Top 15 Email Marketing Shopify Apps [2026]

Email is still the highest-margin channel a Shopify store has. Klaviyo's 2026 benchmarks, drawn from more than 183,000 brands, found automated flows produced nearly 41 percent of all email revenue from just 5.3 percent of sends.

Omnisend's 2026 report, built on 27 billion emails, says the same from a different dataset. Automations were 2 percent of sends and 30 percent of email revenue.

The money is in automation, not in blasting your list.

Here is the part most comparison posts skip. Almost every major email marketing Shopify app bills you on contacts stored, not emails sent. Your bill grows when your list grows, even if you never send to those people. That single detail decides more merchant regret than any feature gap.

So which email marketing Shopify app should you actually install?

This list covers 15 apps live on the Shopify App Store today. Every rating, tier and price was checked in August 2026, and each entry names the specific complaint merchants leave in its one-star reviews.

Why Your Shopify Store Needs an Email Marketing App

Shopify gives you a customer list. It does not, on its own, give you a good way to act on it.

The gap shows up in automation. A welcome series, an abandoned cart sequence, a back-in-stock alert and a post-purchase flow produce most email revenue for a small store. Omnisend puts revenue per automated email send at $2.87 against $0.18 for a one-off campaign.

That is a sixteen-fold difference on the same list.

Take a DTC coffee roaster sending one newsletter a month. Moving three of those sends into an abandoned-cart flow and a back-in-stock alert beats doubling newsletter frequency, every time.

The second gap is deliverability. Since February 1, 2024, Google has required bulk senders to authenticate with SPF, DKIM and DMARC, offer one-click unsubscribe, and keep spam complaints below 0.30 percent. A dedicated email app handles that plumbing.

A Shopify email marketing app is not a nicer newsletter builder. It is the difference between a list you own and a list that earns.

Top 15 Email Marketing Shopify Apps

1. Klaviyo: Email Marketing & SMS

Why choose this Shopify email marketing app?

• The deepest segmentation on the store. Audiences built from real-time Shopify data plus 350+ integrations, with predictive analytics.
• Flow logic nothing else matches. Conditional splits, send-time optimization and trigger conditions competitors simplify away.
• Email, SMS and WhatsApp in one place, with a Composer for cross-channel campaigns.
• Worth knowing: pricing dominates the one-star reviews. Since February 18, 2025 Klaviyo bills on active profiles, meaning anyone reachable by email, not just opt-ins. One merchant reports going "from 80usd to 150usd" in a year. Bot signups inflate tiers, and support is gated behind a paid plan.

Pricing: Free up to 250 contacts. Email from $20/month at 251 to 500 contacts, rising with list size. SMS from $15/month.

Best for: Stores with real list revenue and someone who will use the segmentation depth.

Rating: 4.7 stars, 2,981 reviews

2. Omnisend Email Marketing & SMS

Why choose this Shopify email marketing app?

• Klaviyo-class features at roughly a third of the price. Standard starts at $16 against Klaviyo's $20 for a smaller contact band.
• Email, SMS, web push and popups in one app, so no separate list-growth tool is needed.
• 24/7 live support even on the free plan.
• Worth knowing: Omnisend also bills on stored contacts. One merchant: "we were only emailing ~30% of the contacts we were being charged for."

Pricing: Free up to 250 contacts and 500 emails/month. Standard $16/month. Pro $59/month. SMS from $0.007 per message.

Best for: Growing stores who want most of Klaviyo's capability without Klaviyo's bill.

Rating: 4.8 stars, 2,952 reviews

3. Shopify Messaging

Why choose this Shopify email marketing app?

• The first 10,000 emails every month are free, then $1 per 1,000. No contact-based billing at all.
• Email, SMS and WhatsApp from inside your admin, with WhatsApp added in July 2026.
• Sidekick AI builds branded emails from a plain description of what you want.
• Worth knowing: renamed from Shopify Email, which most comparison articles have not caught. The editor is the recurring complaint: templates are "basic and looks outdated" with no custom code. Merchants also report send lists being truncated, and the SMS side is not yet reliable.

