Custom Shopify theme or template: how to decide
What changes between adapting an existing theme and building your own, and what to check before choosing for your Shopify store.
Read articleShopify and other platforms: an ecommerce decision matrix
To compare Shopify with other ecommerce platforms, start with your business requirements: catalogue, content, payments, channels, integrations and team. The best alternative resolves those processes with manageable costs and maintenance. A feature list or “best platform” ranking does not replace that evaluation.
To compare Shopify with other ecommerce platforms, start with your business requirements: catalogue, content, payments, channels, integrations and team. The best alternative resolves those processes with manageable costs and maintenance. A feature list or “best platform” ranking does not replace that evaluation.
This page is a decision map. The individual comparisons explore each pair of platforms in depth; here, the aim is to prepare the questions that prevent you choosing based on a demo or the lowest subscription.
First decision: what kind of system do you want to maintain?
A managed platform delegates part of the infrastructure and product updates. A self-hosted installation gives you more control over the environment and code, with maintenance responsibilities. Neither model removes the need to look after data, permissions, design and integrations.
Shopify and BigCommerce are managed options focused on ecommerce. WooCommerce adds ecommerce to WordPress. PrestaShop Open Source lets you run your own installation. Wix combines website building and commerce features. Each specific offer may include additional services and conditions worth separating.
The matrix to complete
| Requirement | What you must demonstrate |
|---|---|
| Catalogue | Real products with their options, formats, prices and filters. |
| Content | Pages and campaigns the team can edit and maintain. |
| Operations | Orders, shipping, returns and documents that follow the expected flow. |
| Integrations | Data travelling correctly between the website, ERP, warehouse and other channels. |
| International | The markets, languages, currencies and entities you actually need. |
| SEO | Architecture, content and URL control suited to your target searches. |
| Maintenance | An owner and budget for changes and incidents. |
Mark each requirement as included, app-based, custom-developed or not covered. Then record its cost and who maintains it. Offers stop looking equivalent when they actually include different work.
How to evaluate ease of use
Ask the team to create a product, change a category and publish a campaign. Use your own content and check mobile. If they need help at every step, identify whether the issue is training, project structure or a tool limitation.
A platform with a comfortable editor can still be difficult to operate if the catalogue is poorly modelled. Conversely, a solution offering more technical flexibility can fit well when a team needs it and can maintain it.
Compare equivalent costs
Include implementation, platform or hosting, tools, payments, support and planned changes. Check which costs are subscriptions, which depend on usage and which need an additional budget. Introductory promotions and rates for other countries are not a sufficient reference for operating costs in Spain.
Consider internal time too. If marketing spends hours repeating data or operations corrects stock manually, that work is part of the system's cost even if it never appears on a software invoice.
Do not choose a platform to fix a different problem
If good photographs, product clarity or an understandable offer are missing, changing CMS may not solve the issue. If the ERP publishes incorrect data, the connector will still need rules. Identify what depends on the platform and what belongs to the catalogue, processes or customer acquisition.
Migration also brings cost and operational risk. Before assuming it is necessary, compare a focused correction to the current store with the full new project. Keeping a platform that works can be a good decision.
The decision test
- Choose the three requirements you can least afford to lose.
- Demonstrate the journey in the shortlisted alternatives.
- Calculate costs over the same scope and period.
- Check that the team can work with the solution.
- Review recovery, data ownership and a future exit.
If you need to assess Shopify against those requirements, platform and operations consulting can help you reach a decision. The result should make clear what fits, what needs adapting and what remains unresolved.
Continue working on your store
Sources and review
- Migrating to Shopify: Shopify documentation
- Shopify plans and pricing in Spain
- BigCommerce: plans and conditions
- Google Search Central: helpful, reliable, people-first content
Editorial review: the Migraciones.io team · 30 October 2026. Features, plans and availability are checked against the linked sources.