When you decide to start an online store you face two options: a ready-made platform such as Salla or Zid, or a custom store built from scratch. Platform vendors tell you custom is expensive and slow; development agencies tell you platforms are limited. The truth is that each suits a different situation.
When a ready-made platform is the right call
If you are just starting and unsure the product will sell, a platform is the rational decision. You reach the market within days at low start-up cost and genuinely test demand before investing in development. The same applies if your operations are entirely standard: simple products, ordinary shipping, no wholesale accounts or special pricing.
Platforms also solve technical problems you then never think about: hosting, security, payment gateway updates and e-invoicing compliance.
When a custom store is genuinely cheaper
At higher sales volume
Platforms charge a monthly subscription and sometimes a percentage of sales. As sales grow, that percentage becomes a large annual number. At that point a one-off custom build costs less than two or three years of subscriptions and commissions.
When your operations are non-standard
Real examples: different pricing for wholesale customers, temporarily reserving stock pending a bank transfer, direct integration with an existing accounting system or ERP, made-to-order product specifications, or internal approval steps before fulfilment. Platforms cover some of this through add-ons, but you usually reach a wall.
When you want to own your data and your product
With a custom store, the code, the data and the customer base are entirely yours and movable to any host. On a platform you are a tenant: if the platform changes policy or pricing, your options are limited.
The differences nobody mentions
Speed and search optimisation
Platforms run on generic templates carrying excess code, which affects site speed and Core Web Vitals. A custom store ships only the code it needs, and you fully control titles, descriptions and structured data per page. If organic Google traffic matters to your sales, that difference is material.
The cost of switching later
Moving from a platform to a custom store after two years is not just migrating products: there are old URLs indexed in Google that must redirect correctly, customer and order data, and operating habits across your team. If you are fairly sure you will need customisation within a year or two, starting custom avoids that migration.
A third option people forget
You can start on a platform to test the market while keeping your domain, customer list and data in a form that lets you move later with minimal loss. The common mistake is building everything inside the platform and only then discovering that leaving is expensive.
Summary
Starting out and testing an idea: begin on a platform. High sales volume, unusual operations, or Google traffic that matters: a custom store is cheaper and stronger. If you are unsure which case you are in, send us your business details and we will tell you honestly which suits you, even when the answer is that a platform fits you better right now.