Compare · Decision guide
Shopify vs custom ecommerce, without the sales pitch.
The real question is not which is better in the abstract — both are right for someone. It is where your store sits on the line between a problem Shopify already solves and one it never will. Here is how to tell honestly.
In short
Shopify vs custom ecommerce: the honest short answer
For most New Zealand stores, Shopify — plus a few well-chosen apps — is the right choice, and staying on it longer than your ego wants to is usually the smart money. It handles hosting, security, payments, PCI compliance and a checkout tuned to convert, so you do not have to. You leave Shopify for a custom-built ecommerce solution when the platform starts fighting how your business actually works: pricing logic it cannot express, an integration it cannot reach, app fees and workarounds stacking up, or a customer experience the theme system caps. If that is not you yet, it may never be — and that is a good outcome, not a lost sale.
In depth
How to actually decide
What Shopify (and Shopify apps) really is
Shopify is a hosted commerce platform: it runs the store, the checkout, the payments and the security for a monthly fee, and Shopify apps extend it for subscriptions, bundles, reviews and the rest. Its strengths are genuine — a checkout tuned by thousands of engineers, PCI compliance you never think about, and you can be selling this week. The honest trade-offs: you rent rather than own, you live inside its data model and theme system, and every gap gets filled by another paid app — so the monthly bill and the number of moving parts quietly grow over time.
What a custom-built ecommerce solution really is
A custom-built ecommerce solution is a store coded around your business — your catalogue, your pricing rules, your checkout, your integrations — on a mainstream stack you own outright. The upside is that nothing is off-limits: any workflow, any integration, any customer experience, no per-app tax. The honest trade-offs are just as real. It costs more up front and takes longer than installing a theme. Security, hosting, payments and PCI become your responsibility to build and maintain correctly. And it only pays off if you genuinely have needs a platform cannot meet — otherwise you have rebuilt Shopify, worse and slower.
The cost and speed reality
Shopify wins on both up front, and it is not close. A theme and a few apps put you live in days for a predictable monthly fee, and someone else patches the servers at 3am. A custom build is a larger up-front investment and takes weeks, because there is real logic to design, build and test. The reason anyone still goes custom is the second curve: platform fees, per-app charges and the labour of working around limitations compound month after month, while a system you own does not. Custom is rarely cheaper on day one — occasionally cheaper by year three.
Ownership, lock-in and the long-term cost
On Shopify you own your products and customers — you can export them — but not the platform: your theme, your app stack and your checkout logic live inside Shopify, and leaving means rebuilding them elsewhere. That lock-in is a fair price for everything Shopify maintains for you, and for most stores it never bites. It bites when the platform caps something central to your business and the only exit is a migration you did not plan for. A custom solution inverts the deal: more responsibility on you, but the code, the data and the infrastructure are assets on your side of the table, portable to any competent developer.
Choose a custom-built ecommerce solution when…
Choose custom when the platform is genuinely in your way, not merely when you have outgrown the logo. Concretely: your pricing is logic Shopify cannot express — contract pricing per customer, deep B2B tiers, quote-to-order, live freight rates or made-to-order configurators. You are stacking five-plus paid apps and still bridging gaps by hand. You need an integration — ERP, inventory, an in-house system — that no app cleanly covers. Your catalogue or checkout keeps breaking the theme system. Or commerce is one feature inside a larger custom application, not the whole business. If two or more of these are true and permanent, custom earns its cost.
Choose Shopify (and Shopify apps) when…
Choose Shopify when it already does the job — which, honestly, is most of the time. Your catalogue and pricing fit a fairly standard model; a theme plus a handful of reputable apps covers your needs; you want to be selling now, not in a few months; and you would rather Shopify carry hosting, security, payments and PCI than own all of that yourself. Early-stage stores, straightforward retail, and anyone whose edge is product and marketing rather than bespoke workflow are almost always better served staying put. Staying on Shopify is not settling — for a large share of NZ stores it is simply the correct engineering decision.
Reviewed July 2026 · written by Isaac Vicliph, Tally Digital
Questions
Frequently asked
Shopify vs custom ecommerce — which is better?
Neither in the abstract; it depends on how far your needs sit from what Shopify already does well. For most stores Shopify plus a few apps is better, because it is cheaper, faster and maintained for you. Custom is better only when the platform genuinely blocks something central — pricing logic, a deep integration, a checkout or catalogue the theme system cannot handle. The useful question is not which is superior, but which one fits your business.
When should I leave Shopify for a custom build?
When Shopify stops being a tool and starts being a constraint. The signs: pricing or workflow logic the platform cannot express, a stack of paid apps plus manual workarounds filling the gaps, an integration no app cleanly reaches, or a customer experience the theme system caps. One frustration is not a reason to migrate. Two or more that are permanent and central to how you make money usually are.
Which is cheaper, Shopify or a custom ecommerce solution?
Shopify, almost always, on day one — a theme and a few apps for a predictable monthly fee is far less up front than building. Custom can be cheaper over several years, but only if you genuinely have needs that force you to stack apps and pay people to work around limits; those costs compound while an owned system does not. If Shopify comfortably does the job, it is also the cheaper job. Custom is not a saving unless the platform is actively costing you.
How much does a custom ecommerce build cost in New Zealand?
It depends entirely on scope — a focused custom checkout or integration is a very different job from a full bespoke storefront with B2B pricing and ERP sync, so a blanket figure would be misleading. Tally scopes your actual requirements first, then gives you a fixed price for that scope before any work starts. Tell me what Shopify can’t do for you and you’ll get a firm number back, not an open-ended estimate.
Can I keep Shopify for some things and go custom for others?
Often that is the best answer. You might keep Shopify for the storefront and checkout it does well, and build one custom piece — a pricing engine, a customer portal, an ERP integration — that handles the part it cannot, wired together so data flows on its own. A full migration is not the only option, and it is frequently not the right one. The goal is to fix the specific limitation, not to rebuild what already works.
Is Shopify bad for SEO or performance compared to custom?
No — Shopify is perfectly capable on both, and a poorly built custom site can easily be worse. Shopify gives you fast global hosting and clean fundamentals out of the box. A custom build can go further — full control of rendering, page structure and Core Web Vitals — but that is only an advantage if it is built well and you have a real reason to need the extra headroom. SEO on its own is rarely a good reason to leave Shopify.
Do I own my store if it is built on Shopify?
You own your products, content and customer list, and you can export them. You do not own the platform: your theme, app configuration and checkout logic live inside Shopify, so moving off means rebuilding those parts. That is a reasonable trade for everything Shopify maintains on your behalf. A custom-built solution is the opposite — you own the code, data and infrastructure outright, at the cost of being responsible for maintaining them.
Does Tally only build custom, or will you tell me to stay on Shopify?
I’ll tell you to stay on Shopify whenever it’s the right call — which is often. Tally Digital is a custom-software studio, not a marketing agency, and there is no upside in selling you a build you don’t need; a custom store you never required is a liability, not a win. If Shopify plus the right apps solves your problem, that is the advice you’ll get. I only recommend custom when the platform is genuinely in the way.
Tell me what Shopify cannot do for you.
Not sure whether you have genuinely outgrown Shopify or just hit a bad week? Tell me the specific thing the platform will not do — the pricing rule, the integration, the workaround your team keeps redoing — and I will give you a straight read on whether a custom build is worth it, or whether you are better off staying put.