You're setting up email marketing for your Shopify store and three names keep coming up: Omnisend, Shopify Email, and PushOwl. All three offer free plans. All three promise to help you grow. But once you look closely, the differences are significant, and choosing the wrong free tier can cost you real revenue before you ever pay a dollar.
This is a free-plan-only comparison. We're not reviewing paid features, because you shouldn't have to pay to find out which tool deserves your business. Every score, every verdict, every recommendation here is based entirely on what you actually get for $0.
Let's get into it.
The Verdict Table (Skip Ahead If You're in a Hurry)
Overall Free Plan Score:
- 🥇 PushOwl: 9.1 / 10
- 🥈 Shopify Email: 6.4 / 10
- 🥉 Omnisend Free: 4.8 / 10
Competitor #1: Omnisend Free Plan, What You Actually Get
Omnisend markets itself as an omnichannel ecommerce platform. At the paid tier, that's a fair description. At the free tier, however, there are some hard limits that need careful attention before you commit.
The Send Limits: A Practical Problem
Omnisend's free plan allows you to send 500 emails per month to a maximum of 250 contacts. That's 500 emails. Total. For the entire month.
For context: a single 3-email abandoned cart sequence sent to 100 contacts uses 300 of your monthly 500. Add a weekly newsletter and you've burned through your limit in week one. For any store with regular traffic and a growing list, the Omnisend free tier runs out fast.
You can upload as many contacts as you want to Omnisend, but you can only send to a maximum of 250 on the free plan. This creates a specific frustration: if your list grows to 300 or 400 contacts, which can happen within the first few weeks of running a pop-up, 50–150 of your subscribers simply won't receive your emails. You're actively leaving warm leads uncontacted.
Automation: Available, But Constrained by Volume
The automation capability on Omnisend's free plan is technically present. Welcome flows, abandoned cart, and basic post-purchase sequences are accessible. The problem isn't the automation builder, it's the 250-contact ceiling it operates within.
Advanced automations like back-in-stock alerts, price drop notifications, and win-back campaigns are not available on the Omnisend free tier. SMS is not available on the free plan. Web push notifications require the Standard or Pro plan.
The Branding Watermark
Omnisend places a watermark on emails sent from the free plan, and this watermark cannot be removed without upgrading. Every email you send to customers carries "Powered by Omnisend" branding, visible to your buyers. For stores selling premium products or building brand credibility, that's a detail worth considering seriously.
Upgrade Pressure: High
Once you're doing more than $10,000 per month in revenue, the free plan limits become a real constraint, you'll outgrow it quickly. Even before that point, the 250-contact wall pushes most actively-growing stores toward a paid plan within weeks of launch. The jump from free to Standard gives you 6,000 emails/month and 500 contacts, a genuine improvement, but one that comes with a monthly cost most early-stage stores didn't budget for.
Bottom line on Omnisend Free: It works as a proof-of-concept. It's a reasonable tool for a store with a very small, static contact list. But for any store expecting active list growth, the 250-contact ceiling becomes a practical bottleneck almost immediately.
Competitor #2: Shopify Email, What You Actually Get
Shopify Email is the native email tool built into every Shopify plan. It requires no additional app installation and connects automatically to your store's customer data.
The Send Limits: Generous on Volume
Shopify Email's headline free tier benefit is 10,000 emails/month at no cost, with no subscriber cap. That's meaningful volume, enough to run regular newsletters and automation sequences for most early-stage stores without hitting a ceiling.
Automation: Simple and Shallow
Shopify Email has made improvements in automation as of 2026, with pre-built automation workflows directly within the Shopify admin covering essential customer journeys like welcome emails and abandoned cart reminders.
What it doesn't cover: Shopify Email remains an email-only automation tool, you can't send SMS or push notifications through automation flows, and you'll need to integrate third-party tools for that.
More practically: the automation trigger library is limited. Back-in-stock alerts, price drop notifications, browse abandonment triggers, and win-back campaigns are absent. For a store that wants to go beyond basic email sequences, Shopify Email runs out of depth relatively quickly.
Integration Quality: Excellent (It's Built In)
This is genuinely Shopify Email's strongest point. Because it's native to Shopify, the data connection is immediate and complete. No API tokens, no sync delays, no fields that don't map correctly. Customer order history, product catalog, and purchase behavior are all available out of the box.
The Hidden Limitation Most Merchants Miss
Shopify Email uses shared sending infrastructure. As your list scales and your send frequency increases, deliverability becomes a variable, not a guarantee. There's no control over your sending IP, and no visibility into how other Shopify Email senders on the same infrastructure are affecting your inbox placement.
