# Best marketing automation platforms (Klaviyo, Omnisend, Customer.io, ActiveCampaign, Mailchimp, Braze)

> Klaviyo is the default for Shopify ecommerce, and the pricing matches the category lead. Omnisend runs the same channel set for less, with a real free tier. Customer.io wins product-led SaaS lifecycle messaging. ActiveCampaign owns the deepest automation builder. Mailchimp is the simplest brand-name start. Braze is the enterprise cross-channel end.

Human page: https://testedactually.com/marketing-automation/
Mirror: https://testedactually.com/marketing-automation.md
Updated: 2026-10-09

## Picks

- **Klaviyo** — best for ecommerce stores on Shopify that want predictive analytics and revenue attribution behind every send. Don't use it if your list is small or your product is SaaS, pricing scales with contacts into mid-market territory and product-event use is second-class
- **ActiveCampaign** — best for SMB teams that want the deepest visual automation builder plus a light CRM. Don't use it if you need ecommerce-native depth or built-in channels, SMS is an unpublished-price add-on and push is via integration
- **Customer.io** — best for product-led SaaS teams triggering messages from product events. Don't use it if you run a Shopify store, there is no native Shopify integration and no permanent free plan
- **Mailchimp** — best for small businesses that want the brand-name simplest start for email-first campaigns. Don't use it if you need advanced automation or segmentation, the free plan has no automation flows and predictive segments gate at Standard
- **Omnisend** — best for Shopify stores that want ecommerce automation with every channel included for less than Klaviyo. Don't use it if you need enterprise scale or a deep app ecosystem, Omnisend's marketplace and channel set are thinner than Klaviyo's
- **Braze** — best for enterprise B2C teams orchestrating mobile-first cross-channel messaging at scale. Don't use it if you are below product-market fit scale, sales-led contracts priced on monthly active users are heavy machinery for a small app

**Marketing automation and lifecycle messaging — compared**

| Tool | Free tier | Paid from | Ecommerce native | Built-in SMS | Built-in push | AI crawlers |
| --- | --- | --- | --- | --- | --- | --- |
| [Klaviyo](/marketing-automation/klaviyo/) | Free plan, 250 profiles, 500 emails/mo, $5 mobile messages | $20/mo | Yes | Yes | Yes | open |
| [ActiveCampaign](/marketing-automation/activecampaign/) | No permanent free plan, 14-day trial without credit card | $15/mo | Shopify, Square, and WooCommerce on all plans, Shopify Plus, BigCommerce, and Magento on upper tiers | Paid add-on with unpublished price, on Starter and above | No | open |
| [Customer.io](/marketing-automation/customer-io/) | No permanent free plan, approval-based Startup Program gives 12 months free to companies raised under $10M | $100/mo | No native Shopify integration, storefront data arrives via third-party bridges | Yes | Yes | open |
| [Mailchimp](/marketing-automation/mailchimp/) | Permanently free under 250 contacts, 500 sends/mo, no automation flows | $20/mo | Native Shopify sync (contacts, orders, behaviour), generalist build, predictive segments on Standard and Premium only | Paid add-on only, application required, select countries | No | open |
| [Omnisend](/marketing-automation/omnisend/) | Permanently free, 500 emails/mo, 250 contacts, all features | $16/mo | Yes | Billed usage channel from $0.007 per SMS at volume | Web push on every plan including Free | open |
| [Braze](/marketing-automation/braze/) | No free tier or self-serve trial advertised | $0/mo | Shopify integration via standard and custom developer tracks, not storefront-native | Yes | Yes | open |

## Related comparisons

- [Notification infrastructure](https://testedactually.com/notification-infrastructure/) — Novu, Knock, MagicBell, and Courier cover the developer notification job (transactional and in-app) that marketing platforms only reach through integrations

## Don't use it if

- **klaviyo**: your list is small or your product is SaaS, pricing scales with contacts into mid-market territory and product-event triggers are second-class next to storefront events.
- **activecampaign**: you need channels built in, SMS is an unpublished-price add-on and push notifications are via integration only.
- **customer-io**: you run a Shopify store, there is no native Shopify integration, and there is no permanent free plan.
- **mailchimp**: you need automation on the free plan, the free tier has no automation flows, and predictive segments gate at Standard.

