Inline ‑ Critical CSS for Shopify App Store
By Speed Boostr
Inline ‑ Critical CSS is a Shopify app, with a 3.6 average rating from 8 reviews, with a free plan available, as of Sep 7, 2026.
Inline ‑ Critical CSS is a Shopify App Store app by Speed Boostr, launched March 2021. With a rating of 3.6★ from 8 reviews.
AppRanks data: Inline ‑ Critical CSS has been on the Shopify App Store marketplace since 2021 (5 years of tenure) — long-tenure proxy for resilience through platform API and policy changes.
AppRanks verdict
Generated from live marketplace data — refreshed daily
Inline ‑ Critical CSS is a mixed-rating Shopify app with a limited review volume. Category data on the canonical marketplace listing is currently incomplete, so AppRanks falls back to platform-wide rather than category-relative comparison for this listing. 8 reviews put it in the early-traction tier — useful for early-stage stores willing to be on the leading edge. Early-traction review counts are sensitive to single launch periods or feature events, so a 30-day re-check before bigger commitments often resolves whether the trend is sustained. The free tier lets you trial the entry feature set without committing a payment method. AppRanks tracks rating, review count, pricing tier, and category position daily — the figures on this page reflect the most recent scrape from the canonical Shopify App Store listing.
Pros
- +Free tier available — no card required to evaluate
- +Published by Speed Boostr — established developer track record
Cons
- −Average rating below 4.0 (3.6★) — read recent low-star reviews before committing
- −Limited review base (8) — ratings can shift significantly with new feedback
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About Inline ‑ Critical CSS
How Inline ‑ Critical CSS works
With Critical CSS, the visitor gets the base styling as quickly as possible; because it’s right there in a <style> element in the document’s <head>, there’s: no extra request to the server for the stylesheet & no waiting for the requested styles to load in and render.
The below-the-fold, or non-critical, styling is then loaded in the background to avoid render-blocking.
Screenshots
Key features
- Your website will load faster, especially for first time users.
- A faster load time will increase your conversation rate.
- Rank higher in Google with a faster loading site.
Pricing plans
One-time |
Competitors & alternatives
AppRanks tracks competitor sets per category. For Inline ‑ Critical CSS, the independent listing audit includes a competitive context section, and the full Shopify app index shows the broader marketplace landscape this app competes in. Sign up free to surface a side-by-side competitor matrix customized to your tracked apps.
Frequently asked questions
What is Inline ‑ Critical CSS?
Inline ‑ Critical CSS is an app for Shopify. It currently holds a 3.6-star rating from 8 merchant reviews, and it has been listed on the marketplace since 2021. AppRanks tracks its category position, review-velocity trend, and the top alternatives in the same space. Developed by Speed Boostr.
Is Inline ‑ Critical CSS free?
Inline ‑ Critical CSS offers a free plan that merchants can install on Shopify without entering payment details. Pricing details on this page are mirrored from the live Shopify listing and refresh on each scrape cycle.