How we make this list: we compare pricing pages, product documentation and public user reviews. Ratings come from G2, Capterra or Trustpilot, with the date we checked them.
Key takeaways
- Klaviyo and Omnisend cover email and SMS; pick one, never both, from $45 and $16 a month.
- Judge.me is the reviews bargain of the platform, free to start and $15 a month for the full plan.
- PageFly builds the landing pages Shopify themes cannot, free to start and from $24 a month.
- Rebuy's upsells start at $99 a month, so it suits stores with the order volume to repay it.
- Printful and DSers are fulfilment models, not just apps: print on demand and dropshipping.
Quick comparison
| Tool | Best for | Starting price | Free plan |
|---|
 Klaviyo | Email and SMS marketing that scales | $45/month | Yes |
 Omnisend | Email and SMS for smaller budgets | $16/month | Yes |
 Judge.me | Product reviews at the lowest cost | $15/month | Yes |
 PageFly | Landing pages beyond your theme | $24/month | Yes |
 Rebuy | Upsells and smart cart recommendations | $99/month | No |
 Printful | Print on demand without inventory | Free | Yes |
 DSers | Dropshipping order automation | $19.90/month | Yes |
Is your product missing or out of date?
We review this list regularly. Vendors can request a listing, send updated pricing or ask about featured placement.
The best Shopify apps for ecommerce in 2026
#1Klaviyo
Best for: Email and SMS marketing that scales4.6/5 on
G2 (1,368 reviews, checked Oct 2026)
Visit klaviyo.com
Starting price$45/month
Free planYes
Klaviyo is where Shopify email marketing lives. Its integration reads your store's orders, products and browsing behaviour so precisely that a five flow starter set, welcome, abandon, browse abandon, post purchase, winback, routinely becomes a store's second largest revenue channel. It starts free for small lists and from $45 a month as the list grows.
Buy it when email is a strategy rather than a chore. The honest cost conversation is about trajectory: Klaviyo meters your profiles, so a good year raises next year's bill. Stores doing serious volume accept that as a tax on growth. Stores sending a monthly newsletter should take Omnisend's cheaper seat and spend the difference on products.
What we like- The reference email platform for Shopify, with deep store data driving segments and flows, free plan for up to 250 profiles to start, abandoned cart, browse and post purchase flows are its proven money makers, SMS sits in the same platform and the same customer profiles
Watch out for- Pricing climbs with your list size, so success raises the bill every quarter, the platform is powerful enough to need a learning investment, SMS costs add on top of email pricing per market, small stores often pay for capacity they use twice a year at sale time
#2Omnisend
Best for: Email and SMS for smaller budgets4.6/5 on
G2 (1,255 reviews, checked Oct 2026)
Visit omnisend.com
Starting price$16/month
Free planYes
Omnisend is the same job as Klaviyo priced for smaller stores: campaigns, automations, popups and SMS in one panel, with the standard ecommerce flows ready to switch on. From $16 a month it covers what a store under a few thousand subscribers actually sends, without Klaviyo's meter anxiety.
Its ceiling is real. Stores that grow into heavy segmentation, complex testing and large lists usually graduate to Klaviyo within a couple of years, and the migration means rebuilding flows. That is a fine problem to buy later with revenue. Until then, Omnisend is the rational default for the majority of Shopify stores reading this guide.
What we like- Email and SMS automation from $16 a month on Standard, with a free plan to start, prebuilt ecommerce workflows and popups included rather than sold separately, global SMS pricing suits stores selling beyond the US, widely praised ease of use for non marketers
Watch out for- Segmentation and reporting depth trail Klaviyo at the high end, the free plan is capped enough to be a trial in practice, advanced stores eventually migrate up to Klaviyo and rebuild their flows, template design is good rather than best in class
#3
Judge.me
Best for: Product reviews at the lowest cost
Visit judge.me
Starting price$15/month
Free planYes
Judge.me is the easiest recommendation on this page. Reviews are the highest trust feature a product page can carry, and Judge.me delivers them for free at a standard most stores never outgrow, with the full feature set at $15 a month flat while rivals meter by orders. Its 5.0 star standing across a huge review count on the App Store, as listed in 2026, is the category's loudest satisfaction signal.