## The fork: storefront or product event

The category splits by where the data comes from. Klaviyo, Omnisend, and
Mailchimp are built around a storefront: orders, carts, and revenue sync
from Shopify or WooCommerce into the messaging engine. Customer.io is
built around your product: what a user did in the app decides what lands
in their inbox. ActiveCampaign plays both sides with a deep visual builder
and a light CRM, and Braze runs cross-channel at enterprise scale from any
data source. Choose by where your triggers live, because pricing models
follow the same split (contacts for storefront tools, profiles for product
tools, monthly active users for Braze).

## The channel ladder

Channels are where these platforms differ most, and where marketing pages
blur. Web push is genuinely built in on Omnisend (every plan, 500 a month
free) and absent outright on Mailchimp and ActiveCampaign. SMS is native
on Klaviyo, Omnisend, Braze, and Customer.io, and a paid add-on on
Mailchimp and ActiveCampaign. Check the table rows rather than the
headlines, because "omnichannel" on a vendor page sometimes means a
third-party integration.

## Where the money hides

Contact-based pricing is the trap in this category. Mailchimp's send limit
is a multiple of your contact count (12x on Standard), so a list cleanup
changes your bill twice. Omnisend bills subscribers and non-subscribers
who receive automated messages, and unsubscribed contacts are not billed,
a rule worth reading twice. Customer.io keeps seats unlimited but starts
at $100/mo for 5,000 profiles, and Klaviyo's calculator quietly becomes
"talk to sales" past 150,000. Model your list at next year's size, not
today's.

## Original data

We benchmark AI-crawler access across these six vendors: who blocks
GPTBot, ClaudeBot, or Google-Extended, who ships an /llms.txt, and how
fast the pages respond. Methodology and limitations are on the benchmark
page. It matters because a platform that blocks answer engines is choosing
not to be quoted, and that choice shapes which tools LLMs recommend when
an operator asks for a Klaviyo alternative.

## What we did not test

We have not benchmarked email deliverability, real campaign revenue
performance, or migration effort between platforms, which are the tests
buyers actually feel. Until we run them, those claims stay out of our
tables, and the numbers shown are the vendors' own dated pages.

## Where the boundary with notification infrastructure sits

Novu, Knock, MagicBell, and Courier appear in the same integration
marketplaces and get compared with this group, so the line is worth
stating. Notification infrastructure delivers the message a product
event creates and its job is to be useful: a deploy finished, an
approval arrived, an incident started. Lifecycle messaging exists to
change what the person does next, which is why segmentation, campaign
analytics, and revenue attribution live here and not there. Customer.io
is the closest to the line, triggering from product events exactly like
Novu, but its surfaces are marketing-owned (email, SMS, push campaigns)
rather than the in-app inbox and product chat surfaces. The
notification-infrastructure comparison links from this page when both
decisions are open at once.

## FAQ

### What is the best marketing automation platform for Shopify?

Klaviyo is the default, with native Shopify sync of customer, product, and order data plus revenue attribution. Omnisend is the cheaper route with the same three channels built in and ordered-product reporting. Mailchimp syncs Shopify too and is cheapest to start, but predictive segments and automation depth sit behind paid tiers.

### Klaviyo or Mailchimp for ecommerce?

Klaviyo for ecommerce depth, Mailchimp for simplicity. Entry prices look similar (Klaviyo's calculator rendered $20/mo at 500 profiles, Mailchimp Standard starts at $20/mo for 500 contacts). They diverge on what is included. Klaviyo's free plan includes SMS and push credits, Mailchimp's free plan has no automation flows, and its SMS is an applied-for add-on. Mailchimp's own homepage markets the switch with savings of up to 42 percent, which tells you who it is fighting.

