Ask three agencies which platform you should choose for your online store and you’ll get three confident answers, usually matching whatever they happen to sell. Let’s try to be more useful. We build online stores on ready platforms and we build custom ones, so we have no reason to push you in one direction. Here is the honest version of the tradeoffs.
The ready platforms: what you get
A hosted platform like Shopify gives you a working store quickly: product catalogue, cart, checkout, payments, shipping options, security updates and hosting are handled for you. You pay a monthly fee plus per-transaction costs and often for paid apps, and in return you skip a long list of problems. For a business that wants to start selling soon with a fairly standard process, this is hard to beat. Its strengths are speed, reliability and a big ecosystem of apps and themes. Its limits show up when you need something the platform doesn’t expect, or when the costs of apps and fees keep creeping up as you grow.
WooCommerce, which runs on WordPress, is the other common choice. The software is free and flexible, and you own the store and its data. In exchange, you (or your developer) look after hosting, updates, backups, security and speed. A WooCommerce store can be excellent, but it tends to be a stack of plugins from different authors, and every plugin is another thing that can conflict with the next update. It rewards good care and punishes neglect.

The custom store: what you get
A custom store is built around your business instead of the other way round. You decide how products are structured, how prices are calculated, which steps the checkout has, how orders flow into your warehouse or accounting, and what the admin screen looks like for the people who use it all day. There is no monthly platform fee and no ceiling on how unusual your idea can be. The price for that freedom is real: a bigger upfront investment, a longer start, and the responsibility for keeping the thing healthy afterwards. Someone must maintain it, secure it and improve it.
Questions that decide it
Is your business model standard? If you sell physical products to consumers in the usual way, a ready platform probably covers 90 percent of your needs from day one. If you sell configurable products, rentals, subscriptions with odd rules, B2B price lists per customer or marketplace-style listings from many sellers, you will start fighting the platform. How fast do you need to launch? Ready platforms win here, often by a lot. How much will you change over time? A store that needs new logic every month benefits from being built for that. Who will run it day to day? The best system is the one your team can actually operate.
Also count the full cost, not just the sticker price. On a ready platform: subscription, transaction fees, paid apps, theme customisation, and a developer when something needs tweaking. On WooCommerce: hosting, premium plugins, maintenance and security. On a custom store: the build, hosting, and ongoing development. We won’t quote numbers here because they depend entirely on your project, but make the comparison over two or three years, not over the first month.
Lock-in and exits
Before you commit, ask the unromantic question: what if I want to leave? Can I export my products, customers, order history and URLs? Hosted platforms usually let you export the basics, but your design, apps and some data structures stay behind. With a custom store, the answer depends on the contract: you should receive the source code and be able to host it where you choose. Whatever you pick, keep your own domain name, your own analytics account and a regular backup of your data. Those three are your emergency exit on any platform.

A decent rule of thumb: start with the simplest thing that can sell your product, learn from real customers, and move to something more custom only when you can name the exact limitation that is holding you back. Migrating a store later is a normal project, not a tragedy. Waiting a year to launch the perfect store is the real tragedy.
If you’re choosing right now, tell us what you sell, how orders reach your customers and what annoys you about your current setup. We’ll give you a straight recommendation, even when that recommendation is a plan that has nothing to do with us.