Pricing: Free to install. First 10,000 emails/month free, then from $1 per 1,000 emails.

Best for: Stores under roughly 5,000 subscribers who want zero fixed cost.

Rating: 4.7 stars, 4,170 reviews

4. SendWILL Popup Email Marketing

Why choose this Shopify email marketing app?

• The most reviewed app on this entire list, at 4.9 stars across more than 7,400 reviews.
• Unlimited stored contacts on every tier. You are billed on emails sent and new subscribers captured, never on the size of your list.
• Popups and email in one app at a price where neither feels like an add-on.
• Worth knowing: this is list-growth first and email second, so the negative reviews focus on popup performance. One merchant reports "582 impressions and a whopping 3 people have provided an email address." Another flags that generated discount codes are not account-locked and can be redeemed by anyone.

Pricing: Free plan (1,000 marketing emails/month, 30 new subscribers/month, unlimited stored contacts). Essential $11.90/month. Pro $29.90/month (15,000 emails). Premium $79.90/month (50,000 emails). 14-day trial on paid tiers.

Best for: Stores growing a list fast who do not want the list itself to cost anything.

Rating: 4.9 stars, 7,491 reviews

5. Mailchimp Email SMS Marketing

Why choose this Shopify email marketing app?

• The most familiar editor in email marketing, with the widest template library.
• Shopify segment sync turning store events into email and SMS audiences.
• Automated single-use discount codes generated per recipient.
• Worth knowing: Mailchimp pulled its Shopify app in 2019 over a data dispute and returned in 2021. Billing complaints are current: "Mailchimp only recognized 302 active emails, yet they forced me into a higher tier." Several report rogue double opt-in emails.

Pricing: Free plan. Essentials from $13/month. Standard from $20/month. Premium from $350/month. All tiers priced by contact count.

Best for: Teams already fluent in Mailchimp who do not want to relearn a tool.

Rating: 4.8 stars, 1,348 reviews

6. Avada Email Marketing

Why choose this Shopify email marketing app?

• The most generous free tier here: 12,000 emails a month and 500 contacts, with real automation workflows.
• Web push included free, which most competitors charge for.
• SMS and WhatsApp on the Pro tier at $16 a month.
• Worth knowing: negative reviews target the core function. One merchant: "The test email isn't sending, the email campaign isn't sending." Deliverability complaints appear more than once.

Pricing: Free plan (12,000 emails, 500 contacts). Pro $16/month. Advanced $47/month. 14-day trial.

Best for: New stores who want full automation before spending anything.

Rating: 4.8 stars, 766 reviews

7. Seguno Email Marketing

Why choose this Shopify email marketing app?

• It never leaves the Shopify admin. Direct access to segments, discounts, products and blog posts, no tab switching.
• Canva integration plus Sidekick AI for drafting campaigns.
• Built-in deliverability assistance and spam protection.
• Worth knowing: Seguno raised its entry tier from roughly $10 to $35 and merchants say they were auto-opted in: "I did not have an option to keep my current plan."

Pricing: Free up to 250 subscribers. Standard $35/month (2,500 subscribers). Pro $215/month (25,000 subscribers). 10-day trial.

Best for: Merchants who want email to feel like a native Shopify feature.

Rating: 4.8 stars, 650 reviews

8. Brevo PushOwl: Email, Push, SMS

Why choose this Shopify email marketing app?

• Unlimited subscribers on every tier, including free. No contact-count billing anywhere.
• Web push, email, popups and SMS bundled, with 500 web pushes and 500 emails a month at zero cost.
• Back-in-stock and price-drop alerts on the free tier.
• Worth knowing: support latency dominates the negative reviews. Some merchants report campaign blocking after a handful of unsubscribes, and one lost 27,000 push subscribers during the Brevo migration.

Pricing: Basic Bundle free. Plus $19/month. Power $79/month.

Best for: Stores with a big list and a small budget, where per-contact pricing is the blocker.

Rating: 4.8 stars, 2,027 reviews

9. AfterShip Email Marketing, SMS

Why choose this Shopify email marketing app?

