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11+ Best Shopify Apps to Increase Sales By 5X (Free & Paid)

Written and researched by experts at AvadaLearn more about our methodology

By Sam Nguyen

CEO Avada Commerce

Drive 20-40% of your revenue with Avada
avada email marketing

Over the years, Shopify has emerged as one of the most trusted eCommerce platforms on the market, empowering over 1 million businesses in 175 countries. Shopify reported that their users had made over $200 billion in sales. Thanks to the ease of use and thousands of available apps, you can find many tools to manage your business and increase revenue effectively.

That said, it can be challenging to find the best Shopify apps among a jungle of free and paid apps online. So, as a Shopify app developer, I took some time to research high and low in the Shopify App Store.

It is a puzzling challenge, too, since there are so many options. For example, with “email marketing”, there are already over 200 apps for many different needs. Fortunately, these apps are incredibly easy to install, so I could eventually create this list of the best Shopify apps to increase sales.

These apps will be the extended hand for your online store, providing more features in promoting your brand, selling your products, handling your inventory, showing your customers’ reviews, and ultimately reducing your work progress to manageable in just a few hours.

So, check out, the most intensive list of the must-have Shopify apps to increase your store’s sales. Many of them are even free to install, which is excellent for small businesses. Let’s get started!

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Before diving in

Shopify is a powerful platform that helps build a store, list products, receive payments, create marketing campaigns, and view in-depth analytics. The Shopify community is strong with many app developers and designers that aim to optimize a store’s function, resulting in thousands of apps on the store.

These apps or add-ons extend your Shopify store’s functionality in many aspects. They are also developed by market experts and professional companies, so you can quickly install without thinking much about the quality. However, you do have these factors to consider before selecting an app:

  • Website performance: When your site loads, all your apps load as well. This can affect the store’s loading speed and performance, so check the app’s size before purchasing and installing.

  • Compatibility: While the apps are high-quality, not all are compatible with apps from different companies. Check carefully and read customer reviews before installing, you don’t want to see your store encountering problems after buying an app.

  • Pricing: The most expensive apps may not have the best quality, and vice versa. Instead of going for the most expensive or the cheapest ones, you should think about your budget and desired features. The best apps are the ones that meet your requirements.

  • Organizing: Too many apps can be difficult to manage. Test and choose the best app for your needs. You don’t need five email marketing apps to run your campaigns.

Also, remember to check your apps’ performance compared to current technology. They should have regular updates to function properly since things change rapidly in the modern world.

Fun fact, in 2019, the average order value (AOV) for all Shopify stores was $63.50, but the average conversion rate is just around 1.7%, based on Little Data’s research. If you can push your store’s conversion rate above 2.8%, you are in the top-tier and outperform most other Shopify stores.

That can be a goal for you when installing a Shopify app to increase sales, just to keep your result more interesting. I always recommend people to list out their purposes before paying for anything, even a free Shopify app.

But, enough of that, let’s get to our list!

11 Best Shopify apps to increase sales

Here are the best Shopify apps you can install to increase sales and improve every aspect of your online store (sorted by function). You don’t need to install every one of them, you just need to see which suits your business’s goals and strategy. Here they are:

Boost Sales - Best Shopify app to increase conversion rate

AVADA Boost Sales
AVADA Boost Sales

Social proof is an essential tool for any eCommerce business to persuade customers by using third-party influence. Whether it is a testimonial from another customer or an actual photo of usage, the purpose of social proof is to show buyers that many other people have purchased and been happy with your products, and so should she or he.

As a result, social proof helps increase the conversion rate along the buying journey. Gone are the days you have to ask directly every customer for a review. Now, you have many apps to generate a social proof automatically and display them at the right moment to push a visitor to become a buyer.

AVADA Boost Sales does exactly that - a one-stop solution for social proof with sales pop, trust badge, countdown timer, and more.

The most notable feature is the sales pop that notifies real customers’ activities such as reviews, purchases, sign up, add-to-cart, view pages, etc. Via this live popup, the app helps build more trust and creates the FOMO effect to motivate visitors to purchase more.

Besides, with the app, you have:

  • Countdown timer: A promotion sale countdown timer that makes customers feel urgent to buy and boost the conversion rate.
  • Trust badges: Trust badge certificates, images, or icons that reduce customers’ concerns about security or shipment.
  • Livechat: Messenger and Whatsapp integration to provide real-time support.
  • Inactive Tab: A blinking tab title to help your website get noticed among other tabs.
  • Content Protection: Disable right-clicks action, text selection, and view source to protect your content.
  • Sticky Add-to-cart: Add products to cart and checkout faster from all product pages with just one click of a button.

