The 300 biggest Shopify stores run an average of 14.4 apps, and most companies use barely half the software licences they pay for. Here's how to audit your ecommerce tech stack, what to consolidate onto Shopify's free tools, and what you should never cut.
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An ecommerce tech stack is every piece of software your store runs on: the commerce platform, email and SMS, customer service, reviews, subscriptions, returns, analytics and the dozens of smaller apps in between. Most DTC brands build theirs one problem at a time, which is how a $5m to $10m brand ends up paying for three tools that do the same job and one that nobody has logged into since last spring.
The numbers back that up. A Koala Apps study of the 300 highest-traffic Shopify stores found an average of 14.4 installed apps, with 26% running 25 or more. Across all software, Zylo's 2026 SaaS Management Index found the average organisation uses only 54% of the licences it pays for. Zylo sells SaaS management software and measures larger companies, but the direction holds for ecommerce brands too.
This guide walks through what belongs in a Shopify tech stack, what the common tools cost, which jobs Shopify now does natively, and a seven-step audit to cut overlapping tools without losing functionality.
What is an ecommerce tech stack?
Shopify's guide to building an ecommerce tech stack groups the software into four layers: core infrastructure (platform, storefront, checkout and payments), operations and fulfilment (orders, inventory and warehouse), marketing and retention (email, SMS, reviews, loyalty), and customer experience and analytics (CRM, support and reporting).
That's a useful map, but for a P&L review we care about a simpler split: software that makes money, software that saves time, and software that just costs money. Every tool in the stack should land clearly in one of the first two, and the audit below is how you check.
Why audit your ecommerce tech stack now
Software is one of the few operating costs that grows quietly. In the illustrative $10m brand from our ecommerce P&L guide, software and apps came to $250,000 a year, or 2.5% of net sales. At a 25% contribution margin, every $50,000 you cut from that line is worth the same to the bottom line as $200,000 of extra revenue, and it doesn't need any ad spend.
Three things make the line creep. Many ecommerce tools price on usage, such as profiles, tickets, orders or GMV, so the bill rises with the business even when the value doesn't. Apps get installed for a one-off campaign and never removed. And as tools multiply, your data splits across them, which makes every report slower and every AI project harder, because no single tool sees the whole picture.
A typical Shopify tech stack: costs and native alternatives
Entry prices below are from each vendor's own pricing page in October 2026. Most scale with usage, so treat them as a floor, not your bill.
| Job | Common tool | Entry price | Shopify native option |
|---|---|---|---|
| Platform | Shopify | Grow $79/mo yearly; Advanced $299/mo; Plus from $2,300/mo | - |
| Email and SMS | Klaviyo | Email from $20/mo; SMS from $15/mo; scales with profiles | Shopify Messaging: 10,000 free emails a month, then $1 per 1,000 |
| Sign-up forms | Email tool or pop-up app | Varies | Shopify Forms (free) |
| Customer service | Gorgias | Priced by monthly tickets | Shopify Inbox for chat (free) |
| Automation | Zapier or custom scripts | Varies | Shopify Flow (free on all plans) |
| Bundles and upsells | Rebuy | From $25/mo per package | Shopify Bundles for fixed bundles (free) |
| Reviews | Yotpo | From $89/mo | - |
| Subscriptions | Recharge | $99/mo + 1.49% + 19¢ per transaction | - |
| Returns | Loop Returns | From $155/mo | - |
| Analytics and attribution | Triple Whale, Northbeam | Triple Whale from $219/mo; Northbeam from $1,500 | Shopify Analytics (all plans) |
Shopify's native options won't replace a specialist tool for every brand. Klaviyo's segmentation and flows go well beyond Shopify Messaging, and a busy support team will outgrow Shopify Inbox quickly. But Shopify Flow, Shopify Forms and Shopify Bundles are free and often cover what a paid app was installed to do, so check them first.
How to audit your ecommerce tech stack in seven steps
- List every tool and what you pay. Export the installed apps from your Shopify admin, then go through 12 months of card and bank statements for every software charge. The statements always find tools the app list misses, like design, project management and AI subscriptions.
