Side-by-side comparison · 24 data points
Checkout rules and checkout to power checkout customizer an boost your checkout conversion rate.
| Blockify Checkout Customizer | QuantityLock ‑ Product Limits | |
|---|---|---|
| Tagline | ||
| Description | ||
| Screenshots | images | images |
| Languages | ||
| Platforms | ||
| Developer | ||
| Listed | ||
| Last updated | — | — |
Take charge of your order limits with QuantityLock, the simple way to set product quantity limits
| Metric | Blockify Checkout Customizer | QuantityLock ‑ Product Limits |
|---|---|---|
| Rating | 4.9 ★ | ★ 5.0 ★ |
| Total reviews | ★ 257 | 1 |
| Free plan | Yes | Yes |
| Pricing | Free plan available | Free plan available |
| Built for Shopify | ★ Yes | — |
| Pricing tiers | ★ 4 tiers | 2 tiers |
| Listed features | ★ 5 | 3 |
| Languages | 1 supported | 1 supported |
| Listed since | Aug 2024 | Oct 2025 |
Blockify Checkout Customizer and QuantityLock ‑ Product Limits are evenly matched on rating (4.9★ vs 5.0★) — the differentiator comes down to pricing fit, feature breadth, and which app's interaction pattern suits your team's workflow. Pricing entry tiers: Blockify Checkout Customizer at Free plan available, QuantityLock ‑ Product Limits 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. Blockify Checkout Customizer has the larger user base (257 reviews vs 1), which usually maps to broader integration coverage, faster bug-fix cadence, and a deeper bench of community workflow patterns. QuantityLock ‑ Product Limits'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: Blockify Checkout Customizer audit • QuantityLock ‑ Product Limits audit
| Keyword | Blockify Checkout Customizer | QuantityLock ‑ Product Limits |
|---|---|---|
| customer support tool | #6 | Not ranked |
| customer service ai | #6 | Not ranked |
| customer engagement chatbot | #7 | Not ranked |
Both Blockify Checkout Customizer and QuantityLock ‑ Product Limits offer paid plans only. Blockify Checkout Customizer starts at Free plan available; QuantityLock ‑ Product Limits starts at Free plan available. Compare the per-tier features in the Pricing section above before committing.
Blockify Checkout Customizer (4.9★, 257 reviews) and QuantityLock ‑ Product Limits (5.0★, 1 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. Blockify Checkout Customizer fits better if you prioritize broader integrations; QuantityLock ‑ Product Limits is the call if you need the higher-rated option. 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. Blockify Checkout Customizer has more onboarding documentation maturity (257 reviews vs 1), 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.
Blockify Checkout Customizer typically suits early-stage and growth-mode stores based on its review-base composition (257 reviews). QuantityLock ‑ Product Limits aligns more with early-stage and growth-mode stores (1 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. Blockify Checkout Customizer and QuantityLock ‑ Product Limits 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 QuantityLock ‑ Product Limits" in each app's help center. AppRanks does not track migration tooling directly — this is a category-specific capability worth verifying before commitment.
