Head-to-Head Theme Duel

FlatsomeVSKalles

We've tested both themes side-by-side. Here's every metric, feature, and detail you need to choose the right one.

Overall Score

Flatsome

4 - 2 wins

Combined Rating

4.9/5

7,500 + 2,200 reviews

Combined Sales

245,636

Total purchases

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Overall Winner

Flatsome

E-commerce

$59 / license

Flatsome is the perfect theme for your shop or company website, or for all your client websites if you are an agency or freelancer. It has all the tools needed to create super fast responsive websites with amazing user experience.

4.8

7,500 reviews

220,000 sales

Desktop Speed97/100

Mobile Speed89/100

Load Time1.4s

Get Flatsome for $59

Kalles

E-commerce

$89 / license

Kalles is a clean, versatile, and blazing-fast Shopify theme by The4, built for performance, conversion, and long-term growth. With over 25,000 sales and a 4.98-star rating from 2,200+ reviews, it is one of the most trusted Shopify themes on ThemeForest. Kalles is not just about design — it ships with built-in conversion features that save you money on paid apps, an optimized core with no bloated scripts, and fifteen-plus purpose-built demo sites you can import and customize in minutes. Whether you run a small boutique or a large catalog, Kalles is built to scale with your business.

4.98

2,200 reviews

25,636 sales

Desktop Speed96/100

Mobile Speed88/100

Load Time1.2s

Get Kalles for $89

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Detailed Specs Comparison

Feature Availability

Feature

Flatsome

Kalles

WooCommerce Ready

Yes

Elementor Compatible

RTL Support

Yes

WPML / Multilingual

Yes

SEO Optimized

Translation Ready

Portfolio Layouts

Blog Layouts

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Speed Winner

Flatsome

97/100 Desktop

Mobile Winner

Flatsome

89/100 Mobile

Popularity Winner

Flatsome

220,000 total sales

Flatsome — Pros

Most established e-commerce theme on the market
Incredible documentation and community support
Very easy to use for non-technical users
Built-in banner and slider system

Flatsome — Cons

Proprietary UX Builder can be restrictive for advanced developers
Older codebase compared to some modern 2026 competitors

Kalles — Pros

Proven track record: 25,000+ sales and a 4.98-star rating from 2,200+ reviews
Built-in conversion features reduce reliance on paid Shopify apps
15+ demos importable in minutes with drag-and-drop customization
Fast, lightweight core with strong Core Web Vitals performance

Kalles — Cons

Premium pricing compared to budget Shopify themes
More demos and options can feel overwhelming for first-time users
Some advanced modules still benefit from the EComposer partner app

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The Final Verdict

After analyzing every metric, here's our professional recommendation.

Flatsome

Winner

94/100

Overall Score

Flatsome remains a titan of the industry. While it lacks some of the hyper-modern AJAX features of WoodMart, its UX Builder is still one of the most user-friendly tools ever made for WordPress. It's the 'safe bet' for any e-commerce project.

Kalles

95/100

Overall Score

Kalles is the safe, proven pick for Shopify merchants who want a theme that just works. The 4.98-star rating from thousands of buyers is earned: it's fast, flexible, and genuinely conversion-focused. The value proposition is simple — you pay a bit more than budget themes and get a theme that replaces several paid apps and years of trust.

Flatsome is our recommended choice with a score of 94 vs 95. It wins in 4/6 comparison categories. However, both themes are excellent — your final decision should factor in your specific project needs and builder preference.

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