There is no strategic catch. Install it, automate the post delivery review request, add the star widget to product and collection pages, and let the library build. If your store later wants photo led review galleries as a design centrepiece, that is the one reason to look at Loox. For everyone else, this line of the app budget is settled at $15.
What we like- A genuinely useful free plan with unlimited review requests, the Awesome plan at $15 a month adds photos, videos, Q&A and full widget customization, holds a 5.0 star average across tens of thousands of Shopify App Store reviews per its 2026 listing, fast widgets that do not drag page speed the way heavy review apps can
Watch out for- The free plan's widgets carry Judge.me branding touches, design polish trails the premium priced rivals slightly, advanced features like detailed review analytics are thinner than Loox or Stamped at their best, it only does reviews, so it will not replace a loyalty or referral platform
Starting price$24/month
Free planYes
Every store eventually hits a page the theme cannot build: the advertorial for the paid campaign, the bundle page, the story led product launch. PageFly exists for that moment, letting a merchant assemble conversion shaped pages without a developer. Its free plan covers the first real test, and paid plans from $24 a month raise the page allowance.
Use it with discipline. Pages built for campaigns should be unpublished when campaigns end, both for store tidiness and because your plan charges by live slots. And check the mobile speed of anything you build, since a beautiful heavy page converts worse than a plain fast one. Within those rules, PageFly pays for itself the first time an ad lands on a page designed for it.
What we like- A drag and drop page builder for product, landing and collection pages your theme cannot express, free plan publishes a limited number of pages, enough for a first campaign, from $24 a month as your page count grows, templates for sales pages, advertorials and bundles shorten the design work
Watch out for- A powerful builder can produce slow pages in careless hands, so test speed after building, costs scale with published slots, which punishes stores that build a page per promotion, some merchants find they needed a better theme, not a builder, support quality varies by plan tier
#5Rebuy
Best for: Upsells and smart cart recommendations4.7/5 on
G2 (5 reviews, checked Oct 2026)
Visit rebuyengine.com
Starting price$99/month
Free planNo
Rebuy is mathematics, not magic. It raises average order value with well placed recommendations: the slide out cart that suggests the complement, the post purchase offer that adds one more item. On a store with healthy traffic, a few percent on order value covers $99 a month many times over. On a store with forty orders a month, the same fee is a donation.
Run the numbers before the trial: your monthly orders times your current order value times a conservative 3 percent lift is the monthly prize. If that figure does not clear the fee with room, wait. Rebuy will still be there when your volume justifies it, and installing it early only trains you to ignore its reports.
What we like- The smart cart and recommendation engine serious Shopify stores use to lift order value, product recommendations, in cart upsells and post purchase offers in one system, rules plus AI merchandising let you control what gets offered where, reporting attributes the added revenue, which makes the fee auditable
Watch out for- At $99 a month to start it is this list's premium line, and hopeless for low volume stores, no free plan, and the trial window is short for measuring order value honestly, aggressive upselling annoys customers when rules are set greedily, overlapping features with your theme or other apps can double the offers shown
#6Printful
Best for: Print on demand without inventory4.4/5 on
G2 (181 reviews, checked Oct 2026)
Visit printful.com
Starting priceFree
Free planYes
Printful is not really an app purchase; it is a business model in an app. Connect it, design products, and inventory risk disappears: nothing is printed until it is sold. For testing designs, merch for an audience, or a store that cannot fund stock, that trade is worth the thin margins it imposes.
Read the unit economics before the design tool seduces you. A shirt that costs $13 to print and fulfil cannot retail at $19.95 against ads and survive. Printful stores succeed on design, audience and price discipline, in that order. Its multi continent fulfilment at least keeps shipping times and costs sane while you learn whether your designs sell at real prices.
