongest option here. Its AI builds a first chart from your product data, which saves real time for large catalogs. Kiwi lets you import charts from images and auto-translate into up to 22 languages on its higher tiers. The other seven apps in this list build and translate charts manually.
If the slow part of size charts for you is typing them in and translating them, AI chart tools are the feature to compare first — and that is where SmartSize is built to lead.
Every Shopify size chart app, reviewed
Below is a full review of each app, in ranked order. Each entry covers what the app does, its pricing, its AI chart tools, who it suits best, and one honest warning from its public reviews.
1. MP Size Chart & Size Guide
Best overall on current public evidence. Developer: Shopplaza. Rating: 5.0 from 839 reviews. Pricing: Free to install; Growth $6.95/month; Pro $12.95/month; Advanced $24.95/month. Unlimited charts: $12.95/month on Pro.
MP combines a near-perfect rating with the second-largest review base in this list. Its public reviews are very current, with repeated feedback from February to May 2026 on the first page. The chart feature set is broad: more than 30 templates, CSV import for bulk uploads, multi-language support, and analytics. Merchants often praise the fast, helpful support; one review calls the team “off the charts helpful.”
AI chart tools: Not listed. MP markets AI for size recommendations, not for building or translating charts. Its charts are built from templates and CSV imports.
Best for: Stores that want the safest, most proven all-round size chart app.
Warning: The pricing is not simple. Unlimited charts start on a paid tier, and the heavier features sit on higher plans.
View MP Size Chart on the Shopify App Store
2. Kiwi Size Chart & Recommender
The app with the most reviews in the category. Developer: Staytuned. Rating: 4.8 from 1,039 reviews. Pricing: Free; Premium $6.99/month; Plus $12.49/month; Ultimate $24.49/month. Unlimited charts: available on higher tiers (see note above).
No other app here matches Kiwi’s review volume. With over 1,000 reviews and active feedback from March to May 2026, it is the most review-proven app in the category. It lets you import charts from images, product descriptions, or CSV files. It can auto-translate charts into up to 22 languages on the Ultimate tier. One merchant calls its support “second to none.”
AI chart tools: Some. Auto-translate (up to 22 languages) and image-based import are available on higher tiers. The listing does not confirm that the translation is AI-driven.
Best for: Stores that value review history and install confidence above everything else.
Warning: Kiwi’s public reviews include sharper complaints than MP’s. One visible complaint says the app would not export the data created in it. If moving your data out matters to you, confirm it before you commit.
View Kiwi Size Chart on the Shopify App Store
3. SmartSize — Smart Size Chart & Fit Finder
The most focused modern chart builder, with the strongest AI chart tools in this list. Developer: SmartSize. Rating: 4.9 from 128 reviews. Pricing: Free (2 charts); Starter $9/month (10 charts); Growth $12/month (unlimited charts). Unlimited charts: $12/month on Growth.
SmartSize was rebuilt from the ground up in early 2026. That is why its review count is lower than the two older leaders while its rating stays high. The new app ships templates by audience — men, women, girls, boys, and pets — with multiple tabs, callouts (“Runs small, size up”), fit scales, unit conversion (cm/in, kg/lb), and international size mapping. The chart editor works like Shopify’s own theme editor, with a structure panel, a live preview, and a settings panel. It feels familiar from the first click, and there is nothing new to learn. Recent reviews praise how fast the setup is and how flexible the charts are. Its main advantage is the AI built into the chart workflow.
AI chart tools: The strongest in this list, and they are included from the $9 Starter plan:
- AI table upload — upload an image of an existing size chart, and AI turns it into an editable table. Refine it in plain words in a chat panel (“switch to inches,” “add an XXL”).
- AI translations — translate any chart into every published store language with one action. When you edit the original, re-sync only the parts that changed.
Best for: Most apparel stores — especially stores that want the fastest setup, an editor they already know from Shopify, and AI that builds and translates charts for them.
Warning: The review count (128) is smaller than MP’s or Kiwi’s. That is a result of the 2026 rebuild, not the product. The rating is higher than most of the field, and the recent reviews are active.
View SmartSize on the Shopify App Store
4. TablePress Size Chart & Guide
Best value if you need tables in general, not only size charts. Developer: Identixweb. Rating: 4.9 from 98 reviews. Pricing: Free (1 table); Basic $4.99/month; Advance $7.99/month; Unlimited Tables $9.99/month. Unlimited charts: $9.99/month (as unlimited tables).
TablePress is a no-code table builder. It handles size charts, comparison tables, specification tables, and pricing tables in one tool. The rating is strong and the reviews stay active in 2026 — one says support helped “even though it was Sunday.” We treat its Unlimited Tables tier as the practical equal of unlimited size charts, because the product clearly builds size chart tables.