• The cheapest credible paid tier here at $11 a month, with a real free plan under it.
• Popups and a built-in CRM bundled in, so it replaces two apps.
• AI product recommendations and countdown timers inside campaigns.
• Worth knowing: account suspensions are the recurring complaint. One merchant's "account was suspended and I was unable to send a single email," alongside upgrades billed without consent.

Pricing: Free plan. Essentials $11/month. Pro $119/month. Premium $179/month. 7-day trial on paid tiers.

Best for: Small stores consolidating popups, email and SMS into one cheap app.

Rating: 4.7 stars, 1,950 reviews

10. Privy ‑ Email, SMS & Pop Ups

Why choose this Shopify email marketing app?

• The strongest popup and list-growth tooling here, including multi-step and mini-quiz forms.
• Advanced targeting across every popup type.
• A flow builder for automation once contacts are captured.
• Worth knowing: Privy is the only app here with no free plan and no free trial, and popups bill on pageviews separately from email. One merchant: "we were being charged $45+ USD a month for literally an email signup."

Pricing: No free plan. Pop Ups & Displays $24/month (scales with traffic). Email $30/month. Email and SMS $45/month.

Best for: Stores whose bottleneck is list growth rather than sending.

Rating: 4.5 stars, 3,972 reviews

11. SmartrMail Email & SMS

Why choose this Shopify email marketing app?

• One-click AI newsletters with personalized product recommendations from your catalog.
• A dedicated strategist on Pro who sets up and reviews your flows.
• Assisted migration from Klaviyo or Mailchimp handled by their team.
• Worth knowing: billing is the complaint pattern, including unexplained recurring charges and a refund dispute over lost subscriber data.

Pricing: Free up to 200 subscribers and 1,000 emails/month. Essentials $10/month plus $0.0125 per subscribed profile. Pro $49/month plus $0.01 per profile. 15-day trial.

Best for: Merchants who want the emails written for them.

Rating: 4.7 stars, 277 reviews

12. ActiveCampaign Marketing

Why choose this Shopify email marketing app?

• A real CRM underneath the email, on the cheapest tier along with site tracking.
• Product catalog and coupon blocks inside emails on Plus.
• Predictive sends and attribution tracking on Pro, plus Shopify Plus support.
• Worth knowing: cancellation friction is the loudest complaint: "It is extremely hard to cancel your account and they use all the tricks in the book." Another merchant waited four months for SMS registration before leaving.

Pricing: No free plan. Starter $19/month. Plus $59/month. Pro $89/month. Enterprise $159/month. 14-day trial on all tiers.

Best for: Stores where email needs to talk to a sales pipeline.

Rating: 4.6 stars, 240 reviews

13. Drip Email Automation & Popups

Why choose this Shopify email marketing app?

• Segmentation-first by design, for stores that have outgrown sending to everyone.
• A/B split testing inside automation workflows, not just on campaigns.
• Unlimited users with no per-seat charge, which is unusual.
• Worth knowing: only 51 reviews, so the sample is thin. No recent negative pattern, which cuts both ways.

Pricing: No free plan. Single tier at $39/month, rising with list size and send volume. 14-day trial.

Best for: Small teams who want one flat plan and no seat maths.

Rating: 4.6 stars, 51 reviews

14. Sendlane: Unified Email & SMS

Why choose this Shopify email marketing app?

• Unlimited contacts on every tier, billed on sends rather than list size.
• Email, SMS and product reviews on one platform, collapsing three tools into one.
• Worth knowing: the entry paid plan starts at $600 a month, and revenue attribution is the main complaint. Merchants report the tracking beacon failing and reported revenue not matching sales.

Pricing: Free plan with a 60-day trial. Professional $600/month. Enterprise $1,550/month.

Best for: High-volume senders consolidating a fragmented retention stack.

Rating: 4.5 stars, 12 reviews

15. Attentive: AI‑led Email & SMS

Why choose this Shopify email marketing app?

