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🛒 Shopify Apps · Curated Stack

What Apps Does Every Shopify Store Need? – The Stack

With 13,000+ apps on the Shopify App Store, most stores install too many and benefit from too few. This is the lean, high-impact stack that moves the four levers that matter – conversion, AOV, retention, and speed.

⏱ 8 min read· 📅 Updated · Shopify Apps · Tech Stack · Store Optimisation
Apps
⚠️
20+
Apps is where most stores slow down and lose conversion
8–12
Apps is the sweet spot for most profitable Shopify stores
💰
$42
Return per $1 spent on email marketing – highest ROI app category
🎯

Every app you install must earn its place – and its cost

The question is never “what apps exist?” It’s “what problem does this solve and can I measure the result?” 8 to 12 apps that each drive measurable impact beats 30 apps that slow your store and overlap each other.

🐌
App Bloat
Kills Speed. Speed Kills Conversion.
Every app adds code to your store. Too many apps slow your load time – and a 1-second delay costs up to 7% in conversions.
📊
Measure It
If You Can’t Measure It, Remove It
Every app should have a measurable impact – email captured, AOV lifted, cart recovered, review collected. If it doesn’t, it’s dead weight.
🏗️
Stack in Order
Foundation First, Then Growth
Install email/SMS and reviews before loyalty or upsells. You need customers before you can retain them.
Shopify Apps Must-Have Shopify Apps Shopify Email Marketing Shopify Conversion Apps Shopify Reviews Apps Shopify App Stack

You opened Shopify’s App Store once. Now you have 27 apps installed and your store loads in 6 seconds. Sound familiar? Choosing the wrong stack can spell disaster for your Shopify store. The right apps compound your growth. The wrong ones drain your budget, slow your site, and overlap each other in ways you never notice until revenue starts slipping. This guide cuts through 13,000+ options and gives you the lean, measurable stack that every serious Shopify store needs, with the best tool in each category, what to expect from it, and exactly when to install it.

13,000+Apps on the Shopify App Store
$42 ROIPer $1 spent on email marketing – highest of any channel
19.3%Revenue lift from simply adding a wishlist feature
10–15%Conversion lift from live chat answering pre-purchase questions

The Golden Rule Before You Install Anything

Ask three questions: What problem does this solve? How will I measure whether it’s working? Does another app I already have do this? 8 to 15 apps is a good guideline for most stores. With more than 20 apps, a critical review is recommended to see if all are really actively used and provide value. Every new app adds JavaScript to your storefront – and every millisecond of load time costs conversions.

Category 01 · Foundation

📧 Email and SMS Marketing

Email and SMS are the highest-ROI marketing channels available to any Shopify store. Email marketing generates 25 to 35% of total DTC revenue on average, with $36 to $42 return per $1 spent. Your email list is the only marketing asset you fully own – unlike social media followers or ad audiences, it cannot be taken away by an algorithm change. Install this before anything else.

📧
Klaviyo
Must Have Freemium
The gold standard for Shopify email and SMS. Connects directly with your store and segments buyers by behaviour – what they viewed, clicked, bought, or abandoned. Abandoned cart, welcome series, post-purchase, and win-back flows all built in. Nothing else competes at scale.
Email drives 25–35% of DTC revenue when flows are set up correctly
Free to $45/moUp to 250 contacts free
★★★★★
💬
Shopify Email
Free Alternative
Shopify’s native email tool. Free up to 10,000 emails per month. Good for stores just starting out – covers basic campaign sending and simple automations. Upgrade to Klaviyo when your list exceeds 250 contacts and you need advanced segmentation and multi-step flows.
Free entry point – covers campaigns and basic abandoned cart
FreeUp to 10k emails/mo
★★★★☆
Category 02 · Foundation

⭐ Reviews and Social Proof

First-time visitors to your store do not trust you yet. Reviews are the fastest way to build that trust. A product page with 50 genuine reviews converts at a dramatically higher rate than the identical page with zero. Install a review app before you run your first ad – otherwise you are paying for traffic to a page with no credibility.

