Boost conversions and cut returns with SmartSize’s size charts and size recommender. Launch in minutes and give shoppers instant size advice. No extra charges.
Free plan available, paid plans from $9/month. Prices are the published USD list prices on the Shopify App Store and exclude usage charges.
| Plan | Price |
|---|---|
| Free | Free |
| Starter | $9/month |
| Growth | $12/month |
| Pro 100 | $19/month |
The top plan is 2.1× the entry plan, a normal spread — the tiers are most likely gated on volume rather than on features.
99% of ratings are 4 or 5 stars, and 1 merchant has left a 1-star review.
Across the 70 most recent reviews, the merchants writing them were mostly in United States, United Kingdom, Australia. 6% had been running the app for a year or more before reviewing it. The developer replied to 83% of them.
At $9/mo to start, Smart Size Chart & Size Guide is priced around the category — the median entry price across 8 apps in this category is $6.99/mo.
Aggregated from 62 reviews with written feedback — we analyse the sentiment behind the ratings, we don't reprint reviews.
From our daily App Store rank tracking and review history — signals a static listing doesn't show.
Measured against the 99 reviewed apps in Product comparison, where it currently sits at #3 of 225 listings.
| Smart Size Chart & Size Guide | Product comparison median | |
|---|---|---|
| Rating | 4.9 | 5 |
| Reviews | 144 | 5 |
That is 29× the review volume of the typical app in this category — the rating is carrying a lot more evidence than most.
The most-reviewed apps in Product comparison, with their current rating and entry price.
| App | Rating | Reviews | Price from | Compare |
|---|---|---|---|---|
| Kiwi Size Chart & Recommender | 4.8 | 1,117 | $7.99/mo | compare |
| MP Size Chart & Size Guide | 5 | 871 | $6.95/mo | compare |
| ESC Size Charts | 4 | 135 | $4.99/mo | compare |
| BF Size Chart & Size Guide | 4.7 | 128 | $5.99/mo | compare |
| W3 Product Accessories | 4.7 | 114 | $6.99/mo | compare |
| CSC: Size Chart & Size Guide | 5 | 92 | $6.99/mo | compare |
| Jotly Size Chart & Size Guide | 5 | 75 | $6.99/mo | compare |
| Tably Comparison & Spec Tables | 4.9 | 73 | $6.99/mo | compare |
Built by SmartSize, on the App Store since January 2022.








Smart Size Chart & Size Guide has a free plan, and paid plans start at $9 per month. The free tier is normally capped on volume, so check the limit against what your store does today.
Smart Size Chart & Size Guide publishes 4 plans: Free (free), Starter at $9/month, Growth at $12/month, Pro 100 at $19/month. These are list prices from the Shopify App Store and exclude any usage-based charges.
Smart Size Chart & Size Guide holds 4.9 out of 5 from 144 merchant reviews, with 99% of them at 4 or 5 stars. That is enough volume for the rating to mean something; roughly 14% of apps on the store reach 100 reviews.
The most-reviewed alternatives in Product comparison are Kiwi Size Chart & Recommender, MP Size Chart & Size Guide and ESC Size Charts. The comparison table above shows each one's rating, review count and entry price.
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