Rubik Combined Listings and OP Color Swatch Variant Images both let you group separate Shopify products and display them as color options with swatches. Both have a 5.0 rating. Both are Built for Shopify. Both work on product pages and collection pages.
But the apps are built on different philosophies. Rubik focuses on AI-powered setup, fast storefront loading, and per-group visual customization. OP bundles combined listings with variant images in a single app and has a much larger review base.
Disclosure: I am the developer of Rubik Combined Listings. All data in this comparison comes from the Shopify App Store as of March 2026.
In this post
- Quick comparison
- What Rubik Combined Listings does
- What OP Color Swatch does
- Speed comparison
- Pricing comparison
- Where Rubik is stronger (5 areas)
- Where OP is stronger (2 areas)
- Feature-by-feature table
- Which app should you pick?
- Frequently asked questions
- Related reading
Quick comparison
| Rubik Combined Listings | OP Color Swatch | |
|---|---|---|
| Rating | 5.0 | 5.0 |
| Reviews | 20 | 719 |
| Built for Shopify | Yes | Yes |
| Launched | February 2026 | June 2025 |
| Storefront speed | 1,251ms | 2,095ms |
| AI features | Magic Fill + AI visual assistant | Not mentioned on listing |
| Combined listings | Yes | Yes |
| Variant images | No (separate app) | Yes (bundled) |
| Per-group visual settings | Yes | Not mentioned on listing |
| Style presets | 11 product page + 8 collection page | Not mentioned on listing |
| CSS variables | 70+ | Custom CSS |
| Swatch click analytics | Yes (16 properties) | Not mentioned on listing |
| Languages | Built-in translations | 22 languages |
| Pricing model | Flat rate | Plan-based ($11.90-$99.90) |
What Rubik Combined Listings does
Rubik Combined Listings Swatch is a dedicated product grouping app. It connects separate Shopify products and displays them as visual variants with swatches on product pages and collection pages. The app was built around three ideas: AI-powered setup, per-group customization, and fast storefront performance.
Key features include Magic Fill (AI reads product titles and images to auto-fill option values and swatch colors), the AI Visual Settings Assistant (describe swatch changes in plain language), per-group visual settings (each product group gets its own swatch design), 7 image sources, 19 style presets, 70+ CSS variables, Shadow DOM isolation, swatch click analytics with 16 data properties, bulk grouping by title/tags/metafields, categories and subgroups, and accessibility features (ARIA labels, keyboard navigation, 44x44px touch targets).
Rubik stores swatch data in Shopify metafields and metaobjects. No external API calls on the storefront. For a deep dive into how the app works, see combined listings explained.
What OP Color Swatch does
OP: Color Swatch Variant Images is an all-in-one app from FlavorApps that bundles two features: combined listings (product grouping with swatches) and variant images (showing different images per variant within a single product). It launched in June 2025 and has built a strong user base with 719 reviews at a 5.0 rating.
OP supports color swatches, image swatches, and product grouping across product pages and collection pages. The app is Built for Shopify and supports 22 languages. Its pricing ranges from $11.90 to $99.90 per month depending on the plan.
OP’s main selling point is the all-in-one approach. You get combined listings and variant images in one install instead of needing two separate apps. For stores that need both features and prefer a single app, this is a legitimate advantage.
Speed comparison
In side-by-side storefront loading tests, Rubik Combined Listings renders swatches in 1,251ms. OP Color Swatch renders in 2,095ms. That makes Rubik 40% faster.
The speed difference comes from architecture. Rubik stores all swatch data in Shopify metafields and metaobjects. The data arrives with the page HTML. No additional HTTP requests to external servers.
Speed matters for conversion. Google’s research shows that each additional second of load time increases bounce rates by 32%. A 40% speed advantage means your swatches appear before customers lose patience. For more context on how app loading times affect your store, read the full app comparison on CraftShift.
Pricing comparison
Rubik Combined Listings pricing (flat rate)
| Plan | Price | Groups | AI credits/month |
|---|---|---|---|
| Free | $0 | 5 | 100 |
| Starter | $10/mo ($100/yr) | 100 | 1,000 |
| Advanced | $30/mo ($300/yr) | 500 | 5,000 |
| Premium | $50/mo ($500/yr) | 5,000 | 50,000 |
Every feature is available on every plan, including free. Annual billing saves 17%.