AI chart tools: Not listed. It has a 1-click table generator, but the listing describes no AI import and no AI translation.
Best for: Stores that want size charts as part of a wider table setup, at a low price.
Warning: It is a general table tool, not a sizing specialist, and its interface is listed in English only.
View TablePress on the Shopify App Store
5. Jotly Size Chart & Size Guide
The strongest newer app. Developer: Jotly Apps. Rating: 5.0 from 61 reviews. Pricing: Free; Essentials $6.99/month; Pro $14.99/month; Analytics $24.99/month. Unlimited charts: $6.99/month on Essentials.
Jotly’s profile is unusually clean: a perfect public rating, a real review base, and fresh 2026 feedback. The app is lightweight and easy to match to your brand, with 19 customizable templates, multi-language support, import/export, and bulk update tools. One merchant calls it “worth every penny.” It looks like a fast-growing app, not an old app that relies on past reviews.
AI chart tools: Not listed. Charts and translations are built manually.
Best for: Stores that want a polished, affordable size guide without choosing a large, older app.
Warning: 61 reviews is strong for a young app, but it is not yet the level of proof that MP or Kiwi have.
View Jotly Size Chart on the Shopify App Store
6. BF Size Chart & Size Guide
A long-established, simple size chart app. Developer: Relentless Apps. Rating: 4.8 from 124 reviews. Pricing: Basic Free; Premium $5.99/month; Unlimited $11.99/month. Unlimited charts: $11.99/month.
BF has the review history many merchants value: high volume, a high rating, and a clear focus on simple, customizable size charts. The reviews spread across 2025 and 2026, with praise for value and support; a recent one reads “works really well and easy to use.” It includes cm/inch unit conversion, and import/export on the Unlimited tier.
AI chart tools: Not listed. BF is a manual chart builder.
Best for: Stores that want reliable, simple size charts at a fair price.
Warning: Some public reviews mention earlier problems with chart reuse and themes. Developer replies point to fixes. Its review mix is less clean than Jotly’s or SmartSize’s.
View BF Size Chart on the Shopify App Store
7. CSC: Size Chart & Size Guide
The one competitor with real AI chart building. Developer: TaskHusky. Rating: 4.8 from 90 reviews. Pricing: Free; Grow $6.99/month; Advanced $14.99/month; Plus $29.99/month. Unlimited charts: $6.99/month on Grow.
CSC pairs a credible review base with a useful feature mix. Its standout feature is one-click chart generation: the listing says “AI builds charts from your product data.” That means you do not start from an empty chart, which saves time for large catalogs. It also offers done-for-you setup, bulk tools, and translations. Public reviews are active in early 2026 and often praise support; one says CSC “does exactly what it promises.”
AI chart tools: Yes — AI chart generation from product data. The listing does not say whether the translation is AI-based.
Best for: Stores with big catalogs that want AI to draft charts from existing product data.
Warning: The price rises quickly on higher tiers — the Plus plan is $29.99/month.
View CSC Size Chart on the Shopify App Store
8. GA: Size Chart & Size Guide
Strong support, but unclear chart pricing. Developer: GoodApps. Rating: 4.8 from 74 reviews. Pricing: Free to install; Growth $6/month; Growth 2 $12/month; Growth 3 $24/month. Unlimited charts: not clearly listed.
GA has a respectable review base and current feedback — one merchant says support “got it solved under 10 minutes.” It offers size charts and comparison tables with pre-designed templates. The listing notes it “works with Open AI,” but it does not explain what that does for chart building.
AI chart tools: Not clearly listed. The OpenAI mention is not tied to a specific chart-building feature, and the interface is listed in English only.
Best for: Stores that want size charts plus comparison tables, and value fast support.
Warning: Its paid tiers are priced by order volume and mention “unlimited campaigns,” not unlimited size charts. One older review reports a mismatch between in-app pricing and listing pricing. Confirm the chart limit before you buy.
View GA Size Chart on the Shopify App Store
9. Pify Size Charts & Size Guides
A promising free app that is still building its review base. Developer: pifyapp. Rating: 5.0 from 30 reviews. Pricing: Free. Unlimited charts: not clearly listed.
Pify shows a perfect rating and fresh reviews from March to May 2026. The app launched in May 2025, so most of its history is recent by definition, and it is clearly growing. One merchant says it has “all the right features.” It includes pre-built templates and a unit converter for metric and imperial units.
AI chart tools: Not listed. Charts are built from templates and edited manually.
Best for: Stores on a tight budget that want a clean free size chart.
