Klaviyo is the stronger choice for a Shopify store, and the gap is wider than the two platforms' marketing pages suggest. Constant Contact's entry price looks cheaper, but it has no free plan, its ecommerce automation is shallow next to Klaviyo's, and its own Shopify app rating (2.9 stars, 25 reviews) says more about the real experience than either company's pricing page does. Constant Contact still makes sense for one case: a store that's really running a general newsletter, not ecommerce flows, often tied to a local business or event list.
What does each one actually cost at 500 contacts?
This is where most comparisons go stale fast, so here's what both platforms charge today, verified directly against their own pricing data.
| Plan | Price (500 contacts/profiles) | Free plan? | Monthly email cap |
|---|---|---|---|
| Constant Contact Lite | $12/mo | No (14-day trial) | Unlimited sends, basic email only |
| Constant Contact Standard | $35/mo | No | Adds automation, segmentation, A/B testing |
| Constant Contact Premium | $80/mo | No | Adds advanced automation, custom reporting |
| Klaviyo Free | $0 (250 profiles) | Yes | 500 emails/mo + $5 Composer AI usage |
| Klaviyo Email | $20/mo | Yes (below) | 5,000 emails/mo |
| Klaviyo Marketing | $25/mo (promo: $1 first month) | Yes (below) | 5,000 emails/mo + expanded social/review tools |
The side-by-side numbers flatter Constant Contact's Lite tier, but Lite is nearly featureless: no real segmentation, no automation beyond a welcome or birthday email. The plan a Shopify store would actually need, Standard at $35/month, already costs more than Klaviyo's full Email plan. And Klaviyo's free tier is a real product you can run a small store on; Constant Contact doesn't have one at all, just a trial that ends.
Which one has real ecommerce automation?
Constant Contact's automation is built for broadcast-style senders: a welcome series, a birthday email, a basic drip. Its Shopify app layers abandoned cart reminders and product blocks on top, but the trigger logic underneath stays simple, mostly time-based rather than behavior-based.
Klaviyo's flow builder works off actual store events: a visitor who viewed a product and didn't buy, someone whose cart sat for an hour, a customer who hasn't ordered in 90 days. Each flow branches on what the customer actually did in your store instead of a fixed date on a calendar. That's the difference that shows up in revenue once a store has real order volume: Klaviyo's segments can target "bought X, didn't buy Y" or "lifetime value over $200," conditions Constant Contact's tag-based segmentation can't express.
Do Klaviyo and Constant Contact have AI email writing tools?
Yes to both, and it's the one angle most Klaviyo vs. Constant Contact comparisons skip entirely.
Constant Contact ships an AI copy generator starting on its Lite plan, with AI-driven subject line recommendations added on Standard. It's a genuine first-draft tool: useful for getting unstuck on a blank page, less useful for anything that needs your actual product catalog or brand voice baked in.
Klaviyo's AI tool, Composer, is more deeply wired into your account: it can draft campaign copy using your store's own data. The free plan includes $5 of Composer usage a month. On the paid Email and Marketing plans, Composer is listed as a separate add-on rather than bundled into the base price, which is easy to miss if you're comparing sticker prices alone.
Neither platform's AI writes a finished campaign from your actual product photos and brand guidelines without editing. That's the gap JetFlow fills for stores already on Klaviyo: it reads your store's products, branding, and past campaigns, then generates on-brand emails and popups ready to push straight into Klaviyo, instead of a generic draft you still have to reshape.
Which one should your Shopify store actually pick?
- Running a Shopify store and want automation that reacts to real purchase behavior: Klaviyo. Start free at 250 profiles, move to the $20/month Email plan once your list and send volume grow past that.
- Sending a general newsletter for a local business, event series, or nonprofit alongside a small store: Constant Contact's Standard plan ($35/month) covers basic automation without Klaviyo's steeper learning curve.
- Already tried Constant Contact's Shopify app and found it thin: that matches what its own Shopify App Store page shows, a 2.9-star rating from just 25 reviews, a small and mixed sample next to Klaviyo's 4.7 stars across more than 3,400 reviews.
- Want AI-generated campaigns that actually use your store's products and brand, not a generic first draft: that's a Klaviyo-side question, since that's the platform JetFlow pushes finished emails and popups into today.
The honest limit here
JetFlow only pushes generated campaigns into Klaviyo right now, not Constant Contact. If your store is better served by Constant Contact's simpler, broadcast-style approach, JetFlow won't help you there yet, and that's a fair reason to pick differently than this comparison leans. For stores already on Klaviyo or planning to move to it, JetFlow replaces the blank-page problem: it reads your store and generates the campaign, instead of you starting from an AI copy box or a blank template either way.
If you're still weighing Klaviyo against other platforms, see how it stacks up against Mailchimp and ActiveCampaign, or check the full Klaviyo pricing breakdown by tier. If you've already picked Klaviyo and want to get more out of it, these add-ons are worth a look.