Shopify and BigCommerce are the two most credible SaaS ecommerce platforms available to UK brands. Both offer managed hosting, built-in ecommerce features, app ecosystems, and competitive pricing. On a feature comparison spreadsheet, they look remarkably similar.
In practice, they are meaningfully different. The differences lie not in any single feature but in ecosystem depth, market momentum, developer availability, and the compounding advantages that come from being the market leader versus the challenger.
This comparison is honest about both platforms. BigCommerce is a good platform — in several specific areas, it is objectively better than Shopify. But for most UK ecommerce brands, Shopify is the stronger overall choice. Here is why.
Similar on paper, different in practice
Both Shopify and BigCommerce are SaaS platforms with managed hosting, SSL, CDN, and automatic updates. Both offer tiered pricing plans, app marketplaces, and theme ecosystems. Both handle payments, shipping, tax, and inventory management. If you only compared feature checklists, you might conclude they are interchangeable.
The differences emerge when you look at ecosystem depth, community size, and the network effects that compound over time. Shopify's market leadership means that app developers build for Shopify first, integration partners prioritise Shopify, and the developer talent pool for Shopify is larger. These are not features — they are structural advantages.
Pricing comparison
| Plan tier | Shopify | BigCommerce |
|---|---|---|
| Entry level | Basic: ~£31/mo ($39) | Standard: ~£24/mo ($29) |
| Mid tier | Shopify: ~£83/mo ($105) | Plus: ~£63/mo ($79) |
| Advanced | Advanced: ~£316/mo ($399) | Pro: ~£238/mo ($299) |
| Enterprise | Plus: ~£1,820/mo ($2,300) | Enterprise: Custom pricing |
| Transaction fees (third-party gateway) | 0.5-2% | None |
| Credit card rates (UK) | 1.5-2% + 25p | Varies by gateway |
BigCommerce is slightly cheaper at each tier and does not charge transaction fees on third-party gateways. This is a genuine pricing advantage. However, if you use Shopify Payments (available in the UK), Shopify's transaction fees are eliminated, making the cost difference marginal for most brands.
The more meaningful cost comparison is total cost of ownership, which includes apps, developer costs, and opportunity costs from ecosystem limitations. For context, see our analysis of what a Shopify store build should cost.
Built-in features
This is where BigCommerce has a legitimate advantage. BigCommerce includes more features natively, reducing reliance on third-party apps:
| Feature | Shopify | BigCommerce |
|---|---|---|
| Product variants per product | 100 (Plus: 2,000) | 600 |
| Multi-currency | Shopify Markets | Native (all plans) |
| Real-time shipping quotes | Advanced plan+ | All plans |
| Product filtering | App required for advanced | Native (more options) |
| Customer groups / segmentation | Plus required | All plans |
| Abandoned cart emails | All plans | All plans |
| Gift cards | All plans | All plans |
| Bulk pricing / customer-specific | Plus or app | Native (Plus+) |
| Custom fields on products | Metafields | Custom fields (native) |
BigCommerce's higher variant limit (600 vs 100) is a genuine advantage for brands with complex product configurations. Its native customer groups and bulk pricing features eliminate the need for apps that Shopify merchants must install separately.
However, having a feature built in is only an advantage if the built-in implementation is good enough. In several cases, Shopify's app ecosystem provides better solutions than BigCommerce's native features. Product filtering, for example, is native in BigCommerce but Shopify's specialist filtering apps offer more sophisticated implementations.
App ecosystem and integrations
This is Shopify's decisive advantage. Shopify's App Store has over 10,000 apps. BigCommerce's marketplace has approximately 1,000. The difference is not just quantity — it is quality, competition, and innovation.
When ten apps compete to solve the same problem on Shopify, the result is better solutions at lower prices. When BigCommerce has two apps for the same need, there is less competitive pressure to innovate. For example:
- Email marketing: Both platforms integrate with Klaviyo, but Shopify's Klaviyo integration is deeper and more feature-rich because Klaviyo prioritises Shopify development.
- Reviews: Shopify has Judge.me, Stamped.io, Loox, Junip, and numerous alternatives. BigCommerce has fewer options, and they tend to be less polished.
- Subscriptions: Shopify has Recharge, Bold, Loop, Skio, and others competing aggressively. BigCommerce has fewer subscription app options.
- Loyalty: Shopify has Smile.io, LoyaltyLion, Yotpo, and others. BigCommerce's loyalty app selection is limited.
This ecosystem gap affects every aspect of running your store. When you need a specific integration or capability, Shopify almost always has more options and better-quality solutions available.
Themes and design
Shopify's theme ecosystem is significantly larger and more diverse than BigCommerce's. Shopify offers approximately 150+ themes (free and premium) in its official theme store, plus thousands of themes from third-party marketplaces like ThemeForest. BigCommerce offers approximately 200 themes, with fewer premium options.
The quality gap is meaningful. Shopify's theme ecosystem has matured significantly, with themes that are well-coded, performant, and designed for conversion. The Online Store 2.0 architecture provides a powerful theme customisation framework that allows store owners to modify layouts without writing code.
BigCommerce themes are functional but generally less refined. The Page Builder tool offers visual editing, but the ecosystem of purpose-built, conversion-optimised themes is smaller. For brands that value professional web design, the theme starting point matters — and Shopify offers better starting points.