• Patented two-tap signup units, 30+ types, no code. The best list-growth mechanic here.
• Cross-channel audiences across SMS, email, push and RCS that update instantly.
• In-house TCPA compliance experts and templates.
• Worth knowing: no pricing is published on the listing, and contract lock-in is the dominant complaint. One merchant reports an $11,000 bill for the remainder of a contract, sent to collections.

Pricing: Free to install. Minimum 30-day free trial, then month-to-month or annual contract. No public tier pricing.

Best for: Larger brands with a retention team and legal review capacity.

Rating: 4.8 stars, 106 reviews

Shopify Email App Comparison Table: Pricing and Free Plans Compared

The Pricing Trap: Why Your Bill Grows When Your Sends Do Not

This is the section every other comparison post leaves out, and the one that costs merchants real money.

Most email marketing Shopify apps bill on contacts stored, not emails sent. Klaviyo moved to active-profile billing on February 18, 2025, where an active profile is anyone who can be emailed, including people added by a purchase or an abandoned checkout. Not just people who opted in.

The result is a bill that climbs on its own.

Three things inflate it without adding a customer: bot signups through your popup, abandoned-checkout profiles from browsers who never bought, and unsubscribed contacts that some platforms still count.

Merchants say this plainly. One Omnisend user reported emailing only about 30 percent of the contacts they were charged for. One Klaviyo user described bot signups filling their list with fake addresses they could not delete.

Two ways out. Move to a send-based app, which here means Shopify Messaging, Brevo PushOwl, SendWILL or Sendlane. Or suppress aggressively, because suppressed profiles do not count toward Klaviyo's billing tier.

Contact-based pricing is not dishonest. You just need to know which model you signed up for before your list doubles.

Choosing the Right Email Marketing App: A Quick Checklist

Five questions settle this faster than any feature grid.

1. Are you billed on contacts stored or emails sent? If your list is large and lightly mailed, send-based billing will be dramatically cheaper.
2. What happens at 10x your current list size? Price the tier you will be on in a year, not the one you start on.
3. Does it handle SPF, DKIM, DMARC and one-click unsubscribe for you? Google has required all four from bulk senders since February 2024, and this is the real cause of most "my emails stopped sending" complaints.
4. Can you build the four flows that matter? Welcome, abandoned cart, back-in-stock and post-purchase. Everything else is optional.
5. How hard is it to leave? Check for annual contracts, cancellation friction, and whether flow logic and suppression history export. Several apps here have merchants who could not get out cleanly.

Under 10,000 emails a month, start with Shopify Messaging and spend nothing. Past that, Omnisend and Brevo PushOwl are the best value moves before Klaviyo becomes worth its price.

Free Ways to Start Without a Budget

You do not need a paid plan to run real email marketing on Shopify.

• Shopify Messaging. 10,000 free emails every month, with email, SMS and WhatsApp inside your admin. The most generous free offer here by volume.
• Avada Free. 12,000 emails a month, 500 contacts, real automation workflows and web push included.
• Brevo PushOwl Basic. Unlimited subscribers with 500 emails and 500 web pushes a month, so a big list costs nothing to hold.
• Omnisend Free. 250 contacts and 500 emails a month, with the full automation editor and 24/7 support.
• Klaviyo Free. 250 contacts, enough to build and test your flows before committing.

Run a free tier until it breaks. Where it breaks tells you what to buy.

The Takeaway

The best email marketing Shopify app is not the one with the most features. It is the one whose billing model matches how you actually use your list.

A store with 40,000 lightly-mailed contacts and a store with 4,000 heavily-mailed ones need opposite tools. Contact-based pricing punishes the first. Send-based pricing punishes the second.

Get that right and the feature comparison mostly stops mattering.

One thing worth adding once email is working: better content, not more sends. Most Shopify brands have no reliable pipeline for creator and customer photography.

That is the gap Unboxx fills. Unboxx is not an email tool and will not replace anything on this list. It runs the creator side: find creators, gift them product through a branded form, and collect what they post into a Content Portfolio you can pull into your Klaviyo, Omnisend or Shopify Messaging campaigns.

Pick your email app from the list above. Then give it something worth sending.