The best is that this all-in-one conversion-boosting app is Free to install and use, with no fees at all for all of the above features. Just one install and your store is packed with tools to effectively convert more visitors into customers.

AVADA Email Marketing - Best Shopify app for email and SMS marketing

AVADA Email Marketing
AVADA Email Marketing

According to statistics, for 1$ spent on email marketing, you can expect an incredible ROI of $44 (which is 4400%!). Email marketing is worth investing for any type and size of business. And if you are not growing your email list and sending regular emails, you are missing out on a high rewarding channel at a little cost.

Among more than 200 apps on the Shopify app store, AVADA Email Marketing is one of the most outstanding and affordable solutions. Any merchants can use the app to leverage the power of email automation and build a long-lasting relationship with customers.

Here is how Avada Email Marketing can help:

  • Automation: Pre-made email series and workflows to follow up with your buyers at any touchpoint. Reach, engage, and convert with emails for abandoned carts, order follow-ups, upsell, cross-sell, welcoming, and more.
  • Campaigns: Stunning email templates to update all of your audience about news or promotions. You can easily edit the emails by dragging and dropping them.
  • Segmentation: Group audiences based on activities and demographics to send highly personalized and relevant email campaigns.
  • Forms: Exit-intent popups and Spin to win to deliver promo, grow your email list, reach more potential customers, and increase the conversion rate.
  • Reports: Track your email campaign performance with comprehensive and detailed reports about multiple KPIs such as sent, opened, subscribed, clicked, unsubscribe, click-through, etc.

Not only that, but AVADA Email Marketing also combines email and SMS marketing, so you can have workflows that combine these two marketing channels and enhance your messages. SMS is an unmissable form of communication and can help you grow your email list, expand your promotion’s reach, and gain more readers for your newsletter.

You can start using AVADA Email Marketing for Free with 1,000 contacts and 15,000 emails per month. With the Pro plan, you get access to advanced automation, better support, and more features starting at $9/month.

With a 4.9/5 star rating on the Shopify store, AVADA Email Marketing is a fantastic tool to start with email marketing and scale when your list grows bigger.

SEO Suite - Best Shopify app for SEO optimization


How do people find out about an online store and its products? Mostly by search.

Consumers often start their buying journey with a good old word typing on Google. If you want more traffic from a search engine like Google or Bing, you need to have a good ranking, which is influenced by SEO (Search Engine Optimization). So here comes an app to let you optimize your Shopify store’s SEO.

Shopify SEO Suite is a comprehensive SEO tool that lets you:

  • Improve your store rankings and boost conversions
  • Improve loading speed (site speed, page speed)
  • Index faster with Google for websites images, content
  • Increase traffic with standardized meta tags
  • Auto-complete structured data by Google’s rules
  • Integrate with Google Search Console

In case you don’t know, there are many aspects that can affect SEO, from the site’s loading speed to keywords used in the content. With AVADA SEO Suite, Google can understand your website better and your site can have a better browsing experience for visitors. There are many features inside the app like meta tags, site verification, redirect 404 pages, HTML sitemap, SEO analysis, and more for a whole package SEO app.

Best of all? The app is FREE, forever.

UpPromote: Affiliate & Referral - Best affiliate/ referral app to boost your sales with your affiliate marketing campaign

UpPromote: Affiliate & Referral

UpPromote is the top recommended affiliate/referral app on the Shopify App Store. This all-in-one solution allows you to easily build and manage your marketing campaign. UpPromote serves over 90 thousand users globally, generating over 375M in revenue.

UpPromote is suitable for all business sizes, with the price from FREE to $199.99/ month. Furthermore, UpPromote implements customization upon request for Enterprise customers.

  • Easy-to-use: Quick setting up process with detailed instructions. Automated processes with automated functions can help to save time, such as Auto-generated affiliate links, coupons, and auto-approval affiliates/referrals.
  • Build your affiliate team: Customizable affiliate registration form. Besides, you can create unlimited affiliate programs with different commission offers.
  • Manage your affiliate campaign: Track all referral orders and manage your affiliate performance through a reliable real-time tracking process.
  • Support to recruit affiliates by free listing on UpPromote Marketplace.
  • The customer referral feature allows customers to refer your products to their friends and family and earn a small commission.
  • Powerful management: Everything is customizable to match your brand’s needs


  • Free plan
  • Grow affiliate: $29.99/month
  • Professional: $89.99/month
  • Enterprise: $199.99/month

Outfy - Best Shopify app for social media marketing


If you want to be an omnichannel marketing business, you need an app to manage and automate all of your social media content as well as advertising. Trust me, creating content takes more time than you can imagine.