Judge.me
Must Have Freemium
The most value-for-money reviews app on Shopify. Collects photo and video reviews via automated email sequences, displays star ratings in Google search snippets, and integrates with Klaviyo. The free plan covers almost everything most stores need. The $15/month plan adds unlimited review requests and Q&A.
Star ratings in Google search results lift organic click-through rate by 10–20%
Free / $15/moBest free reviews app
★★★★★
🏆
Yotpo
More powerful than Judge.me for stores that need deep loyalty integration, SMS review requests, and advanced UGC display. Worth the premium cost at scale – the added social proof features and loyalty combination make it a revenue driver at higher revenue levels.
UGC display and loyalty together improve repeat purchase rate significantly
From $79/moScale tier
★★★★☆
🛒 Shopify Store Management

Not sure which apps to keep and which to cut?

Our Shopify store management service audits your full app stack – removing what’s slowing you down, keeping what’s generating measurable revenue, and filling the gaps that are costing you sales.

Category 03 · Conversion

🎯 Conversion Rate Optimisation

The average Shopify store converts 1 to 3% of visitors. Everything in this category helps move that number – which means more revenue from exactly the same traffic. An email pop-up alone is the single highest-impact install for most new stores because your email list is the foundation all retention flows are built on.

🎯
Klaviyo Pop-ups
Must Have Included in Klaviyo
If you already have Klaviyo for email, use its built-in pop-up builder instead of installing a separate app. Captures email and phone number on exit intent or time delay – directly into your Klaviyo list where flows trigger immediately. No extra app needed, no extra load time.
Email capture pop-ups grow lists 30–50% faster than embedded forms alone
IncludedWith Klaviyo
★★★★★
🛒
Shopify Markets / Shop Pay
Built In Free
Shop Pay – Shopify’s accelerated checkout – converts 91% better than standard checkout for returning buyers. Enable it in your Shopify settings immediately. It fills payment details in one tap for any buyer who has used Shop Pay before, dramatically reducing checkout abandonment on mobile.
91% higher conversion rate vs standard checkout for returning buyers
FreeShopify native
★★★★★
🔥
Hotjar / Microsoft Clarity
Free
Heatmaps and session recordings show you exactly where buyers click, scroll, and drop off on your store. You cannot fix what you cannot see. Microsoft Clarity is completely free and shows you which product page sections buyers actually read versus scroll past – invaluable for CRO.
Session recordings identify conversion blockers invisible in analytics data
FreeClarity is unlimited
★★★★☆
Category 04 · Revenue Growth

🛒 Average Order Value – Upsells and Bundles

Once a buyer decides to purchase, they are in the highest-trust moment of their visit. This is the exact point to offer more – a complementary product, a volume discount, or a premium version. Done right, upsells feel helpful, not pushy. Done wrong, they feel aggressive and kill the original sale.

⬆️
Rebuy Smart Cart
Top Pick
AI-powered upsells, cross-sells, and a smart cart drawer that suggests relevant products as buyers add items. Post-purchase one-click upsells are where Rebuy generates the most revenue – buyers see a complementary offer after checkout completes, with one-tap add-on that uses their saved payment details.
Post-purchase upsells add 10–15% revenue on top of completed orders
From $99/moROI-positive fast
★★★★★
📦
Frequently Bought Together
Freemium
Amazon-style “frequently bought together” product bundles on your product pages. Simple, effective, and easy to set up. A lower-cost alternative to Rebuy for stores in earlier stages – the free plan covers the basics and lifts AOV without ongoing monthly fees that need to be justified.
Bundle displays lift average order value 8–18% depending on category
Free / $19/moBudget-friendly
★★★★☆
🛒 Shopify Solutions

Want a Shopify store built with the right apps from day one?

Our Shopify solutions service sets up your store with a lean, high-performing app stack – configured correctly so each one integrates with the others and drives measurable results from launch.

