Shopify or Custom E-Commerce Site: How to Decide
Shopify lets you launch a functional online store within days starting at $29 a month, with no technical skill required, but takes commissions on sales that add up at high volume. A custom e-commerce site costs between €3,000 and €15,000 to build, with no recurring commission, but is mainly worthwhile once you have a specific need or a revenue level that makes Shopify's fees costly over time.
The real problem: confusing launch speed with total cost
The "Shopify or custom" question often gets asked at the wrong moment, right at project creation, when the answer really depends on what happens after launch. Shopify wins hands down on time-to-launch and the lack of technical skill required: you pick a theme, add products, connect a payment method, and the store is live. Custom development wins on full control and the absence of a recurring cost tied to sales volume, but requires a bigger upfront investment and a longer development time.
The real calculation to make isn't "which is better" in the abstract, but "which costs less over three years given my sales volume and specific needs."
What Shopify does well
Shopify remains a solid solution for starting an e-commerce business with no in-house technical resources. The platform handles hosting, security, and updates, and offers an app ecosystem for nearly every common need: inventory management, email marketing, customer reviews, loyalty programs. Payment via Shopify Payments is natively integrated, which simplifies getting started.
The trade-off is the cumulative cost: a monthly subscription (starting at $29 for the base plan, more for advanced features), transaction fees if you don't use Shopify Payments, and the cost of third-party apps that adds up quickly once you want to go beyond the standard scope. For a small store with a simple catalog, this cost stays reasonable. For a growing business, it becomes a significant recurring expense.
What custom development lets you do
A custom-built e-commerce site has no commission on sales and no third-party platform subscription: the main cost is the initial build, then maintenance. It also lets you implement exactly the business logic you want, without working around the limits of a theme or an app: pricing rules by customer segment, fine-grained integration with an existing ERP or management software, a purchase flow specific to an industry.
The trade-off is the upfront investment, generally between €3,000 and €15,000 depending on complexity, and the need to budget for maintenance and evolution over time, since there's no longer a platform automatically handling security updates.
The real weight of Shopify's commissions at high volume
This is often the decisive argument in favor of custom development. Transaction fees and the cumulative cost of apps on Shopify are proportional or nearly proportional to activity volume: the more a store sells, the more it pays, with no direct link to the actual cost of the service delivered beyond a certain threshold. A custom site has a fixed cost that doesn't vary with revenue. The tipping point depends on the sector and margin, but stores with several tens of thousands of euros in monthly revenue typically start seriously comparing the two options on this basis.
When staying on Shopify makes sense
Staying on Shopify makes sense when the catalog and needs remain standard, when speed to market matters more than long-term cost optimization, or when the business is still in a validation phase and investing heavily in custom development would be premature. Many profitable stores stay on Shopify indefinitely without ever needing to migrate.
The common mistake: choosing based on ambition rather than current need
A classic mistake is choosing custom development from the start because the project "thinks big," without having yet validated real demand. Building a custom store before selling a single product amounts to investing several thousand euros on untested assumptions. Conversely, staying on Shopify indefinitely out of habit when sales volume clearly justifies switching to custom development loses money every month in avoidable commissions. The right approach is generally to validate the market quickly with a solution like Shopify, then seriously reassess the custom option once real sales data exists.
The role of third-party apps in the real cost calculation
On Shopify, the real cost depends heavily on the number of third-party apps needed to cover requirements not in the base offer: loyalty programs, advanced review management, recommendation tools, syncing with accounting software. Each app adds a monthly cost that, cumulatively, can bring Shopify's total cost significantly closer to that of a custom build, without offering the same level of control over the final result. Before concluding Shopify is the cheaper solution, it's worth precisely listing the apps your business needs and their combined cost over a year.
Shopify vs. custom comparison
| Criterion | Shopify | Custom site |
|---|---|---|
| Starting cost | From $29/month | €3,000-15,000 |
| Time to launch | A few days to a few weeks | Several weeks to a few months |
| Technical skill required | Low | Requires a provider or dev team |
| Commissions on sales | Yes (except Shopify Payments in some cases) | No |
| Business logic customization | Limited to available apps | Total |
| Maintenance and security | Handled by Shopify | Borne by the site (provider or in-house) |
| Best suited for | Launching, standard catalog | High volume, specific business needs |
What to remember
- Shopify is suited to launching quickly with no technical skill, with a cost that grows with sales volume.
- Custom development requires a bigger upfront investment but eliminates recurring commissions.
- The tipping point generally sits around a high sales volume or a business need that Shopify apps don't cover.
- Migrating from Shopify to custom is possible but requires planning, particularly for data export.
- There's no universal right answer: the choice depends on the business's stage and growth trajectory.
Frequently asked questions
Is Shopify really faster to launch than a custom site?
Yes, a basic Shopify store can be live within days thanks to built-in themes and apps. A custom site takes several weeks but then fits exactly what's needed.
At what sales volume does custom development become more profitable than Shopify?
There's no universal threshold, but beyond several tens of thousands of euros in monthly revenue, Shopify's commissions and apps weigh heavily compared to an upfront investment with no recurring commission.
Can you easily migrate from Shopify to a custom site later?
It's possible but takes work: exporting the catalog, customers, and orders, then rebuilding the business logic on the custom side.
Is Shopify suitable for a catalog of several thousand products?
Technically, yes. The limit tends to come from specific needs (complex pricing, ERP integrations) that third-party apps don't always cover well.
In summary
The choice between Shopify and a custom site isn't a matter of quality but of trajectory: Shopify reduces risk and launch time, custom development reduces recurring cost once volume is established. If your needs go beyond a standard online store, custom support can help precisely assess whether custom development is justified in your case.
Frequently asked questions
›Is Shopify really faster to launch than a custom site?
Yes, a basic Shopify store can be live within days thanks to ready-made themes and built-in apps. A custom site takes several weeks of design and development, but then fits exactly what's needed without working around a platform's limits.
›At what sales volume does custom development become more profitable than Shopify?
There's no universal threshold, but beyond tens of thousands of euros in monthly revenue, Shopify's commissions and app fees start weighing heavily compared to the upfront investment of a custom site with no recurring commission on sales.
›Can you easily migrate from Shopify to a custom site later?
It's possible but takes work: exporting the product catalog, customers, and orders, then rebuilding the business logic (promotions, shipping, integrations) on the custom side. Planning for this migration from the start makes the transition easier if it becomes necessary.
›Is Shopify suitable for a catalog of several thousand products?
Shopify technically handles large catalogs without issue. The limit tends to come from specific needs (complex pricing rules, in-house ERP integrations, business logic specific to an industry) that third-party apps don't always cover well.