Ecommerce
The Shopify App Store has thousands of apps, and it's genuinely tempting to install a dozen of them in your first week. Reviews app, popup app, upsell app, loyalty app, urgency app, another popup app because the first one didn't quite do it…
Resist the urge. The best-performing stores we see don't run the most apps — they run the right apps. A tight, well-chosen stack of a handful of tools will nearly always beat fifteen half-configured ones, and it comes with a bonus: your store stays fast.
That last point matters more than most people realise. Every app usually injects its own code, and that weight quietly slows your store down — which, as we covered in how to speed up your Shopify store, costs you sales. So the goal isn't "which apps can I add?" It's "which few apps earn their place?"
Here's our pick for 2026, by the categories that actually move revenue. (App features and pricing change, so check the current listing before you commit — most of these offer free plans to start.)
New visitors trust other customers far more than they trust your marketing. Reviews are one of the highest-impact additions you can make to a product page.
Pick one and set it up properly. You don't need two review apps fighting each other.
If you only add one category to your store, make it this one. Email and SMS are where you turn one-off visitors into repeat customers, and retention is where ecommerce profit is really made.
This is also the tool you'll use to build your abandoned cart, welcome and post-purchase sequences — the automations that recover sales while you sleep. We go into those in detail in abandoned cart emails for Shopify.
Getting a customer is hard work, so it's worth increasing what each one spends. AOV apps do this through cross-sells, bundles and post-purchase offers.
A word of caution: upsells should help the customer, not badger them. Used well they lift order value; overdone, they irritate. Restraint wins.
Most first-time visitors won't buy — but if you capture their email, you get another chance through the flows above.
Keep popups tasteful. One well-timed signup prompt is persuasive; three popups stacked on top of each other just send people to the back button.
For stores where customers can reasonably buy again, a loyalty programme encourages exactly that.
Loyalty isn't right for every store, but for repeat-purchase products it's a reliable way to lift lifetime value.
If your product lends itself to repeat delivery — consumables, refills, anything people re-buy on a cycle — subscriptions turn one sale into recurring revenue.
Only add this if it genuinely fits your product. A subscription option nobody wants is just clutter.
Whatever you install, follow this: every app must earn its place, and you should test your store speed before and after adding one.
Run Google PageSpeed Insights, add the app, run it again. If a new app noticeably slows your store, ask whether the benefit is really worth the cost in load time — because a slower store converts worse, and that can quietly wipe out whatever the app was supposed to gain you.
Remove anything you're not actively using, too. Uninstalling an app doesn't always strip out the code it added, so it's worth checking that leftover weight is actually gone.
A lean, well-configured stack of the right apps will outperform a sprawling one every time — and it keeps the marbles rolling to checkout instead of getting stuck loading.
Choosing apps is the easy part. Configuring them well, keeping them from slowing your store, and making sure they actually work together is where the value is — and where a lot of stores come unstuck.
At Digital Marbles, we build and optimise Shopify stores with lean, high-performing app stacks that add revenue without adding drag. If your store feels cluttered, slow, or like it's running a dozen apps that aren't pulling their weight, we can help.
Start a project or ask us for a store review — we'll tell you what's worth keeping and what's just slowing you down.
There's no magic number, but a focused stack of the few apps you actually use will outperform a large, messy one. Many high-performing stores run a modest set of well-chosen tools rather than everything they could install. Remove anything you're not actively using.
They can. Most apps add code that loads across your store, which affects speed — and poorly built apps or too many of them make it worse. Always test your page speed before and after installing an app, and favour lightweight, well-coded ones.
It depends on your biggest gap, but a reviews app like Judge.me (which has a strong free tier) and email capture through a tool like Klaviyo are common, high-value starting points. Add to your most pressing need first rather than installing everything at once.
The ones that move revenue: reviews and social proof, email/SMS marketing, upsell and AOV tools, and email capture. Loyalty and subscriptions are valuable too, but only where they suit your product and customers.
A few good ones, configured properly. A lean stack keeps your store fast and manageable, whereas a large one adds cost, complexity and load time — often for diminishing returns.
Founder-led, straight-talking Shopify builds engineered to convert — without the big-agency price tag.
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