best shopify apps for sales and marketing

Updated: September 4, 2019

Speed Boostr is a Shopify optimization agency, but we’re also ecommerce nerds! We love experimenting and finding great Shopify apps, especially when it comes to automating sales and marketing.

After working with hundreds of Shopify stores and testing countless ecommerce marketing techniques, we’ve compiled a master list of the best Shopify apps in key categories.


These apps are all proven positive ROI generators, boosting sales and saving time. Scroll down to see the key features and descriptions of each app.

Quick links to get the best apps


Performance optimization helps increase SEO, engagement, traffic, and conversion rate, contributing to increased revenue. Optimization often needs expert analysis and specific code changes, but apps help can automate some tasks.

Crush Pics

image optimization app

Crush Pics automatically compresses your website images to make your site load faster.

Key Features:

  • Automatically compresses your product, asset, collection, and featured article images
  • No quality loss if you choose “lossless” compression
  • Faster website = higher conversions, SEO rankings, engagement, traffic, and revenue

Crush Pics is a quick win to make your site faster, improve your SEO rankings, and increase engagement and conversion rate.

Images are generally the heaviest part of a web page. You can manually compress them (boring), or you can just install Crush Pics to automatically handle it for you (and any future images you upload).

There’s a free version, but for most stores it’s worth it go with a paid plan ($5/mo) to compress more images automatically.

Bonus feature: You can also mass update your image “alt” attributes and file names to make them more SEO friendly (available on paid plans).

A faster website improves most of your key metrics, so investing in improving your speed is an easy positive ROI.

If you want a tutorial for setting this up, check out our Shopify image optimization guide.

Get Crush Pics here

AMP by Shop Sheriff

best shopify google amp app - shop sheriff

AMP (Accelerated Mobile Pages) is a Google backed project that makes mobile pages load faster.

When your pages are formatted with AMP’s code guidelines, they get cached by Google servers and pre-load during search results. This makes your mobile pages load instantly from Google search.

AMP by Shop Sheriff automates this process and has a visual editor to customize your pages.

Key Features:

  • Instant loading mobile pages
  • Lightning bolt badge in mobile Google search results
  • Studies show increase in SEO, engagement, and conversions

I wrote an in depth guide here: Shopify AMP Guide.

The app is pretty easy to set up, has a free trial, and doesn’t modify your existing theme/pages, so feel free to check it out and experiment.

Get AMP here


Automation is probably my favorite topic in ecommerce marketing. There’s a beauty in setting up a good foundation and generating automated sales forever.


klaviyo best email marketing app in shopify app store

Klaviyo focuses on smart email automated marketing for eCommerce stores.

Key Features:

  • Amazing automated flows, templates, and segmenting
  • Insane amounts of analytics and data tracking
  • Easy to use, and lots of pre-set flows to setup

I just started using Klaviyo this year and maaaaan I was blown away within 5 minutes of installing the app. Here’s a post about my experience: automated email marketing with Klaviyo.

If you like automated marketing, you’ll love Klaviyo.

The ease of segmenting and automation is incredible.

Multi-sequence abandoned cart emails are nice (and included), but what I think is really cool are things like advanced tagging and segmenting for delivering specific email sequences to customers that purchased specific products or from specific collections (great for cross selling).

You can send re-engagement campaigns too… example “If customer purchased something in the last year but hasn’t purchased (or visited site, opened email, etc) in the last 6 months, send a special offer”.

Those are rough examples. If you want help setting up detailed flows like this, we can help you out just give us a shout.

Price: Starts Free then scales up based on subscribers

*It’s more expensive than other email apps I’ve used, but if you set up the automated flows you should have no problem stacking a nice ROI.

Get Klaviyo here

Shoelace – Intelligent Instagram and Facebook retargeting on autopilot.

facebook remarketing stats for shopify

That’s a screenshot of a store I worked on getting about 10,000 monthly sessions.

Key Features:

  • Automated way way to increase sales, conversion rate, and customers
  • Creates sophisticated “customer journeys” and gets smarter over time
  • Onboarding specialist + quarterly reviews make sure your ads are dialed in

Remarketing / retargeting is key because most customers need to interact with your brand multiple times before purchasing, and most visitors won’t convert the first time. Remarketing solves this by reminding about you after they leave your site (usually on Facebook, Instagram, or the web).

Shoelace works best if you’re doing at least a few thousand $$$ in monthly sales. If you’re not sure whether your store is at the level that would get a positive ROI contact us we’ll check it out and give our best advice.

Price: $199/mo

Get Shoelace here

You don’t need an app for retargeting, it just helps automate some processes. If you need help setting up a good retargeting system contact us — P.S. everyone should have a good retargeting system 🧙‍♂️

Klickly – Automated inbound traffic

Klickly easy traffic generator

Klickly might be my favorite inbound traffic app… and it’s free!

It’s like having a PPC manager steadily creating ads, but with no ad spend and you only pay a commission on conversions like referral marketing. Nice!

Key Features:

  • Commission based ads (no app fee, no ad spend)
  • Runs on autopilot
  • Guaranteed +ROI for any sized business

I experimented with Klickly and shared a 30 day snapshot here, getting 3K clicks in a month and generating a 3.6 ROAS.

