Fastify: SEO Onpage vs Swift SEO 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 8, 2026.
The short answer
- Swift SEO Page Speed Optimizer is detected on 51× as many Shopify stores as Fastify: 410 vs 8 as of Nov 8, 2026.
- On the Shopify App Store: Fastify 3.6 from 33 reviews and Swift SEO Page Speed Optimizer 4.5 from 183 reviews.
- Only Swift SEO Page Speed Optimizer lists a free plan.
- Swift SEO Page Speed Optimizer lists 15 features Fastify’s listing doesn’t mention, including Analytics, Audits, Competitor analysis.
Head to head
Fix SEO, Optimize SEO Onpage issues to increase more traffic
Image Compression, PageSpeed, Lazy Load JS, Site Speed Booster
- United States
- Canada
- Colombia
- United States
- United Kingdom
- Germany
Momentum
New reviews each month
Review pace is the clearest public read on how fast an app is winning new merchants.
FREE
- · Free insights and analysis
- · Loading screen customization
- · Local business snippet
- · Preloading page resources
- · Sitemap and llms.txt quick generation
BASIC
- · 10 competitors scan/mo
- · 60-day image backup
- · All in FREE, Plus:
- · Basic theme optimization
- · ChatGPT suggestion
- · FAQ snippets
PREMIUM
- · 30 competitors scan/mo
- · 90-day backup
- · Advanced theme optimization
- · All in BASIC, Plus:
- · GA4-based preloading
- · Live chat
PREMIUM Plus
- · 100 competitors scan/mo
- · 120-day backup
- · Advanced SEO features and support
- · All in Premium, Plus:
- · Auto optimization
- · Bulk, auto SEO content
Coverage counts what each App Store listing names. Every feature, checked off app by app, is in Shoplist.
See every featureAuto SEO issues scan and suggestions: Point out what your SEO problems are and how to correct it. Compress images: Optimize all images by product, collection, asset, article images to make site loading better (auto BACKUP). Full Content suggestions for SEO: Add your Focus Keyword and let this app suggest you how to write and improve your SEO Content and beat other store on Search Engines.
With Swift, you can turn the technical headaches of SEO & speed into clicks. Swift's SEO features help optimize your store for the latest Google SEO ranking factors: SEO meta title & description generated by ChatGPT, alt text, redirects, sitemap, in-depth SEO audit, auto SEO scan, and detect missing SEO content. Swift also provides you advanced speed optimization techniques.
- Suggest correct SEO content on Website. Content is KING for SEO.
- Start Guide for every configuration. No coding required
- Auto optimize Website for SEO. Check SEO results by day
- Auto-generate SEO meta tags & alt text for products and vital pages with ChatGPT
- Boost SEO & CTR by getting site on featured snippet: product rating, local, FAQ
- Preserve your hard-earned SEO efforts with 301 and 302 broken link redirects
- Stay on top of your competitor SEO performance with in-depth competitor analysis
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 |  Fastify |  Swift SEO Page Speed Optimizer |
|---|---|---|
| Detected stores | 8 | 410(ahead) |
| Net store change, 28 days | 0 | −3 |
| Stores added, 28 days | Not enough data | 6 |
| Big-brand share | Not enough data | 8% |
| Top store categories | Apparel & Accessories, Food, Beverages & Tobacco, Electronics | Apparel & Accessories, Home & Garden, Health & Beauty |
| Top store countries | United States, Canada, Colombia | United States, United Kingdom, Germany |
Reviews
| Measure | Fastify | Swift SEO Page Speed Optimizer |
|---|---|---|
| App Store rating | 3.6 ★ | 4.5 ★(ahead) |
| App Store reviews | 33 | 183(ahead) |
| New reviews, 28 days | 0 | 1(ahead) |
| Reviewers a year or more in | Not enough data | Not enough data |
Pricing
| Measure | Fastify | Swift SEO Page Speed Optimizer |
|---|---|---|
| Free plan | Not listed | Yes |
| Lowest paid monthly plan | No monthly plan listed | $9/month |
| Longest free trial | Not listed | 3 days |
| Plans listed | Not published | 4 |
Listing
| Measure | Fastify | Swift SEO Page Speed Optimizer |
|---|---|---|
| Shopify category rank | #384 | #198(ahead) |
| Shopify App Charts | Not on this week’s charts | #19 in SEO |
| Built for Shopify | No | Yes |
| Launched | Oct 2, 2019 | Oct 8, 2020 |
| Languages | 1 | 5 |
| Developer | Fastify Apps | FireGroup |
FAQ
Fastify and Swift SEO Page Speed Optimizer: common questions
- Which is more popular, Fastify or Swift SEO Page Speed Optimizer?
- Swift SEO Page Speed Optimizer is detected on 51× as many Shopify stores as Fastify: 410 vs 8 as of Nov 8, 2026.
- Is Fastify or Swift SEO Page Speed Optimizer cheaper?
- Only Swift SEO 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.
- Which has better reviews, Fastify or Swift SEO Page Speed Optimizer?
- On the Shopify App Store: Fastify 3.6 from 33 reviews and Swift SEO Page Speed Optimizer 4.5 from 183 reviews.
- What features does each app list that the other doesn’t?
- Fastify lists 11 the others don’t mention, such as AMP pages, APIs and webhooks, Backlinks, Breadcrumbs. Swift SEO Page Speed Optimizer lists 15 the others don’t mention, such as Analytics, Audits, Competitor analysis, Convert file types. 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 8, 2026; 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 8, 2026. 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.