Bottom line on Shopify Email: It's a solid starting point for absolute beginners who want the simplest possible setup. The 10,000 free sends are useful. But the automation depth is shallow, and you'll find yourself needing additional tools sooner than you might expect.
PushOwl Free Plan, The Full Picture
PushOwl (by Brevo) is purpose-built for Shopify merchants and brings something the other two tools don't: a multi-channel free plan that combines email marketing and web push notifications in a single dashboard.
Send Limits and Subscriber Cap: Designed to Grow With You
PushOwl's free plan is structured around unlimited subscribers, meaning list growth never triggers automatic upgrade pressure. You're not managing around a 250-contact wall or watching subscriber counts nervously. You can grow your list aggressively, run all your campaigns, and not worry about subscribers going uncontacted because of a plan ceiling.
This matters more than it might seem. The entire point of free email marketing is to let your store grow before you invest. A free plan with a contact ceiling works against that goal from day one.
Automation Depth: The Full Suite, Free
This is where PushOwl creates a decisive gap. On the free plan, you get pre-built, one-click automation for:
- Welcome series
- Abandoned cart recovery (multi-step sequence)
- Post-purchase follow-up and upsell
- Back-in-stock alerts
- Price drop notifications
- Win-back / re-engagement campaigns
- Browse abandonment sequences
Compare that list against what Omnisend Free offers (basic welcome + cart, no back-in-stock, no price drop) and what Shopify Email offers (welcome + cart, nothing beyond). The gap isn't incremental. It's the difference between a partial automation stack and a complete one, at zero cost.
For store owners who want to understand what these automations should look like in practice, the Shopify email templates guide walks through each flow with ready-to-use copy and structure.
The Web Push Advantage: A Free Channel No Competitor Includes
Every email app in this comparison is exactly that: an email app. PushOwl is the only free option that includes web push notifications as a channel alongside email.
Web push notifications reach customers directly on their browser or device, without needing an email address. They carry a 40–50% click-through rate versus 2–3% for email. When layered into your abandoned cart or back-in-stock automations, they recover an additional 3–5% of lost conversions on top of what email alone captures.
That's a second revenue channel, free, available from day one. No other tool in this comparison includes it. To understand how the omnichannel approach compounds results over time, see how email and push notifications work together for Shopify.
Deliverability: Enterprise Infrastructure
PushOwl routes sends through Brevo's enterprise deliverability infrastructure, the same system used by over 500,000 businesses globally. Independent testing places PushOwl's deliverability rate at 97.8%, compared to lower rates on shared-infrastructure tools.
Deliverability is the invisible variable in every email comparison. A 5% difference in inbox placement translates directly to 15–25% more revenue from the same list. Choosing a tool with lower deliverability on a free plan isn't saving money, it's silently losing revenue.
No Branding Watermark. No Subscriber Ceiling. No Upgrade Pressure.
PushOwl's free plan emails go out clean, no "Powered by" badge in your customers' inboxes. Combined with unlimited subscriber storage and the full automation suite, the free plan is designed to be genuinely useful for as long as you need it, not designed to push you to a paid tier in month two.
For a full side-by-side look at PushOwl against the broader field, the complete email marketing platform comparison for Shopify covers more tools in detail.
Scoring Framework: How We Ranked the Three Free Plans
Each category scored 1–10. Weighted by practical impact on a Shopify store's revenue.
Three Switching Scenarios: When Each Tool Actually Makes Sense
Scenario A: You have 0 subscribers and want to start today → Install PushOwl. Unlimited subscriber cap means you never outgrow it during the critical early growth phase. Enable your welcome series and abandoned cart automation in one session. Add web push opt-in to capture visitors who don't give email addresses.
Scenario B: You want the absolute simplest setup and already use Shopify heavily → Start with Shopify Email for basic sends. Recognize you'll need a supplementary tool for back-in-stock alerts, price drops, and anything beyond basic automation. The native integration is genuinely convenient, but plan for the ceiling.
Scenario C: You're testing whether email is worth the investment before committing → PushOwl's free plan gives you the most complete picture of what email marketing can do for your store. Back-in-stock alerts, abandoned cart recovery, and post-purchase sequences all running on day one means your test is meaningful, not limited by an artificially constrained free tier.
The Overall Winner: PushOwl
For a Shopify store's free email plan, the winning tool needs to do three things: not penalize list growth, deliver automation that actually moves revenue, and reach customers through more than one channel.
Shopify Email handles volume but not depth. Omnisend Free handles features but not scale. PushOwl's free plan handles both, and adds web push notifications as a bonus channel no competitor includes at zero cost.
The free plan is the starting point. What matters is whether it gives you enough to build real momentum before you're ever asked to pay. On that measure, PushOwl wins clearly.
Start for free with PushOwl, unlimited subscribers, full automation, web push included →
