Prefetch Master: 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 9, 2026 for Prefetch Master, Nov 6, 2026 for Thunder Page Speed Optimizer.
The short answer
- Only Thunder Page Speed Optimizer lists a free plan.
- Thunder Page Speed Optimizer lists 8 features Prefetch Master’s listing doesn’t mention, including Analytics, Audits, Image compression.
Head to head
- United States
- Australia
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 featureSlow-loading pages can lead to lost customers and lower conversions. This app improves your store’s browsing experience by preloading pages in the background as customers hover over links. By speeding up second-page load times, it ensures smoother navigation and better performance. The app is easy to set up, requires no coding, and works seamlessly with the platform`s latest features.
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.
- Preload pages to make them feel faster and improve user experience
- Improve page speed on mobile devices and slower connections
- Built for Shopify Online Store 2.0 with native compatibility
- Quick installation with no technical setup required
- 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 |  Prefetch Master |  Thunder Page Speed Optimizer |
|---|---|---|
| Detected stores | 17 | Not published |
| Net store change, 28 days | +2 | 0 |
| Stores added, 28 days | 2 | Not enough data |
| Big-brand share | Not enough data | Not enough data |
| Top store categories | Apparel & Accessories, Home & Garden, Electronics | Not published |
| Top store countries | United States, Australia | Not published |
Reviews
| Measure | Prefetch Master | Thunder Page Speed Optimizer |
|---|---|---|
| App Store rating | Not published | 4.9 ★ |
| App Store reviews | Not published | 89 |
| New reviews, 28 days | Not enough data | 8 |
| Reviewers a year or more in | Not enough data | 0% |
Pricing
| Measure | Prefetch Master | 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 | Prefetch Master | Thunder Page Speed Optimizer |
|---|---|---|
| Shopify category rank | #452 | #54(ahead) |
| Shopify App Charts | Not on this week’s charts | Not on this week’s charts |
| Built for Shopify | No | No |
| Launched | Dec 31, 2024 | May 27, 2022 |
| Languages | 1 | 1 |
| Developer | Betterave Apps | Enigma Apps |
FAQ
Prefetch Master and Thunder Page Speed Optimizer: common questions
- Is Prefetch Master 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?
- Prefetch Master lists 1 the others don’t mention, such as SEO score. Thunder Page Speed Optimizer lists 8 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 9, 2026 for Prefetch Master, Nov 6, 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 9, 2026 for Prefetch Master, Nov 6, 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.