Category 05 · Organic Growth

🔍 SEO and Site Speed

Most Shopify themes have acceptable SEO out of the box – but an SEO app becomes genuinely useful as your product catalogue grows. For stores with 50+ products, manually managing meta descriptions, image alt text, and structured data becomes a major time sink. An SEO app automates what you would otherwise miss.

🔍
Plug In SEO
Top Pick Freemium
Audits your store for SEO issues and fixes them at scale – image alt text, meta titles, JSON-LD structured data, broken links, and page speed recommendations. The free plan shows you what is wrong. The paid plan fixes it automatically across your full catalogue. Expected impact: 20 to 50% increase in organic search traffic over 6 to 12 months.
20–50% organic traffic increase over 6–12 months when implemented correctly
Free / $29/moStrong free tier
★★★★☆
TinyIMG
Freemium
Automatically compresses and converts your product images to WebP format – the biggest single cause of slow Shopify stores is uncompressed images. Compressing 200 product images manually would take hours. TinyIMG does it automatically when you upload. Often recovers 1 to 2 seconds of page load time on its own.
Page speed improvement of 1–2 seconds directly lifts mobile conversion rate
Free / $9/moHigh impact, low cost
★★★★★

💡 SEO goes beyond apps: Apps optimise your technical foundation. But ranking requires content – keyword-targeted product descriptions and blog posts that answer real buyer questions. Our SEO and optimisation service handles both the technical layer and the content strategy together.

Category 06 · Operations

🚚 Shipping and Order Tracking

Shipping transparency is a trust signal. A tracking link reduces customer service inquiries by 40 to 60% and makes buyers feel confident during the delivery window – not anxious. The best tracking apps turn what could be an anxious waiting period into a branded brand touchpoint.

📍
Aftership Tracking
Top Pick Freemium
Branded order tracking page and automated shipping notifications via email and SMS. Buyers can check their order status without contacting support – dramatically cutting your support volume. The branded tracking page also shows product recommendations, which generates measurable additional revenue from post-purchase visitors.
40–60% fewer “where is my order?” support tickets immediately
Free / $23/mo50 shipments free
★★★★★
Category 07 · Support

💬 Customer Support

Live chat increases conversion rates by 10 to 15% by answering pre-purchase questions in real time. The biggest conversion blocker for new-to-brand buyers is uncertainty. A question answered in under 2 minutes often converts someone who was about to leave. And it costs nothing if you use Shopify’s native tool.

💬
Shopify Inbox
Must Have Free
Free, built-in live chat from Shopify. Shows which products the visitor is currently viewing, lets you send discount codes mid-conversation, and handles messages from Instagram, Facebook, and your store in one inbox. AI-suggested replies handle common questions automatically. No reason not to have this active on every Shopify store.
10–15% conversion lift from answered pre-purchase questions in real time
FreeAlways free
★★★★☆
Category 08 · Intelligence

📊 Analytics and Attribution

You cannot improve what you cannot measure. Shopify’s native analytics show you revenue and orders – but not why buyers converted, which traffic source actually drives profit (not just clicks), or which products are worth doubling down on. A dedicated analytics app turns data into decisions.

📊
Triple Whale
The leading attribution and analytics platform for Shopify stores running paid ads. Shows your true ROAS by channel – factoring in returning customers, delayed conversions, and blended attribution that Meta and Google cannot self-report accurately. Essential for any store spending $5,000+ per month on ads who wants to know which campaigns are actually profitable.
Correctly attributed ROAS data – stops you scaling campaigns that are actually losing money
From $129/moFor scaling stores
★★★★★
📈
Google Analytics 4
Free
Free and essential for any store regardless of stage. GA4’s eCommerce tracking shows buyer journeys, traffic source quality, product performance, and funnel drop-off. Shopify’s native integration makes setup straightforward. Before spending anything on paid analytics tools, make sure GA4 is configured correctly – most stores have it installed but not configured to track eCommerce events properly.
Free baseline for all traffic, behaviour, and conversion data – install first
FreeAlways free
★★★★☆

📋 The Complete Recommended Stack – At a Glance

Here is the full lean stack – every app, its category, recommended tool, approximate cost, and when to install it.

