Quant Image Optimizer vs SEOWILL‑ Page Speed Optimizer
Two Shopify apps, side by side: detected stores, momentum, reviews, plans, listed features and who runs each. Store counts as of Oct 13, 2026 for Quant Image Optimizer, Nov 9, 2026 for SEOWILL‑ Page Speed Optimizer.
The short answer
- SEOWILL‑ Page Speed Optimizer lists 18 features Quant Image Optimizer’s listing doesn’t mention, including Alt text, ALT text, Audits.
Head to head
Speed up your store with Quant Image Optimizer
Image Compression,Image Alt, Add Watermark. Page speed boost.
- United States
- India
- Germany
Momentum
New reviews each month
Review pace is the clearest public read on how fast an app is winning new merchants.
One-time charge
Coverage counts what each App Store listing names. Every feature, checked off app by app, is in Shoplist.
See every featureEnhance Site Performance With SEOWILL(Formerly SEOAnt). Deliver a faster, smoother browsing experience with intelligent link preloading. Slow page loads hurt engagement and conversions. Our smart preloading technology anticipates user actions and loads content before they click, reducing wait times and improving navigation flow. Built for Shopify, it works seamlessly with zero setup or technical skills required.
- Auto optimize image size on the basis of settings without quality downgrade
- You can edit Alt Text, File Name and convert PNG to JPG to improve image SEO
- Easily add and customize watermark to protect your brand
- Increase website speed by preloading pages before clicking by users
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 |  Quant Image Optimizer |  SEOWILL‑ Page Speed Optimizer |
|---|---|---|
| Detected stores | Not published | 1,578 |
| Net store change, 28 days | 0 | −34 |
| Stores added, 28 days | Not enough data | 22 |
| Big-brand share | Not enough data | 10% |
| Top store categories | Not published | Apparel & Accessories, Health & Beauty, Home & Garden |
| Top store countries | Not published | United States, India, Germany |
Reviews
| Measure | Quant Image Optimizer | SEOWILL‑ Page Speed Optimizer |
|---|---|---|
| App Store rating | Not published | 4.9 ★ |
| App Store reviews | Not published | 150 |
| New reviews, 28 days | Not enough data | 0 |
| Reviewers a year or more in | Not enough data | 3% |
Pricing
| Measure | Quant Image Optimizer | SEOWILL‑ Page Speed Optimizer |
|---|---|---|
| Free plan | Not listed | Not listed |
| Lowest paid monthly plan | No monthly plan listed | No monthly plan listed |
| Longest free trial | Not listed | Not listed |
| Plans listed | 1 | Not published |
Listing
| Measure | Quant Image Optimizer | SEOWILL‑ Page Speed Optimizer |
|---|---|---|
| Shopify category rank | Not enough data | #48 |
| Shopify App Charts | Not on this week’s charts | #14 in SEO |
| Built for Shopify | No | Yes |
| Launched | Jan 14, 2022 | Jan 9, 2020 |
| Languages | Not published | 6 |
| Developer | Curly Brackets | CWILL |
FAQ
Quant Image Optimizer and SEOWILL‑ Page Speed Optimizer: common questions
- What features does each app list that the other doesn’t?
- SEOWILL‑ Page Speed Optimizer lists 18 the others don’t mention, such as Alt text, ALT text, Audits, Auto-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 Oct 13, 2026 for Quant Image Optimizer, Nov 9, 2026 for SEOWILL‑ 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 Oct 13, 2026 for Quant Image Optimizer, Nov 9, 2026 for SEOWILL‑ 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.