Best Shopify Email App for Under 100 Subscribers
If you're running a Shopify store with fewer than 100 email subscribers, you're in a specific and often overlooked spot. Most email platforms are built (and priced) for lists in the thousands, so the "free tier" question becomes the only question that matters. Here's the good news: several genuinely capable apps will handle your first 100 subscribers at no cost, and one of them is already sitting inside your Shopify admin. The trick is picking the one whose free plan won't strangle you the moment you hit 101.
Why Your First 100 Subscribers Shouldn't Cost You Anything
Your first hundred subscribers are the hardest hundred you'll ever get. You're paying for traffic, testing popups, and burning hours on content — all before email has earned you a single dollar. Paying $20–$50 a month at this stage is a straight loss, and it trains you to think of email as a cost center instead of a growth channel.
Every major email platform knows this, which is why they all offer free tiers in the 250–500 contact range. The catch is that "free" means different things on each platform. Some free plans include automations; some don't. Some include segmentation; some lock it behind a paid plan. Some integrate cleanly with Shopify; some make you fight the sync.
Your job is to find the free plan whose limits you can live with for six months, not the one with the biggest contact number.
How We Ranked These Shopify Email Apps
We judged each app on criteria that actually matter at the sub-100-subscriber stage:
- Free contact cap — how many subscribers before you're forced to pay
- Shopify integration depth — does it sync products, orders, and browse behavior natively, or through a brittle third-party connector?
- Free-plan automations — welcome sequences, abandoned cart, browse abandonment
- Sending limits — monthly email caps, which many sellers ignore until they hit them
- Signup form quality — popups, embedded forms, and whether they're usable without a paid plan
- Exit cost — how painful it is to export your list and leave later
We did not rank on deliverability claims, because every platform claims the same thing and the honest answer is that your list hygiene matters more than your vendor.
Shopify Email: The Built-In Free Option (and Its Limits)
Shopify Email lives in your admin under Marketing → Campaigns. You get a monthly free sending allowance (check current pricing and allowances directly in your Shopify admin, as Shopify adjusts these periodically), and it's the only option on this list that requires zero setup — no app install, no API key, no account creation.
What works well: product blocks pull directly from your catalog, your customer list is already there, and templates are pre-styled for ecommerce. For a store doing one or two campaigns a month to a small list, it's genuinely enough.
Where it breaks down: automation is thin. You get a basic welcome flow, but abandoned cart and browse abandonment automations are limited compared to dedicated platforms. Segmentation is basic. And if you ever want to move to a "real" email platform, you'll be starting from scratch on flows and templates.
Verdict: the right starting point if you're pre-revenue and want zero friction. Not the right long-term home.
Klaviyo: Powerful Free Tier, but Watch the 250-Contact Cap
Klaviyo is the platform most Shopify sellers graduate to, and its free tier covers up to 250 contacts with a monthly send allowance (verify current numbers — Klaviyo changes these). That's more than double your current list size, which means you can grow for a while before paying.
The real draw is automation. Klaviyo's flows are the most mature in ecommerce: welcome series, abandoned cart, browse abandonment, post-purchase, winback. Even on the free plan you can build these, and they'll keep running as you grow. Klaviyo also syncs deeply with Shopify — order history, product views, and predicted customer lifetime value all feed into segmentation.
The catch: 250 contacts sounds generous until you realize a single popup campaign can add 40 people in a week. You'll hit the cap faster than you think, and Klaviyo's paid plans are priced on contact count, so the jump can sting. Also, the interface is dense. If you've never built an email flow, budget a weekend to learn it.
Verdict: best free tier for sellers who plan to scale and want to build automations once, correctly.
Mailchimp: Free Up to 500 Contacts, but Shopify Integration Gotchas
Mailchimp's free plan covers up to 500 contacts with a monthly send cap (check current limits). On paper that's the most generous contact allowance here, and Mailchimp's drag-and-drop builder is the easiest to learn of any platform on this list.
