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Most roundups of the best Shopify marketing apps are really email roundups with a few extras attached. But a marketing stack is a set of jobs, not a popularity contest — so this guide is organized by job. Seven of them, in the order most stores should think about them. Pricing reflects published rates as of May 2026; confirm before you commit.
The category most lists skip, and skipping it is a mistake. Your happiest customers already recommend you in group chats — a referral program turns that into a trackable channel. It belongs early because it compounds: every other channel costs more as you scale, while referral gets cheaper per acquisition.
ReferralCandy — Best for: stores with real customer love that want referrals and affiliates running as a measured channel. It automates invites, reward payouts, and fraud checks, and runs affiliate and influencer programs from the same place. A referred customer arrives already trusting you, because a person they know did the vouching. MiaoMiao, a health-tech brand, drives 27% of its monthly revenue from referral sales.
Key features: automated referral invites and payouts, affiliate and influencer programs, fraud detection, integrations with Klaviyo and major review and loyalty apps.
Pricing: from $39/month plus a commission on referred sales, scaling to $79, $249, and $799 tiers as the rate drops. Free trial.
The highest-margin channel most stores own outright — where you keep the relationship warm between purchases.
Klaviyo — Best for: stores ready to treat email as a revenue engine. Hard-to-match segmentation and automation flows, with email and SMS in one platform. The trade-off is cost, which climbs with your list.
Key features: behavioral segmentation, prebuilt automation flows, email and SMS, predictive analytics.
Pricing: free up to 250 contacts; paid email from ~$20/month, email plus SMS from ~$35/month.
Omnisend — Best for: smaller stores wanting strong automation without Klaviyo's bill. The feature gap is narrower than the price gap under a few thousand contacts.
Key features: email and SMS automation, prebuilt ecommerce workflows, popups, A/B testing.
Pricing: free up to 250 contacts; Standard from ~$16/month, Pro from $59/month.
The proof layer — it turns a stranger's hesitation into a purchase by showing real customers took the risk first.
Yotpo — Best for: larger stores wanting reviews inside a wider retention suite. Polished, with loyalty integration. Yotpo discontinued its own email and SMS products at the end of 2025.
Key features: review collection and display, photo and video reviews, syndication, moderation.
Pricing: from $79/month; a limited free tier exists.
Judge.me — Best for: strong reviews without a monthly debate about cost. Unlimited reviews on a usable free plan and one flat paid tier.
Key features: unlimited review requests, photo and video reviews, SEO rich snippets, 100-plus integrations.
Pricing: free plan; the Awesome plan is a flat $15/month.
Loox — Best for: visual-first brands where the product photographs well. Built to put customer photos and video front and center.
Key features: photo and video review collection, customizable galleries, referral add-on.
Pricing: from $9.99/month, scaling to $34.99 and $299.99 tiers by order volume; referral add-on $5/month.
The job of making the second and tenth purchase feel worthwhile — best once you have repeat-purchase potential.
Smile.io — Best for: getting a points and VIP program live quickly. Setup that does not need a developer.
Key features: points programs, VIP tiers, referral basics, on-brand widgets.
Pricing: free under 200 monthly orders; paid plans $79/month (Starter) and $199/month (Growth).
LoyaltyLion — Best for: higher-volume stores wanting loyalty wired into the rest of the stack. Deeper customization and data hooks into email, SMS, and reviews tools.
Key features: custom points and rewards rules, tiers, loyalty pages, broad integrations.
Pricing: free plan; paid plans from around $399/month, scaling with order volume.
Referral and loyalty are close cousins — both reward customers for staying engaged. ReferralCandy added Loyalty Campaigns in 2026, so a store already running referrals through it can keep both motions in one tool.
Most traffic leaves without buying — lead capture keeps a way to reach the ones who were close.
Privy — Best for: growing an email and SMS list from existing traffic. Built around the capture moment, with light sending attached.
Key features: popup and form builder, exit-intent and targeting rules, basic email and SMS, A/B testing.
Pricing: Convert plan from $24/month; email and SMS plans from $30 and $45/month.
The cheapest revenue you will find is the next item added by a customer with their card already out.
ReConvert — Best for: post-purchase and thank-you-page upsells without heavy setup.
Key features: one-click post-purchase upsells, thank-you-page builder, cross-sell bundles, surveys.
Pricing: free plan; paid tiers $4.99, $7.99, and $14.99/month by order volume, plus 0.75% of app-generated revenue.
An owned retargeting channel that does not depend on ad spend — a useful late addition.
PushOwl — Best for: stores wanting retargeting without paying a platform for reach. Now part of Brevo; sends web push for abandoned carts and restocks with no email address required.
Key features: web push for carts and restocks, segmentation, automation, unlimited subscribers.
Pricing: free up to 500 monthly impressions; Plus $19/month, Power $79/month.
You do not need all seven on day one. Just launched: start with reviews and email. Steady traffic that has plateaued: add referral and lead capture — this is where you stop paying full price for every new customer. Healthy repeat business: layer in loyalty, upsell, and push. The pattern underneath is the same one referral marketing is built on — the cheapest growth comes from customers who already trust you, through their reviews, their repeat orders, and the people they bring with them.
Raúl Galera is the Growth Lead at ReferralCandy, where they’ve helped 30,000+ eCommerce brands drive sales through referrals and word-of-mouth marketing. Over the past 8+ years, Raúl has worked hands-on with DTC merchants of all sizes (from scrappy Shopify startups to household names) helping them turn happy customers into revenue-driving advocates. Raúl’s been featured on dozens of top eCommerce podcasts, contributed to leading industry publications, and regularly speaks about customer acquisition, retention, and brand growth at industry events.
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