Outfy is a fantastic tool to improve your social reach, promote your brand, and boost sales. The app lets you create ads, collages, videos, GIFs, and many other types of engaging promotional content on all the most popular social media platforms. Packed with various features, Outfy can:

  • Promote products on social media platforms and reach more customers.
  • Create eye-catching content and ads
  • Curate and push posts automatically
  • Use customizable templates for engaging promotional content
  • Integrate with Facebook, Instagram, Twitter, Tumblr, Pinterest, Youtube


  • Free plan
  • Starter: $15/month
  • Pro: $30/month
  • Ultimate: $60/month

Smile.io - Best Shopify app for referral marketing


A loyalty program is a huge influence on whether a customer sticks to one brand or not. If your brand can offer personalized service and rewards for your loyal customers, they would love to engage with your brand.

With Smile.io, you can create a loyalty program on your Shopify store and gain more repeat customers who boost your conversion rate by, well, a lot. The app lets you issue reward points based on following your brand’s social media accounts, purchasing a new product, creating accounts, sharing your content on social media, and more.

More than 10+ types of rewards are available for free, but you can upgrade to give VIP customers more additional rewards and fully customize your reward program. With more than 40,000 users and 3,000 five-star reviews, Smile.io is a reliable app for you to use with any size of business.


  • Free plan: 10+ ways to reward
  • Starter: $49/month for full design customization
  • Growth: $199/month for advanced analytics and popups
  • Pro: $599/month for the VIP program, unlimited integration, and a dedicated success manager

Gorgias - Best Shopify app for customer service


Strong brands understand that one of the most efficient ways to generate new sales is keeping customers happy. Gorgias can centralize all customer service channels in one place and make your Shopify store’s support experiences satisfying and straightforward.

With the app, you can have a true all-in-one help desk experience like a professional customer support team available on phone, LiveChat, email, Facebook, etc. Automate up to 40% of your store’s support and save time from answering commonly asked questions.

Also, Gorgias can integrate with more than 20+ other apps on the Shopify app store, allowing you to add more functionality to your help desk. You don’t need to leave your help desk to help your customers, that is pretty much the point for Gorgias.


  • 7-day free trial
  • Basic plan: $60/month for 350 tickets per month
  • Pro plan: $300/month for 2000 tickets per month
  • Advanced plan: $750/month for 6000 tickets per month

PriSync - Best Shopify app for pricing


Price is a big part of any shopping experience, eCommerce or not. Your pricing strategy will depend on your promotions, tactics, and discounts, but, most of all, it will affect how your buyers view your brand compared to your competitors.

Prisync’s dynamic pricing strategy software helps you analyze competitors’ prices and apply smart pricing rules so you can always stay competitive with a good profit margin. This small app can replace hundreds of hours of manpower and a giant spreadsheet to keep up with the market’s prices.

Prisync’s special features include tracking an unlimited number of competitors, updating prices daily up to 4 times, repricing products dynamically, and more.


  • 14-day free trial
  • Professional: $59/month for up to 100 products
  • Premium: $129/month for up to 1000 products
  • Platinum: $229/month for up to 5000 products

Easyship - Best Shopify app for shipping


Easyship is an all-in-one shipping Shopify app that helps you reach customers worldwide with 250+ courier services, lower shipping costs, and a higher conversion rate. Over 100,000 retailers have used Easyship to save money and time for their delivery.

When you install Easyship, you get access to pre-negotiated shipping solutions that couriers around the world provide through just one account. It also has an intuitive dashboard to manage orders, includes shipping labels, store product dimensions, access invoices, and receipts, generates return orders, and more.


Free to install, but external charges based on countries may apply.

Back in Stock - Best Shopify app for inventory

Back in Stock
Back in Stock

Sold out of your best-selling products? Back in Stock will help you not lose sales to notify signed-up customers when a product they want is back in store. Once it is available, they get an automatic email notification. The higher-priced plan also gives you the option to notify customers with SMS, which has a very high open rate to increase conversions.

This app helps you conveniently understand which products are most popular or not so you can manage stock levels. You can customize every aspect of the app to meet your needs. At the moment, the app is the #1 app appearing on the Shopify app store in the Inventory Management section.

Back in Stock has a 4.9-star rating and you can make your potential customers very happy, what is not to love?


