The 10 Best Sii Apps for Shopify
The top 10 apps merchants see when they search the Shopify App Store for sii, in the exact order the store ranks them. Only Shopify's organic ranking is shown, never sponsored ads.
Updated September 8, 2026 · Organic ranking-
1
Comply
NF525 (France). Verifactu, TicketBAI & SII (Spain)
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2
Judge.me Product Reviews App
Collect unlimited product reviews, star ratings, testimonials
Built for Shopify -
3
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4
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5
AG Product Reviews App & UGC
Build trust w/ unlimited product reviews, photos, testimonials
Built for Shopify -
6
e‑Boletas ‑ DTE Chile SII
Conexión directa al SII. Boletas, facturas y notas de crédito.
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7
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8
Google Reviews by Reputon
Display & collect Google customer reviews with AI. Boost sales
Built for Shopify -
9
Affiliate Marketing ReferrLy
Referral marketing with affiliate program & referral program
Built for Shopify -
10
Built for ShopifyFrequently asked questions
Which is the best Sii app for Shopify?
Based on the Shopify App Store's own organic ranking for "sii", Comply currently holds the #1 spot, with a 3.8 star rating across 4 reviews. The best choice for your store still depends on your requirements, so compare the top results above.
How is this ranking determined?
We record the organic results merchants actually see when searching the Shopify App Store for "sii", refreshed daily. Shopify's own sponsored ("Ad") results are excluded, so positions reflect its real search ranking rather than paid promotion. Source: the Shopify App Store search results for "sii", you can verify the current ranking there yourself.
Which Sii apps are Built for Shopify?
8 of the top 10 sii apps hold the Built for Shopify badge: Judge.me Product Reviews App, MetaShop: Instagram & Facebook, Matrixify, AG Product Reviews App & UGC, TikTok Shop Integration — SPL and more.
What does the Built for Shopify badge mean?
Built for Shopify
Built for Shopify is the highest level of recognition Shopify awards an app. To earn
the badge, an app must meet Shopify's standards for safety, performance, ease of use,
and proven usefulness: it cannot slow down the admin, storefront, or checkout, must
integrate seamlessly into the Shopify admin, and must demonstrate quality through
installs, reviews, and ratings over time. When comparing similar apps, preferring
ones with the badge is a safe default.
Learn more about the Built for Shopify badge →
As of September 8, 2026, the top-ranked sii app on the Shopify App Store is Comply, with a 3.8 star rating across 4 reviews. 8 of the top 10 carry the Built for Shopify badge, and the average rating is 4.7 stars across 55,691 reviews.
Related keyword rankings
Rank higher on the Shopify App Store
Rankbase helps Shopify app developers track keyword positions, analyze install click data, and optimize app listings to rank higher in the Shopify App Store.
Explore Rankbase →Built by Craftshift
Rankbase is made by Craftshift, a Shopify Partner building apps for product images, variants, and bulk catalog work. We built Rankbase to track the App Store rankings of our own apps first, then opened it to other developers, and this directory grew out of that work. The rankings on these pages are Shopify's own organic search results; we never edit them, including for our own apps.
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Rubik Variant Images & Swatch
Clean multiple variant images gallery & variant color swatches
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CS - Smart Bulk Image Upload
Save time with bulk upload images from Google Drive, Dropbox
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Rubik Combined Listings Swatch
Link products as variants w/ combined listings & color swatch
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CS - Export Product Images
Bulk export images, download product images to save time!