Top 10 Essential Shopify Apps for Your Store

One of the main assets of the Shopify e-commerce solution is its App Store: a library of over 8,000 applications that allow you to expand your site's functional coverage and accelerate growth. Its thematic search engine helps you easily navigate and find the right app for your marketing, logistics, CRM, or UX needs.

Advantages of Shopify Apps

• The almost instant ability to install and test new features;
• The low cost of a monthly app compared to ad-hoc development (often with a 14-day free trial);
• The large number of available applications to meet the same need — practical for comparison and A/B testing;
• The quality of publishers' customer service: with a high volume of positive reviews being key in the App Store, publishers focus on responsive and expert support.

Points of vigilance: performance & code hygiene

• Some apps are "heavier" (JavaScript, multiple widgets) and can impact speed. Install moderately and try not to exceed ~10 active apps.
• Uninstalling an app may leave residual code in the theme. Remember to clean snippets/scripts and run a performance audit again.

As a Shopify agency, we at Stellar naturally have our preferences in terms of applications and marketing tools for Shopify. Here is our updated selection of 10 essential applications to launch and scale your store on Shopify.

The 10 essential Shopify apps

1. Shopify app for translation & multilingual: Weglot

Translation is a key topic in an internationalization strategy. Two major criteria: (1) the number of target languages and (2) the management method (automatic, manual, mixed). We now recommend Weglot for quick market entry and clean international SEO:

• Rapid deployment and automatic content detection for translation;
• SEO-friendly translations (dedicated URLs, hreflang tags, indexing);
• Mixed workflow: machine + manual post-editing + professional translators if needed;
• Shopify Markets and OS 2.0 theme compatibility.

See the Weglot app

2. Shopify app for data import & export: Matrixify

A robust import/export tool is mainly used in two cases:

1. Migration (customers, orders, promo codes) from Prestashop, WooCommerce, Magento;
2. Mass update (catalog, stock, metadata).

Shopify's native exports remain limited (pages, collections, complex meta-customs). Matrixify provides:

• Reliability and speed on large volumes;
• Exemplary documentation (migrations, store cloning, mass password reset emails);
• Responsive support.

Discover the application

3. Shopify app for CRM & Email/SMS: Klaviyo

Before installing sophisticated mechanisms (referral, loyalty), start with the CRM basics. To maximize conversion and boost sales, Klaviyo remains the benchmark.

• Advanced segmentation & flows (welcome, abandoned cart, post-purchase, winback);
• Deep integration with Shopify (events, products, revenue);
• Email + SMS channel to amplify ROAS.

1. Install a sign-up pop-up (with measured incentive);
2. Deploy cart recovery (1–3 messages) and useful post-purchase.

Test Klaviyo

4. Shopify app for product videos & UGC: ReelUp

Shopify's native meta fields have evolved, and usage has shifted towards video highlights on product pages and editorial pages. ReelUp (replaces Accentuate in our selection) allows simple integration of short videos (UGC, video reviews, demonstrations) to increase engagement and conversion:

• Lightweight video widgets (galleries, carousels, story-like);
• UGC integration (creator/customer content) and social videos;
• Performance tracking (views, clicks, attributed sales).

Test ReelUp

5. Shopify app for customer reviews: Judge.me

Generalist leaders (Trustpilot, Verified Reviews) sometimes lack Shopify depth. Judge.me ticks the boxes:

• Aesthetic integration on Shopify pages;
• Adaptable style (colors, typography);
• Multiplatform social proof: text, photos & videos;
• Embedded Q&A module;
• Simple moderation + automatic reminders (native or via Klaviyo);
• Easy migration of old reviews.

Download Judge.me

6. Shopify apps for shipping & logistics

A. Simple use — Sendcloud centralizes your carriers (Mondial Relay, Colissimo, Chronopost, DPD…) and label printing:

• Connection of your carrier accounts or pre-negotiated rates;
• Adding/Testing carriers without stacking sometimes heavy official apps;
• Unified relay point map by location and carrier.

B. Advanced management — Combine Sendcloud with myFulfillment by BMS for:

• Branded returns portal;
• Enriched tracking emails (marketing widgets);
• Multi-warehouse, stock, restock alerts;
• Expirations, batches & serial numbers;
• Picking in hive, partial orders, supplier purchases.

Install Sendcloud

7. Shopify apps for chat & customer support

Live reassurance drives conversions. Two levels:

A. Simple management: Tidio
Mix bot + human responses, workflows, branded widget, iOS app, email capture and translation.

• Automations, delayed responses, free plan available.

Install Tidio

B. Advanced management: Zendesk
True multi-agent ticketing: prioritization, roles, statuses, rules and macros.

Available on the Shopify App Store.

8. Shopify "Back in Stock" notification app

Reduce customer loss when a product is out of stock with the Back in Stock button:

• Improved customer experience;
• Collection of valuable emails (for future remarketing);
• Almost "pre-order" supply forecasting.

Install Back in Stock

9. Shopify invoicing app: Sufio

Invoice generation is not native in Shopify, and automated sending is not mandatory in France. To avoid manual editing, Sufio is a safe bet:

• Customizable templates (legal notices, VAT, SIRET…);
• Display rules by market (EORI, VAT rates, addresses);
• Metafields upload into invoices;
• Automatic sending and download link in customer account.

Install Sufio

10. Shopify app for GDPR & Cookies compliance

Compliance is not glamorous but essential. A GDPR + cookie management app allows you to:

• Customize the cookie bar (branding);
• Generate a compliance page to publish in the footer;
• Manage the deletion of customer accounts according to European law.

Setup can be done in ~30 minutes.
Install the application

Recent resources & literature

• Shopify Partners – App performance & best practices (front-end performance)
• Baymard Institute – E-commerce UX Research (product pages, checkout, search)
• BuiltWith – E-commerce technology trends & app adoption

Conclusion: the best Shopify Apps… are the ones you test

These 10 applications are just a small selection of "must-haves" according to Stellar. There are many other relevant apps depending on your industry (subscription, B2B, merchandising, UGC). Our recommendation: test, measure their impact (speed, conversion, AOV, CLV), and consolidate your stack by limiting the number of active apps to preserve performance.

A question about a feature or app choice? Contact us: we help you select, configure, and optimize your apps for maximum ROI.