  • 14-day free trial
  • Free: 5 email campaign notifications
  • Startup: $19/month for 100 SMS and email campaign notifications
  • Small Store: $39/month for 500 SMS and email campaign notifications
  • Medium Store: $59/month for 5,000 SMS and email campaign notifications
  • Large Store: &79/month for 50,000 SMS and email campaign notifications

Spocket - Best Shopify app for dropshipping


While dropshipping from China has become a bit saturated and overused, you can always try dropshipping from manufacturers in the US and EU with Spocket. It is a dropshipping marketplace that is easy to use and updated regularly. You have reliable and fast shipping for hundreds of thousands of products from 20,000+ reliable suppliers.

By using Spocket, you can target the high-profit market of the EU and the US with flat-rate shipping, one-click order fulfillment, and real-time order tracking. For customers with high demand in these regions, these are all big-time pleasers. If something goes wrong with the order, Sprocket’s dedicated support team will help you resolve the problem quickly and painlessly.

The pricing models for Spocket are highly affordable as well, but you will have to pay some transaction fees, which is understandable to maintain warehouses in the US or the EU.


  • Free: just to browse Spocket’s Catalogue of products.
  • Starter: $24/month for 25 unique products and email support.
  • Pro: $49/month for 250 unique products, 25 premium products, and chat support
  • Empire: $99/month for 10,000 unique products, 10,000 premium products, and chat support

PayWhirl Recurring Payments - Best Shopify app for payment

PayWhirl Recurring Payments
PayWhirl Recurring Payments

Not all eCommerce stores sell physical products, you can also make money online by selling services or offer a subscription model for your items. PayWhirl Recurring Payments lets you easily create, manage, and sell many types of recurring payment plans.

With the app, customers can create, manage their own account details, update their credit card details, add/remove payment plans, and purchase different plans of subscription. With this system in place, your customers can have full control over their payments and don’t have to contact your business, saving you time in customer support.

With a reliable cloud-based and scalable infrastructure, PayWhirl Recurring Payments can turn your business into a subscription machine while you focus on making customers pay repeatedly.


  • 14-day free trial
  • Starter: Free to install with a 3% transaction fee
  • Pro: $9/month with 2% transaction fee
  • Plus: $49/month with a 1% transaction fee
  • Ultimate: $249/month with 0.5% transaction fee

Notable Shopify apps to check out

Although the apps above should be enough to run your Shopify store, there are some notable apps that I would recommend as well. They would add functions that suit certain types of businesses, and make sure you have the necessary tools to run smoothly.

  • Shopify PDF Invoice - An official AVADA app that lets you create unlimited free PDF invoice templates for easier administration.

  • Shopify Size Chart - Unlimited and free product size charts to help customers buy clothing items that fit them perfectly. There are 11 size chart templates available, and it is free to use.

  • Shopify Instagram Feed - A shoppable Instagram feed that updates automatically on your website. You can show off your Instagram content the way you want, making it blend beautifully with your store’s design.

  • Kit - An AI-powered app that helps you run Facebook and Instagram ads by simply chatting with Kit. You won’t need to hire an expensive expert or spend a lot of time learning about digital marketing by yourself.

  • Split - An app that makes it easier for buyers to split payments between numerous people or different credit cards. If you sell high-value items, Split is perfect to make your product more affordable.

  • Doofinder - A powerful app that improves the search experience on your store so customers can quickly find what they are looking for, as well as increase sales by personalized search results.

  • Bold Discounts - An app to run daily discounts or scheduled sales on selected products. Think of your store having a flash sale section like Amazon.

  • Pre-Order Manager - An app that allows customers to pre-order items while you are restocking items, letting you collect revenue even when you are out of stock.

  • Oberlo - An Aliexpress dropshipping app from Shopify that lets you choose and add products to your Shopify store with just a couple of clicks. You also have automatic order fulfillment, inventory management, and product customization.


And that is all the best Shopify apps to increase sales for your store. With each app having different usage, I’m sure you could find something to extend the functionality of your eCommerce business and provide a fantastic shopping experience.

Of course, there would be many more apps on the market that you can try out. Remember to consider your business’s strategy and budget before trying, as well as seeing reviews from other users.

Do you have any other Shopify app suggestions that are skyrocketing your sales? Feel free to drop some app names in the comment section!

Sam Nguyen is the CEO and founder of Avada Commerce, an e-commerce solution provider headquartered in Singapore. He is an expert on the Shopify e-commerce platform for online stores and retail point-of-sale systems. Sam loves talking about e-commerce and he aims to help over a million online businesses grow and thrive.