The problem is Shopify. Mailchimp's native Shopify integration has historically been limited — product recommendations and purchase data don't flow as cleanly as they do into Klaviyo or Omnisend, and some ecommerce automations require paid plans or third-party connectors like Zapier. You can absolutely run a newsletter through Mailchimp, but running a store through it takes more duct tape.
Verdict: fine if you already know Mailchimp or want the simplest possible editor. Not the best fit for ecommerce-specific automation.
Omnisend: Free for 500 Contacts with Strong Ecommerce Automations
Omnisend's free plan covers up to 500 contacts with a monthly email send allowance (verify current terms on their pricing page). What makes it stand out is that ecommerce automations — welcome, abandoned cart, order confirmation — are available on the free tier, not locked behind a paywall. It also supports SMS alongside email, which matters if you want to test text-based abandoned cart reminders later.
Omnisend's Shopify integration is native and solid: it pulls product data, order history, and browse behavior. The form builder is clean, and the pre-built automation templates are actually usable without heavy editing.
The catch: the free plan's monthly send cap can be tight if you're emailing frequently, and the platform pushes you toward paid tiers with upsell prompts inside the dashboard.
Verdict: the best all-around free tier for a small Shopify store that wants real automations from day one.
Other Contenders Worth a Look Under 100 Subscribers
A quick comparison of the main options:
| App | Free Contact Cap | Shopify Sync | Free Automations | Best For |
|---|---|---|---|---|
| Shopify Email | Tied to Shopify plan | Native (built-in) | Basic welcome | Zero-setup starters |
| Klaviyo | 250 contacts | Deep, native | Full flow builder | Sellers planning to scale |
| Mailchimp | 500 contacts | Limited native | Restricted on free | Simple newsletters |
| Omnisend | 500 contacts | Native | Welcome, cart, order | Ecommerce-first small stores |
Beyond these four, a few others are worth knowing:
- MailerLite — generous free tier, clean editor, decent Shopify integration via app
- Brevo (formerly Sendinblue) — free plan includes transactional email, useful if you send order updates
- Sender — free tier with automation included, less polished Shopify sync
- Klaviyo's Shopify App Store listing is worth reading for integration specifics before you commit
Which App Should You Pick First?
Here's the decision in plain terms:
- You haven't sent a single campaign yet and want zero setup: start with Shopify Email. Send two campaigns, learn what your list responds to, then migrate.
- You want to build automations once and never rebuild them: go with Klaviyo. Accept the 250-contact cap as a growth deadline.
- You want the most contacts and real ecommerce flows for free: Omnisend is the strongest fit for a Shopify store under 100 subscribers.
- You already use Mailchimp elsewhere: stay, but don't expect deep Shopify data.
Whichever you choose, the migration path matters. All four platforms let you export subscribers as CSV, so you're never truly locked in — but automations and templates don't export. Build your flows in the platform you intend to keep.
One last thing: at under 100 subscribers, your signup form matters more than your email platform. A well-placed popup with a genuine incentive (10% off, free shipping) will grow your list faster than any feature difference between these apps.
Conclusion
For a Shopify store with fewer than 100 subscribers, Omnisend and Klaviyo offer the best combination of a usable free tier and real ecommerce automation, while Shopify Email is the fastest zero-friction start. Pick based on whether you want to build automations now (Klaviyo, Omnisend) or just start sending (Shopify Email). Whichever you choose, verify current pricing and contact caps directly on each platform's site before committing, since these change regularly.
FAQ
Can I use more than one email app at the same time? Technically yes, but don't. Running two platforms splits your subscriber data, doubles your unsubscribes, and makes it impossible to know which channel is driving revenue. Pick one and commit.
What happens when I outgrow the free tier? You'll get an upgrade prompt or hit a sending cap. At that point, compare paid plans based on your actual subscriber count — most platforms price in tiers, so a jump from 250 to 500 contacts is usually cheaper than a jump from 500 to 1,000.
Do I need an email app at all if I have Shopify Email? Not immediately. Shopify Email handles basic campaigns fine. You'll want a dedicated app once you need abandoned cart sequences, segmentation, or SMS — usually somewhere between 100 and 300 subscribers.