Checkout and conversion
Shopify's checkout is its most significant structural advantage. Shop Pay, the accelerated checkout experience, stores customer payment and shipping information and enables one-tap purchasing. Shopify continuously optimises this checkout across billions of transactions, and every Shopify merchant benefits from those improvements automatically.
BigCommerce's checkout is competent but lacks an equivalent accelerated checkout experience. PayPal offers a similar one-tap experience, but Shop Pay's integration with the Shopify ecosystem is tighter and the adoption rate among shoppers is higher.
For a UK brand doing £500k in annual revenue, even a 0.5% improvement in checkout conversion rate translates to £2,500 in additional annual revenue. Over multiple years, Shopify's checkout advantage can represent a significant financial benefit.
SEO capabilities
Both platforms handle ecommerce SEO competently. Here is how they compare:
BigCommerce advantages: More URL customisation flexibility. Does not force the /products/, /collections/, /pages/ URL structure that Shopify uses. Automatic 301 redirects when URLs change. Slightly more control over robot.txt files.
Shopify advantages: Faster page load times (thanks to optimised CDN infrastructure), which is a ranking factor. Automatic canonical tags. Better structured data support in modern themes. Larger ecosystem of SEO apps and tools.
In practice, the SEO difference between the two platforms is negligible. Both can rank well in Google when properly optimised. The quality of your content, your technical SEO implementation, and your link profile matter far more than which SaaS platform you are on.
Scalability
Both platforms scale well within the SaaS model. Shopify's upgrade path from Basic to Plus is seamless. BigCommerce's path from Standard to Enterprise is similarly smooth.
The key scalability differences are:
- Revenue thresholds: BigCommerce imposes annual revenue limits on its standard plans (Standard: £38k, Plus: £118k, Pro: £315k). If you exceed these, you are automatically upgraded to the next tier. Shopify does not impose revenue-based plan restrictions.
- API limits: Shopify Plus offers higher API rate limits, which matters for stores with heavy integration requirements.
- Enterprise features: Shopify Plus includes checkout customisation, Shopify Flow automation, and dedicated support. BigCommerce Enterprise includes custom filtering, price lists, and API priority.
For brands planning significant growth, Shopify's lack of revenue-based plan restrictions is an advantage. You choose your plan based on features, not on how much revenue you generate. BigCommerce's revenue thresholds can force premature plan upgrades.
For a deeper look at how Shopify handles growth, read our guide to enterprise ecommerce on Shopify.
Headless commerce
BigCommerce has positioned itself as a strong headless commerce platform, and this is a legitimate advantage for brands building custom frontend experiences.
BigCommerce's API-first architecture makes it relatively straightforward to use BigCommerce as a backend while building a custom frontend with React, Next.js, or another framework. The platform has invested in headless commerce partnerships and documentation.
Shopify has responded with Hydrogen (its React-based framework) and the Storefront API. Shopify's headless capabilities are now competitive, but BigCommerce arguably offers a more flexible headless implementation for developers who want complete frontend freedom.
For most UK ecommerce brands, headless commerce adds complexity without proportional benefit. But if you are specifically building a headless implementation, BigCommerce deserves serious consideration.
UK-specific considerations
Developer availability: Finding a Shopify developer in the UK is significantly easier than finding a BigCommerce specialist. The Shopify developer talent pool is larger, rates are more competitive, and agencies with Shopify expertise are more numerous.
Payment gateways: Both platforms support UK payment providers. Shopify Payments is available in the UK, providing competitive processing rates and eliminating transaction fees. BigCommerce supports multiple UK gateways with no additional transaction fees on any gateway.
VAT handling: Both platforms handle UK VAT, including VAT-inclusive pricing display. Shopify's implementation is slightly more streamlined for the standard UK B2C use case.
Shipping: Both integrate with UK carriers (Royal Mail, DPD, Evri, DHL). BigCommerce's native real-time shipping quotes on all plans is an advantage over Shopify, which restricts this feature to higher-tier plans.
Community and support: Shopify has a larger UK community, more UK-focused resources, and a more active partner programme. BigCommerce's UK presence is smaller, which can mean longer support response times and fewer local resources.
The verdict
Choose Shopify if:
- You want access to the largest ecosystem of apps, themes, and developers
- Checkout conversion is a priority and you want to benefit from Shop Pay
- You value the ability to find qualified developers and agencies easily
- You are building a standard DTC ecommerce operation
- You plan to use Shopify Payments (eliminating transaction fee concerns)
- You want the widest range of third-party integrations (Klaviyo, reviews, loyalty, etc.)
Choose BigCommerce if:
- You need more than 100 product variants per product (BigCommerce offers 600)
- You want to avoid transaction fees and prefer using a third-party payment gateway
- You want more built-in features without relying on apps
- You are building a headless commerce implementation with a custom frontend
- You need native customer groups and bulk pricing on lower-tier plans
- Your business model requires real-time shipping quotes without paying for Advanced plans
For the majority of UK ecommerce brands, Shopify is the stronger choice. Not because BigCommerce is deficient — it is a capable platform — but because Shopify's ecosystem advantages compound over time, creating a better experience across apps, themes, developer talent, and conversion optimisation.
If your current platform is holding your business back, the choice between Shopify and BigCommerce is less important than the decision to move. Both are significant upgrades from legacy or self-hosted platforms. But if you are choosing between the two, Shopify's ecosystem depth gives it the edge for most UK brands.
If you are evaluating Shopify or BigCommerce for your UK ecommerce brand and would like expert guidance, start a conversation with us. We will help you make the right platform decision based on your specific requirements.