What we like- No app fee: you pay per product only when a customer orders, prints and ships apparel, posters and more from facilities on several continents, quality control and print consistency are its reputation in a flaky category, mockup tools and branding options like custom labels at fulfilment
Watch out for- Per unit costs are far above bulk printing, so margins stay thin, fulfilment times are slower than shipping your own stock, you control nothing about the physical product once an order is placed, returns for non defect reasons are usually your cost
Starting price$19.90/month
Free planYes
DSers does for dropshipping what a warehouse system does for stock: it takes the order from Shopify and places it with the supplier, in bulk, with the right variants and addresses. If you run that model, the free plan proves the workflow and $19.90 a month removes hours of manual ordering a day at any real volume.
The app is not the risk in this entry; the model is. Long delivery windows, variable quality and thin margins after advertising are the dropshipping facts of life, and no automation fixes them. DSers earns its place by being the competent plumbing for stores that accept those facts and compete on product selection and marketing instead.
What we like- The official tier automation partner in the AliExpress dropshipping workflow, free plan covers a small product catalogue, paid from $19.90 a month, bulk ordering turns a hundred manual orders into a batch process, supplier mapping and price rules protect margins when source prices move
Watch out for- It automates a model whose shipping times and quality control are its known weaknesses, entirely your problem with customers, AliExpress centred, so it fits only one sourcing strategy, plan limits on products and orders scale the fee with your catalogue, dropshipping margins after ads are unforgiving in 2026
How we chose
Apps had to be established Shopify App Store products with public pricing, a free plan or trial, and a job that maps to a core ecommerce function: marketing, social proof, page building, order value or fulfilment. Ratings referenced are the apps' own App Store listings as reported in 2026 and are attributed as such in the entries. Where a platform meters by list size or orders, the entry says so, because the starting price is the least a store will ever pay.
The bill nobody adds up
Price this stack honestly. A store running Klaviyo at $45, Judge.me at $15, PageFly at $24 and Rebuy at $99 spends $183 a month, over $2,100 a year, before Shopify's own subscription and before Klaviyo's meter rises with the list. None of those fees is unreasonable. Together they rival the rent on a small market stall, which is what your store is.
So add apps one at a time, each against a number you can watch: email revenue, conversion rate, order value, refund rate. Give each a month and a verdict. Remove what does not pay, including famous names, because an app store's bestseller list is a record of what stores install, not of what stores profit from. The best stack is the shortest one that covers your store's actual jobs.
Frequently asked questions
How many apps should a Shopify store run?
Fewer than you think. Most healthy stores run five to ten, covering marketing, reviews, one design tool and their fulfilment method. Every app adds cost, page weight and one more dashboard, so each must own a job and a number.
Do I need both Klaviyo and Omnisend?
No. They do the same job, email and SMS marketing, and running both splits your data and doubles your sending costs. Omnisend suits smaller budgets; Klaviyo suits stores ready to invest in segmentation depth. Pick one and commit for a year.
Are free plans on these apps actually usable?
Judge.me's free plan and PageFly's free tier genuinely are, for their core jobs. Klaviyo's and Omnisend's free plans work as starting tiers for small lists. Printful charges no app fee at all; its cost is the product cost per order.
Will these apps slow my store down?
They can. Anything that injects widgets, popups or scripts into your pages adds weight, and page builders put the responsibility on you. Test your product page speed after each install and remove what costs more in load time than it earns in function.
Which app should a brand new store install first?
Judge.me for reviews, because social proof compounds from the first sale, and a free email plan from Omnisend or Klaviyo to capture the visitors you already have. Add the rest only when a specific problem, order value, landing pages, fulfilment, is costing you measurable money.
Sources we checked (0)
Is your product missing or out of date?
We review this list regularly. Vendors can request a listing, send updated pricing or ask about featured placement.
Shihab Mia · Founder, Rankite
Shihab has 5+ years in B2B and SaaS SEO. He writes Rankite's software buying guides from pricing pages, documentation and public user reviews. More about Shihab.