OP Color Swatch pricing (plan-based)
| Plan | Price | Key features |
|---|---|---|
| Basic | $11.90/mo | Basic swatches and variant images |
| Standard | $29.90/mo | Additional customization options |
| Professional | $59.90/mo | Full feature set |
| Enterprise | $99.90/mo | Priority support, advanced features |
OP does not have a free plan listed on the Shopify App Store. Pricing starts at $11.90/month, which is $1.90 more than Rubik’s Starter plan that includes 100 groups and AI features.
For a store on any Shopify plan, Rubik’s flat pricing means the bill stays the same. Rubik’s free plan gives you 5 groups with every feature. OP’s entry price is $11.90/month with no free tier.
Where Rubik is stronger
1. Storefront speed (40% faster)
Rubik renders swatches in 1,251ms vs OP’s 2,095ms. The difference is visible on real stores. Rubik’s metafield-based architecture means swatch data loads with the page HTML. No extra round trips to external servers.
For mobile shoppers on slower connections, this gap widens. A 40% speed advantage translates to noticeably faster swatch rendering.
2. AI-powered setup
Rubik’s Magic Fill analyzes product titles and images, then auto-fills option values (“Navy Blue”) and picks matching hex colors (#1B2A4A). Add 8 products to a group and click one button. All 8 get option values and swatch colors without typing.
The AI Visual Settings Assistant lets you describe swatch changes in plain language: “make swatches round and bigger” or “add a blue border to the selected swatch.” The AI applies the changes with a live preview. AI features are not mentioned on OP’s listing.
3. Flat pricing with a free plan
Rubik starts at $0 with a free plan that includes every feature for 5 groups. The paid Starter plan is $10/month for 100 groups. OP starts at $11.90/month with no free tier. For merchants testing the waters, Rubik’s free plan lets you set up 5 product groups with AI, per-group styling, collection page swatches, and analytics before spending anything.
4. Swatch click analytics
Rubik fires an rcl_swatch_clicked event on every click with 16 data properties: option value, product ID, price, swatch type, context (product vs collection page), viewport (desktop vs mobile), position, and more. You can pipe this data into GA4, Facebook Pixel, or any analytics tool. See the full swatch analytics guide.
Swatch click analytics are not mentioned on OP’s listing. Without click data, you cannot see which colors customers prefer, how mobile vs desktop engagement differs, or which swatch positions get the most attention.
5. Visual customization depth
Rubik has 70+ CSS variables, 19 style presets (11 product page + 8 collection page), per-group visual settings, 7 image sources, dual-color swatches (4 split directions), and Shadow DOM isolation. Each product group can have a completely different swatch design. For a full walkthrough, see our swatch customization guide.
OP offers custom CSS for swatch styling. Per-group visual settings, style presets, CSS variables, and Shadow DOM isolation are not mentioned on its listing.
Where OP is stronger
1. All-in-one with variant images
OP bundles combined listings and variant images in a single app. If you need both features, one install covers everything. With Rubik, combined listings and variant images are separate apps (Rubik Combined Listings and Rubik Variant Images). Both Rubik apps share the same rendering engine and work together, but they are two installations.
For merchants who need to show different images per variant within a single product (not just group separate products), OP’s bundle approach is simpler.
2. Larger review base
OP has 719 reviews to Rubik’s 20. Both are 5.0 stars. OP launched 8 months earlier and has had more time to accumulate reviews. A larger review base means more merchants have tested and validated the app in production. For merchants who weigh social proof heavily, OP’s review count is a significant advantage.