- Tag each tool by job and owner. Use the jobs in the table above. If a tool has no owner, nobody will notice if it goes, which tells you something.
- Find the overlaps. Look for two or more tools doing the same job: pop-ups in your email tool and a separate pop-up app, reviews and user-generated content in two places, or three analytics tools reporting three different ROAS figures. Analytics is often the worst offender.
- Check real usage. Seats nobody logs into, features you're paying a higher tier for but don't use, and apps whose last configuration change was a year ago.
- Check the pricing mechanics. For every usage-priced tool, find the next tier threshold and what you'll pay when you cross it. Klaviyo profiles you never email and support tickets that a better FAQ would prevent both cost real money.
- Test native and consolidated replacements. Before cancelling, check whether Shopify's native tools, or a tool you already pay for, can do the job. Consolidating two tools into one you keep is usually safer than adding a new one.
- Decide keep, consolidate or cut, with dates. Record each decision, the renewal or notice date and who will migrate the data. Cut at renewal, not mid-contract, and export historical data before you switch anything off.
What not to cut
- Tools with a measurable return. If your email platform drives 25% of revenue at a strong contribution margin, it's an investment. Judge it on that, not on its price.
- Your source of truth for profit. You need one place where orders, ad spend and costs come together. Cutting it to save a subscription means going back to spreadsheets, which costs more in team hours than it saves. Our ecommerce analytics tools comparison and Triple Whale alternatives cover the options.
- Anything without a migration plan. Subscriptions and reviews hold customer data and payment tokens. Moving them badly costs more than a year of fees.
A leaner stack makes AI easier
A smaller stack is cheaper, but the bigger win is that it's simpler to connect. AI tools like Claude and ChatGPT work best when they can read your data from a few well-defined sources, and every extra tool is another connection to build and another definition of "revenue" to reconcile. That's why the data step comes first in our AI implementation plan, and why a stack audit pairs well with tracking revenue per employee: the same review that removes software often removes hours of manual work.
For the AI tools worth adding once the stack is clean, see our list of the best AI tools for ecommerce.
StoreHero brings Shopify, Meta, Google, TikTok, Klaviyo and your costs into one contribution margin view, so you can see what every channel, product and order earns without exporting from five tools. Book a demo to see it on your own store.
Key takeaways
- An ecommerce tech stack is every tool your store runs on; each one should either make money or save time.
- The 300 highest-traffic Shopify stores average 14.4 apps, and 26% run 25 or more.
- At a 25% contribution margin, cutting $50,000 of software is worth as much as $200,000 of extra revenue.
- Shopify Flow, Forms, Bundles, Inbox and 10,000 free emails a month often cover what a paid app was installed to do.
- Audit in seven steps: list, tag, find overlaps, check usage, check pricing tiers, test replacements, then cut at renewal.
- Never cut tools with a measurable return, your profit source of truth, or anything without a migration plan.
Frequently asked questions
What is an ecommerce tech stack?
It's the set of software an online store runs on: the commerce platform, checkout and payments, email and SMS, customer service, reviews, subscriptions, returns, analytics and smaller apps. Shopify groups it into core infrastructure, operations and fulfilment, marketing and retention, and customer experience and analytics.
What is the best tech stack for ecommerce?
There isn't one best stack. For most DTC brands it's Shopify plus one tool per job: an email and SMS platform, a helpdesk, reviews, subscriptions if you sell them, returns and one source of truth for profit. The best stack is the smallest one that covers your jobs without overlaps.
How often should you review your ecommerce tech stack?
Review it at least once a year and before every major renewal. A quick quarterly check of new apps, unused seats and usage-based price tiers stops costs creeping up between full audits.
How many apps does the average Shopify store use?
A Koala Apps study of the 300 highest-traffic Shopify stores in September 2026 found an average of 14.4 installed apps, a median of 14 and a maximum of 42, with 26% of stores running 25 or more.
