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1. Listing metadata
Field-level data| K | OPTIS Product Options, Variant | |
|---|---|---|
| Tagline | ||
| Description | ||
| Screenshots | images | images |
| Languages | ||
| Platforms | ||
| Developer |
| K | OPTIS Product Options, Variant | |
|---|---|---|
| Tagline | ||
| Description | ||
| Screenshots | images | images |
| Languages | ||
| Platforms | ||
| Developer |
Personalize products w/ infinite options, text, swatches, file uploads, price addon & live preview
| Metric | K:PDF Viewer, Flipbook+Catalog | OPTIS Product Options, Variant |
|---|---|---|
| Rating | ★ 5.0 ★ | 4.9 ★ |
| Total reviews | 5 | ★ 2.2k |
| Free plan | Yes | Yes |
| Pricing | Free to install | Free plan available |
| Built for Shopify | — | ★ Yes |
| Pricing tiers | 2 tiers | ★ 4 tiers |
| Listed features | 5 | 5 |
| Featured placements | — | 1 |
| Languages | 4 supported | 22 supported |
| Listed since | Oct 2024 | Dec 2021 |
K:PDF Viewer, Flipbook+Catalog and OPTIS Product Options, Variant are evenly matched on rating (5.0★ vs 4.9★) — the differentiator comes down to pricing fit, feature breadth, and which app's interaction pattern suits your team's workflow. Pricing entry tiers: K:PDF Viewer, Flipbook+Catalog at Free to install, OPTIS Product Options, Variant at Free plan available. Check each app's tier structure for the capacity limits you actually need before deciding — the headline number is the same shape, but the gating shape per tier (apps, orders, integrations) varies. OPTIS Product Options, Variant has the larger user base (2,207 reviews vs 5), which usually maps to broader integration coverage, faster bug-fix cadence, and a deeper bench of community workflow patterns. K:PDF Viewer, Flipbook+Catalog's smaller cohort can be an advantage for niche workflows where the bigger app has accumulated bloat. Recommended evaluation path: install both apps' free tiers (where available) and run them in parallel on a small cohort of orders for 7-14 days before committing. The data tables below show the per-feature breakdown — for most merchants the deciding factor will be a single integration or workflow detail that's hard to compare from listing pages alone. This verdict is generated from the live marketplace data on this page — rating, review count, pricing tier, and category position all refresh from the canonical Shopify App Store listing every 24 hours. AppRanks does not accept payment to influence comparison outcomes; the methodology is documented on the About page and applies identically to every pair on the site.
Read each app's audit: K:PDF Viewer, Flipbook+Catalog audit • OPTIS Product Options, Variant audit
| Listed |
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| Last updated | — | — |
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| Keyword | K | OPTIS Product Options, Variant |
|---|---|---|
| filing | Not ranked | #2 |
| product options variant | Not ranked | #2 |
| file | Not ranked | #3 |
Not featured in any section recently.
Both K:PDF Viewer, Flipbook+Catalog and OPTIS Product Options, Variant offer paid plans only. K:PDF Viewer, Flipbook+Catalog starts at Free to install; OPTIS Product Options, Variant starts at Free plan available. Compare the per-tier features in the Pricing section above before committing.
K:PDF Viewer, Flipbook+Catalog (5.0★, 5 reviews) and OPTIS Product Options, Variant (4.9★, 2,207 reviews) are essentially tied on rating. Look at review velocity and individual reviewer quotes — both visible on each app's detail page — to differentiate.
It depends on what you're optimizing for. K:PDF Viewer, Flipbook+Catalog fits better if you prioritize rating consistency; OPTIS Product Options, Variant is the call if you need the larger user base. Read both apps' detail pages on AppRanks for the full feature breakdown, install counts, and recent listing changes.
Both apps are one-click installs from the Shopify App Store marketplace. OPTIS Product Options, Variant has more onboarding documentation maturity (2,207 reviews vs 5), which usually translates to better-tested setup wizards and quicker time-to-value. AppRanks doesn't measure setup time directly — read the recent reviews on each app's detail page for merchant-reported install experience.
K:PDF Viewer, Flipbook+Catalog typically suits early-stage and growth-mode stores based on its review-base composition (5 reviews). OPTIS Product Options, Variant aligns more with early-stage and growth-mode stores (2,207 reviews). Larger review bases generally mean the app has been load-tested at scale — relevant if you're processing high order volume or handling enterprise compliance requirements.
Migration support varies by app and category. K:PDF Viewer, Flipbook+Catalog and OPTIS Product Options, Variant both publish their export options on their marketplace listing pages (or in their support docs); some apps offer one-click import from competitors, others require CSV. The fastest check: search "import from K:PDF Viewer, Flipbook+Catalog" in each app's help center. AppRanks does not track migration tooling directly — this is a category-specific capability worth verifying before commitment.
