Two different games
Amazon and Shopify are not two versions of the same thing. They are two different businesses with different economics, and the mistake most sellers make is choosing based on habit instead of product.
Amazon is a marketplace that brings customers and takes a cut. Shopify is a platform where you bring the customers and keep more of what they spend. Both can make money; they make money in different ways.
Amazon's trade: traffic for control
- Traffic: Amazon has the buyers. A new listing gets discovery that would take years of SEO to build on your own site.
- Control: Amazon controls the page, the title rules, the review system, and the policy book. A competitor can report your listing; a policy change can rewrite your titles overnight; and the customer relationship belongs to Amazon, not you.
- Fees: referral fees plus storage and fulfilment if you use FBA. On lower-margin products, the fee stack can consume the profit.
Amazon suits products that are standard, search-driven, and bought on spec — where the customer types a keyword and buys the best-rated result. Kettles, cables, phone cases, supplements: Amazon's environment is built for these.
Shopify's trade: control for traffic
- Control: your page, your brand, your email list, your analytics. The customer relationship is an asset you own.
- Traffic: you have to earn it — SEO, ads, social, email. A new Shopify store is invisible until you drive visitors.
- Fees: platform subscription plus payment processing, but no per-sale referral fee. The economics favour products with higher margins or repeat purchase.
Shopify suits products that are differentiated, brand-led, or emotionally bought — where the story matters and a customer might buy more than once. Jewellery, premium home goods, subscriptions, products with a personality: these convert better on a page you control.
The economics on a $30 product
Illustrative arithmetic, rounded — your categories and plans differ, but the shape holds:
On Amazon: a $30 sale might carry a 15% referral fee ($4.50), FBA fulfilment around $5-6 for a moderate-size item, and storage. That is roughly $10 of fees against a $30 price — about a third of revenue — before product cost. What is left must fund advertising inside an auction where your competitors outnumber you.
On Shopify: the same $30 sale carries payment processing near $1.30 plus the monthly subscription amortised across orders — but you bought the traffic. If an ad click costs $0.80 and 2.5% of clicks buy, the acquisition cost is $32: the first sale loses money. The store only wins on repeat purchase, email, or organic rankings — which is why Shopify economics demand either margin or retention.
This is the honest version of the comparison: Amazon sells you customers; Shopify makes you buy them. Either can be cheaper, depending entirely on what your product and your margins look like.
Which one first
Three questions decide it:
- Is the buyer searching for the exact product? If yes — "750ml insulated bottle" — Amazon's search traffic is the fastest first revenue.
- Is the margin under ~40%? Then Amazon's fee stack will hurt; a higher-margin product can pay for its own traffic on Shopify.
- Will customers buy again? Repeat purchase is what makes a Shopify store compound. One-and-done commodities belong where the search traffic is.
If you have more time than money, start with Amazon: the traffic is there from day one. If you have more money than time and a genuinely differentiated product, Shopify plus paid traffic can work — with the caveat that you are effectively buying the customer list.
The copy is different on each
The listing itself follows different rulebooks, and this trips up sellers who copy-paste between them:
- Amazon copy is policy-constrained: 75-character titles, five bullets, no promotional vocabulary, no claims you cannot evidence, character limits per field.
- Shopify copy is law-constrained but format-free: advertising law still applies to your own store, but the length, structure and tone are yours. Persuasion has room — and needs it, because there is no marketplace trust to lean on.
- Reviews display differently, guarantee wording carries different obligations, and contact details are required on your own store but prohibited in marketplace listings.
Writing both well is two different disciplines — which is why copy tools that write to each channel's own field structure and limits exist.
Running both
Many sellers run both, and that is the answer more often than either/or. The same product facts can be adapted: a compliance-aware Amazon listing and a persuasion-first Shopify page. The discipline of writing both well is exactly what the two platforms demand — one is constrained by policy, the other by the need to be compelling with no marketplace safety net.
Written by Nabeel Ali
Brand designer — 12+ years, 50+ brands across 8 countries. Founder of CopyForge AI.