Feathers: Page Speed Booster vs Thunder Page Speed Optimizer
Two Shopify apps, side by side: detected stores, momentum, reviews, plans, listed features and who runs each. Store counts as of Nov 4, 2026 for Feathers, Nov 3, 2026 for Thunder Page Speed Optimizer.
The short answer
- Only Thunder Page Speed Optimizer lists a free plan.
- Thunder Page Speed Optimizer lists 12 features Feathers’s listing doesn’t mention, including Analytics, Audits, Image compression.
Head to head
Momentum
New reviews each month
Review pace is the clearest public read on how fast an app is winning new merchants.
Free Plan
- · Basic Optimizations
- · Email Support
Advanced
- · Auto-optimize on theme updates
- · Critical CSS
- · Daily Lighthouse score tracking
- · Defer JS, CSS & 3rd-party apps scripts
- · Lazy-load offscreen images
- · Predictive Link Preloading
Visitor Insights
- · 500K visitor pageviews included
- · Actionable fix suggestions
- · All optimizations included
- · Core Web Vitals from your real visitors
- · Core Web Vitals: LCP, CLS, INP
- · Page-by-page Core Web Vitals breakdown
AI Agent
- · Automatically fix theme issues
- · Automatically optimize Core Web Vitals
- · Detect regressions within hours
- · Includes Performance Insights
- · Powered by Claude Opus & GPT-5.6
- · Priority Hands-On Support
Coverage counts what each App Store listing names. Every feature, checked off app by app, is in Shoplist.
See every featureFeathers: Page Speed Booster helps your storefront load faster without editing your theme code. Turn it on as an app embed and it lazy-loads off-screen images, gives your main image priority, loads YouTube and Vimeo players only when visitors click play, and prefetches pages on hover so they open quickly. One click analyzes your store, checks your theme and app scripts, and gives you a clear, prioritized fix list.
Keep your store speed fast, easy to discover, and ready for AI / LLMs. Thunder continuously monitors how real shoppers experience every page and proactively optimizes slow pages, images, CSS, navigation, and third-party scripts. It identifies delayed clicks, layout shifts, broken links, and hard-to-crawl content, then prioritizes what needs attention.
- Lazy-loads off-screen images and gives your main banner image priority
- Loads YouTube and Vimeo videos only when a visitor clicks play
- Prefetches pages on hover so product pages open quickly
- One-click store analysis with a prioritized fix list
- Massively speed your store up. Boost SEO score. Lower CPMs.
- Fix apps and themes that slow down your store speed score.
- Faster websites = Less frustrated customers = More Sales
- Instant "Above The Fold" loading + Predictive preloading webpage technology
All the numbers
Every figure, side by side
A green dot marks the app ahead on a measured figure. Estimates, gaps and apps that leave no storefront trace never take the lead.
Adoption
| Measure |  Thunder Page Speed Optimizer | |
|---|---|---|
| Detected stores | Not published | Not published |
| Net store change, 28 days | 0 | 0 |
| Stores added, 28 days | Not enough data | Not enough data |
| Big-brand share | Not enough data | Not enough data |
| Top store categories | Not published | Not published |
| Top store countries | Not published | Not published |
Reviews
| Measure | Thunder Page Speed Optimizer | |
|---|---|---|
| App Store rating | Not published | 4.9 ★ |
| App Store reviews | Not published | 90 |
| New reviews, 28 days | Not enough data | 7 |
| Reviewers a year or more in | Not enough data | 0% |
Pricing
| Measure | Thunder Page Speed Optimizer | |
|---|---|---|
| Free plan | Not listed | Yes |
| Lowest paid monthly plan | No monthly plan listed | $19.99/month |
| Longest free trial | Not listed | 7 days |
| Plans listed | Not published | 4 |
Listing
| Measure | Thunder Page Speed Optimizer | |
|---|---|---|
| Shopify category rank | Not enough data | #65 |
| Shopify App Charts | Not on this week’s charts | Not on this week’s charts |
| Built for Shopify | No | No |
| Launched | Nov 2, 2026 | May 27, 2022 |
| Languages | 1 | 1 |
| Developer | Media Feathers | Enigma Apps |
FAQ
Feathers and Thunder Page Speed Optimizer: common questions
- Is Feathers or Thunder Page Speed Optimizer cheaper?
- Only Thunder Page Speed Optimizer lists a free plan. Shoplist compares base prices only between monthly plans in the same currency; usage charges and annual plans vary, so check each plan’s limits.
- What features does each app list that the other doesn’t?
- Thunder Page Speed Optimizer lists 12 the others don’t mention, such as Analytics, Audits, Image compression, Image optimization. A feature missing from a listing may still be supported; this compares what each App Store listing says.
- Where does this comparison’s data come from?
- Shoplist crawls Shopify storefronts to detect which apps each store runs, and reads each app’s Shopify App Store listing for reviews, pricing, features and integrations. Store counts are as of Nov 4, 2026 for Feathers, Nov 3, 2026 for Thunder Page Speed Optimizer; estimated figures are labeled.
How Shoplist compares apps
Store counts come from Shoplist’s crawl of Shopify storefronts, which detects the apps each store runs; they are as of Nov 4, 2026 for Feathers, Nov 3, 2026 for Thunder Page Speed Optimizer. Reviews, ratings, plans, features and integrations come from each app’s Shopify App Store listing. 28-day figures are labeled when estimated, and a figure that is missing or estimated never decides who leads. Read the methodology.