Price: commission based

Get Klickly here

I believe Klickly is only available for USA advertising, but that might change as they expand.


Get people interacting more with your site and closer to making a purchase. Increased engagement and page views also helps your SEO.

Smile Rewards & Loyalty Program

This powerful yet easy to use rewards program app generates more repeat customers, brand loyalty, and customer referrals. It also has over 3,000 reviews in the Shopify app store.

Shopify rewards app by Smile

Key Features:

  • Easy to setup rewards and referrals program, runs on autopilot
  • Create engagement actions to earn points and rewards (discounts, free shipping)
  • Create VIP tiers to encourage brand loyalty and give special bonuses

Examples of how customers can earn points (these are customizable):

  • Signing up for the program
  • Follow your Instagram and Facebook, share on Facebook
  • Review a product
  • Celebrate a birthday 🎉
  • Refer a friend (both friend and referrer get discount)

Side Bonus #1: Capturing more first time visitors. When you have Smile, it creates an icon on your site that people can click to see a popup of your rewards program. Set it so people earn points by signing up and you’ll captured new potential customers (and email address) that are interested in your brand.

Side Bonus #2: Be a cool brand. Creating more engagement, rewarding your loyal customers, and providing referral incentives all strengthen your brand’s community.

Get Smile here


People like seeing other people using your product. Social proof is a great way to increase your conversions while building community around your brand. is the best reviews app on the market. It’s packed with features, built with performance in mind, and easy to set up automated systems.

This is a must have app for every Shopify store.

Key Features:

  • Automatic review requests, featured review carousels, social sharing
  • Engagement features like questions, discount incentives, picture uploads
  • Includes SEO rich snippets so your ratings show up in Google search results

Judge.Me has too many features to list – it’s a super powerful reviews+ app that increases engagement and breathes life into your store with reviews and questions/answer features.

I’ve personally been watching this app grow over the last few years from a small reviews app to a feature-packed, speed optimized, well designed go-to Shopify app.

It’s insanely low priced, has great support, and you can easily import reviews from anywhere.

Price: Free for basic, $15/mo for all the goodies.

Get Judge.Me here

Covet Pics

Covet Pics is an Instagram and shoppable gallery app for your Shopify store. It’s also powerful enough to automatically show Instagram images from your customers on your product pages.

Key Features:

  • Automatically pull in Instagram feeds into a cool widget
  • Product tagging and shoppable Instagram widgets
  • Add social proof by showing customer pics with your products

An A/B test study from Taktical Growth Hacks showed that product pages with customer Instagram photos showed a 24% increase in people reaching checkout.

Covet Pics is the easiest way to set up customer IG photos on your product pages.

To see our full guide on Covet Pics, you can read our Best Instagram App for Shopify post.

Price: Free for basic, $29.99+ to get the full features with product galleries.

Get Covet Pics here


Refersion is an easy to set up full-featured affiliate marketing platform.

Referral programs give you social proof, backlinks (great for SEO), and no-risk referral traffic. They also build community by connecting with people that vibe with your brand.

Key Features:

  • Create an army of affiliates promoting your brand and linking to your website
  • Create unique discount codes for affiliate promotion without links (for Instagram influencers, for example)
  • Analytics and dashboard software for you and your affiliates

Set up an affiliate program easily with Refersion, then start connecting with affiliates that vibe with your brand and products to create an automated inbound marketing channel.

Price: $89/mo flat rate (unlimited affiliates and no % fees)

Get Refersion here

To further automate this, scroll to section 2 in this automated marketing strategy post to see how I use Refersion with a VA to find influencers and shopping lists, then invite them to the program.


Your online store is the home base of your ecommerce business. It’s easy to overlook security, until something happens that costs you time, money, or reputation.

Protect your investment and back up ALL your store’s data.


backup app for shopify - rewind

I consider Rewind a key Shopify app for stores doing any volume.

Rewind backs up your store’s data every single day:

  • Products and Product Images
  • Inventory, Customers
  • Orders, Collections
  • Blogs and Blog Posts
  • Pages
  • Themes and Theme Files
  • Menu Navigation
  • Store Policies
  • Locations
  • Shipping Zones
  • Gift Cards
  • Customer Saved Searches
  • Metadata (for Enterprise plans)

You cooooooould manually do this if you enjoy the process of data backup (I don’t), or you could just install an app and automate the process.

It’s free for orders up to 100/mo then scales with the size of your store. I consider Rewind an insurance policy to save time, money, and reputation if a person or app accidentally screws up your store.

Get Rewind here


Growth is all about experimenting, trying new apps, and executing new marketing tactics.

We have experience using all of these apps, if you need help setting up for success contact us.

If you’re looking for tips and tactics, check out the Blog.

If you want us to optimize your Shopify site to make it faster and more efficient, head over to our Shopify Optimization Services page.

Some of our posts contain affiliate links, meaning Speed Boostr could receive a commission if you sign up through these links. We only recommend apps and services we believe in. Please read our affiliate disclaimer for more information.