App Category Best Tool Cost Install When
📧 Email and SMS Klaviyo Free → $45/mo Day 1
⭐ Reviews Judge.me Free / $15/mo Day 1
🛒 Fast Checkout Shop Pay (native) Free Day 1
🔥 Heatmaps Microsoft Clarity Free Day 1
💬 Live Chat Shopify Inbox Free Day 1
📊 Analytics Google Analytics 4 Free Day 1
⚡ Image Speed TinyIMG Free / $9/mo Month 1
🔍 SEO Plug In SEO Free / $29/mo Month 1
📍 Order Tracking Aftership Free / $23/mo Month 1
⬆️ Upsells / AOV Rebuy or FBT $19–$99/mo Month 2–3
📊 Paid Attribution Triple Whale $129+/mo At $5k+/mo ad spend

⚠️ Do a speed test after every install. Go to PageSpeed Insights and test your homepage before and after adding a new app. If your score drops significantly, the app may not be worth it. Some apps are poorly coded and add several seconds of load time for features that generate minimal revenue.

📱 Social Media Marketing

Great apps need great traffic to work on

Our social media management service drives targeted traffic to your Shopify store – the kind that actually converts through the funnel your apps are now optimised to capture and retain.

❓ Quick Questions

How many Shopify apps should I have?
8 to 15 apps is a good guideline for most stores. With more than 20 apps, a critical review is recommended to see if all are really actively used and provide value. The number matters less than the impact. A store with 8 perfectly configured apps generating measurable results outperforms a store with 30 apps that overlap, conflict, and slow the site. Do an app audit every 3 months – if you cannot immediately name the measurable contribution of an app, remove it.
Do Shopify apps slow down my store?
Yes – every app adds JavaScript and CSS to your storefront. Some are very lightweight. Others add seconds of load time. The impact varies hugely between apps. Always check your PageSpeed Insights score before and after installing any app. A 1-second increase in load time can reduce conversions by up to 7%. Use tools like Shopify’s App Performance dashboard to see which apps are adding the most load time to your store.
What is the single most important Shopify app?
Klaviyo – or any email and SMS marketing platform. Email marketing generates 25 to 35% of total DTC revenue on average, with $36 to $42 return per $1 spent. Your email list is the only marketing asset you fully own. Social media followings disappear when algorithms change. Ad audiences are rented. Your email list is yours permanently. Every other app on this list amplifies what you can do with it.
Do I need to pay for apps to run a profitable Shopify store?
No – you can run a very effective store on the free stack: Klaviyo (free to 250 contacts), Judge.me free, Shop Pay (native), Shopify Inbox (free), Microsoft Clarity (free), Google Analytics 4 (free), and TinyIMG free tier. That covers email, reviews, fast checkout, live chat, heatmaps, speed, and analytics. Most stores should start entirely on the free stack and only upgrade individual tools when the free tier limits become a genuine constraint.
When should I add a loyalty or subscription app?
Add a loyalty app when you have a meaningful repeat customer base to reward – typically when you are generating 100+ orders per month with a repeat purchase rate above 20%. Add a subscription app only if your product is genuinely consumable or replenishable and buyers have a natural reason to reorder. Installing these too early creates maintenance overhead without enough volume to justify the cost. Get email, reviews, and upsells working first.

Related topics

best shopify apps must have shopify apps shopify app stack for new stores klaviyo shopify setup shopify reviews app best shopify upsell apps shopify speed optimisation apps shopify seo apps shopify inbox review how many shopify apps should i have
SL
Shark Labs Global – Shopify Growth Team
Shopify App Stack and Store Optimisation Specialists · sharklabsglobal.com

We audit and rebuild Shopify app stacks for brands every week – removing what’s slowing stores down and configuring what drives measurable revenue. If your store feels bloated or you want a clean, high-performing setup, book a free app stack audit →