Warning: 30 reviews is promising but not conclusive. The interface is listed in English only, and the public page does not state a chart limit. Ask the developer if you need a guarantee on capacity.
View Pify Size Charts on the Shopify App Store
10. ESC Size Charts
The cheapest serious option for unlimited charts. Developer: Eastside Co. Rating: 4.5 from 124 reviews. Pricing: Basic Free; Premium $4.99/month. Unlimited charts: $4.99/month.
ESC remains one of the cheapest publicly listed unlimited-chart options with a real review history. At $4.99/month for unlimited charts, the price is very low. It uses a drag-and-drop editor and lets you assign charts by tag, collection, product, vendor, or type. One recent positive review says ESC “makes handling sizing guides easy and fast.”
AI chart tools: Not listed. ESC is a manual drag-and-drop builder.
Best for: Price-first stores that want unlimited charts for under $5/month.
Warning: Its public reviews are more mixed than the leaders’, and its recent review activity is slower than the most active apps of 2026. Another review on the same page reports bugs and import/export problems.
View ESC Size Charts on the Shopify App Store
Which Shopify size chart app should you choose?
For most apparel stores, the answer is SmartSize. Whatever you optimize for, it is the strongest pick:
- Fastest to set up — upload a photo and AI builds the chart.
- Best for many markets — one action translates every chart into every store language.
- Easiest to learn — the editor works like Shopify’s own theme editor.
- Fair price at scale — unlimited charts for $12/month, with the AI tools from $9.
There are only two reasons to pick another app, and both are narrow. If review history is the only thing you care about, MP and Kiwi have collected more of it — but that reflects their age, not a better product. If the lowest monthly price is the only thing you care about, ESC offers a basic manual chart for $4.99/month. For nearly every store, once you count the time AI saves and how little there is to learn, SmartSize is the best choice — and the one we would install today.
Frequently asked questions
What is the best Shopify size chart app in 2026?
It depends on whether you value review history or the product itself. By raw public review data, MP Size Chart & Size Guide (5.0, 839 reviews) and Kiwi (4.8, 1,039 reviews) lead, because both have collected reviews for years. By product capability, SmartSize is the strongest choice in 2026. It was rebuilt from the ground up, its editor works like Shopify’s own theme editor, and it is the only app that both imports a chart from an image with AI and translates it into every language. Its 4.9 rating already reflects the new product; the review count is still catching up.
Which Shopify size chart app has the best AI tools?
SmartSize has the strongest AI chart tools in this list. It is the only app that offers both AI image-to-table import — upload a photo of a size chart and AI turns it into an editable table — and AI translation of charts into every store language. CSC offers AI chart generation from product data. Kiwi offers auto-translate on higher tiers.
Can AI create a size chart from an image?
Yes. SmartSize’s AI table upload lets you upload an image or screenshot of an existing size chart. AI extracts the rows and columns into an editable table. You can then refine it in plain words, such as “switch to inches” or “add an XXL.” CSC can also generate a first chart from your product data.
Can a Shopify size chart app translate charts automatically?
Yes. SmartSize translates any chart into every published store language with AI. When you edit the original, it marks the translations that need a re-sync. Kiwi offers auto-translate into up to 22 languages on its Ultimate tier. Most other apps in this list translate charts manually.
What is the cheapest Shopify size chart app with unlimited charts?
ESC Size Charts is the cheapest publicly listed unlimited-chart option at $4.99/month. Jotly ($6.99/month) and CSC ($6.99/month) are the next cheapest. SmartSize offers unlimited charts at $12/month, and MP at $12.95/month.
Do I need an app for size charts on Shopify?
Most Shopify themes do not include a real size chart system. An app is the fastest way to add one without editing theme code. A size chart app lets you build branded, multi-language charts, place a button on product pages, and update sizing in one place. If you manage many charts or sell in several languages, an app with AI import and AI translation saves the most time.
Build and translate your size charts in minutes
A size chart app is one of the highest-return tools you can add to an apparel store. The right app removes the guessing that causes returns — and the best apps now also remove the manual work of building the charts.
That is the gap SmartSize was built to close. You upload a photo of your existing size chart, and AI turns it into a clean, editable table. You translate it into every market you sell in with one action. No retyping, no copying numbers, no writing each language by hand. These AI tools start on the $9 Starter plan.
SmartSize is Built for Shopify — Shopify’s top quality badge. You can install it directly from the Shopify App Store, with no theme code and no developer.
Try SmartSize for freeWant to go deeper? Read our Shopify size chart builder walkthrough, or learn how to convert a size chart image into a table with AI.
Questions? Write to us at [email protected].
— Philip, co-founder of SmartSize