Feature-by-feature table
| Feature | Rubik Combined Listings | OP Color Swatch |
|---|---|---|
| Combined listings (product grouping) | Yes | Yes |
| Variant images (per-variant gallery) | No (separate app) | Yes (bundled) |
| Color swatches | Yes (solid + dual-color) | Yes |
| Image swatches | Yes (7 image sources) | Yes |
| Button swatches | Yes | Not mentioned on listing |
| Dropdown | Yes | Not mentioned on listing |
| Collection page swatches | Yes (all plans) | Yes |
| Storefront speed | 1,251ms | 2,095ms |
| AI features | Magic Fill + AI visual assistant | Not mentioned on listing |
| Bulk grouping | Title, tags, metafields, product types | Not mentioned on listing |
| Per-group visual settings | Yes | Not mentioned on listing |
| Style presets | 19 (11 + 8) | Not mentioned on listing |
| CSS variables | 70+ | Custom CSS |
| Shadow DOM | Yes | Not mentioned on listing |
| Swatch click analytics | Yes (16 properties) | Not mentioned on listing |
| Categories/subgroups | Yes | Not mentioned on listing |
| Accessibility (ARIA) | Yes | Not mentioned on listing |
| Languages | Built-in translations | 22 languages |
| Live admin preview | Yes (actual products) | Not mentioned on listing |
| Free plan | Yes (5 groups, all features) | Not listed |
| Entry price | $10/mo (100 groups) | $11.90/mo |
| Top plan | $50/mo (5,000 groups) | $99.90/mo |
| Pricing model | Flat rate | Plan-based tiers |
| Built for Shopify | Yes | Yes |
| Rating | 5.0 (20 reviews) | 5.0 (719 reviews) |
“Not mentioned on listing” means the feature is not described on the app’s Shopify App Store page. The app may still support it.
Which app should you pick?
Rubik Combined Listings is the better choice for stores focused on product grouping. AI-powered setup saves hours of manual work. 40% faster storefront rendering means customers see swatches sooner. Flat pricing at $10/month keeps costs predictable. Per-group visual settings let each product category have the right swatch design. And swatch click analytics give you data no other combined listings app provides.
OP is a reasonable option if you specifically need combined listings and variant images in a single app and want to avoid installing two separate apps.
Pick Rubik Combined Listings if:
- You want the fastest storefront loading (1,251ms vs 2,095ms)
- You want AI to auto-fill option values and swatch colors
- You need different swatch designs for different product groups
- You want to track swatch clicks in Google Analytics
- You want a free plan to test with before paying
- You want flat pricing ($10/mo for 100 groups)
Pick OP Color Swatch if:
- You need combined listings and variant images in a single app
- You prefer an app with a larger review base (719 reviews)
If you need variant images alongside combined listings and prefer the Rubik ecosystem, install Rubik Variant Images alongside Rubik Combined Listings. The two apps share the same rendering engine and work together. Read our variant images FAQ for details.
Video walkthrough
See Rubik Combined Listings in action:
Frequently asked questions
Can I use Rubik Combined Listings and OP Color Swatch at the same time?
No. Running two combined listings apps will cause conflicts on the storefront. Both inject swatch components into the product page. Pick one.
Which app loads faster, Rubik or OP?
Rubik. In storefront testing, Rubik renders swatches in 1,251ms vs OP’s 2,095ms. Rubik is 40% faster because it stores swatch data in Shopify metafields and metaobjects, with no external API calls.
Can I switch from OP to Rubik?
Yes. Product groups are stored per-app, so switching means recreating your groups. Rubik’s bulk grouping can detect and recreate groups from product titles, tags, or metafields. Magic Fill then auto-fills option values and swatch colors. The process is fast for most catalogs.
What if I need variant images too?
Combined listings and variant images are different features. Combined listings group separate products. Variant images show different photos per variant within a single product. OP bundles both in one app. With Rubik, you install Rubik Variant Images as a separate app. Both Rubik apps share the same rendering engine and work together.
Is Rubik really cheaper than OP?
Yes. Rubik’s Starter plan is $10/month for 100 groups with all features. OP starts at $11.90/month. Rubik also has a free plan with 5 groups and every feature included. OP does not list a free plan. At higher tiers, Rubik’s Premium ($50/month for 5,000 groups) costs half of OP’s top plan ($99.90/month).
Do both apps work with all Shopify themes?
Both support a wide range of themes. Rubik has dedicated native code for 350+ themes including Dawn, all Horizon themes (Atelier, Fabric, Dwell, Heritage, Ritual, Savor, Tinker, Vessel, Pitch), and 7 page builders. OP supports Shopify themes broadly with its Built for Shopify status.
Related reading
- Rubik Combined Listings vs Grouptify: which app should you pick?
- Rubik Combined Listings vs SA Variant Swatch: full comparison
- Shopify combined listings explained: separate products, one page
- Shopify variant image apps compared: speed, features, and pricing (CraftShift)
- Shopify variant images FAQ (Rubik Variant Images)