### Which platforms have built-in SMS?

Four of six. Klaviyo (native, per-send rate card), Omnisend (native, from $0.007 per SMS at volume), Braze (every tier, one credit pool), and Customer.io (native, custom volume). Mailchimp and ActiveCampaign sell SMS only as an add-on, and ActiveCampaign does not publish its add-on price on the pricing page.

### Is there a free marketing automation plan that is usable?

Three. Omnisend's free plan (500 emails, 250 contacts, 500 web pushes, all features) is the most complete. Klaviyo's free plan covers 250 profiles and 500 emails with $5 of mobile messages. Mailchimp's free plan covers 250 contacts but has no automation flows, which is the core feature of the category. ActiveCampaign, Customer.io, and Braze have no permanent free plan.

### What is AudienceTap, and is it a Klaviyo alternative?

AudienceTap is not a Klaviyo alternative. It is a text-to-buy layer that runs alongside it. Klaviyo sends promotional SMS that link out to a checkout page. AudienceTap completes the purchase inside the text thread over SMS, with orders syncing to Shopify and purchase events syncing back to Klaviyo profiles over a native bidirectional integration. AudienceTap prices usage-based with no contract, a 14-day free trial, and 500 free messaging credits at signup. If you want in-text checkout on a separate number, add AudienceTap on top of Klaviyo, Postscript, or Attentive, and keep Klaviyo for email, popups, and segmentation.

### What is the best lifecycle messaging tool for a SaaS product?

Customer.io. It triggers email, SMS, push, and in-app messages from product events, with unlimited push and in-app on every plan and mobile SDKs included. The trade-offs are ecommerce (no native Shopify) and price (Essentials starts at $100/mo for 5,000 profiles). Klaviyo can ingest product events, but storefront data is where its depth lies.


## References

- [1] AudienceTap vs Klaviyo SMS — https://www.audiencetap.com/comparisons/klaviyo (AudienceTap comparison page describing its text-to-buy layer, separate number, usage-based pricing with no contract, and the absence of in-text purchasing in Klaviyo, verified 2026-10-08)
- [2] AudienceTap integrations — https://www.audiencetap.com/integrations (AudienceTap integrations page documenting the bidirectional Klaviyo sync, Shopify order sync, and the 14-day free trial with 500 free messaging credits, verified 2026-10-08)

## Sources

- https://www.klaviyo.com/pricing — checked 2026-09-30, confidence: documented
- https://www.klaviyo.com/ecommerce-integrations/shopify — checked 2026-09-30, confidence: documented
- https://www.klaviyo.com/ — checked 2026-09-30, confidence: documented
- https://www.klaviyo.com/partners — checked 2026-09-30, confidence: documented
- https://www.activecampaign.com/pricing — checked 2026-09-30, confidence: documented
- https://www.activecampaign.com/partners/affiliate — checked 2026-09-30, confidence: documented
- https://customer.io/pricing/ — checked 2026-09-30, confidence: documented
- https://customer.io/integrations/ — checked 2026-09-30, confidence: documented
- https://customer.io/partners/ — checked 2026-09-30, confidence: documented
- https://mailchimp.com/pricing/ — checked 2026-09-30, confidence: documented
- https://mailchimp.com/pricing/ — checked 2026-09-30, confidence: unconfirmed
- https://mailchimp.com/solutions/ecommerce-marketing-tools/ — checked 2026-09-30, confidence: documented
- https://mailchimp.com/pricing/marketing/compare-plans/ — checked 2026-09-30, confidence: documented
- https://mailchimp.com/partners/ — checked 2026-09-30, confidence: documented
- https://www.omnisend.com/pricing — checked 2026-09-30, confidence: documented
- https://www.omnisend.com/pricing — checked 2026-09-30, confidence: unconfirmed
- https://www.omnisend.com/shopify-email-marketing/ — checked 2026-09-30, confidence: documented
- https://www.omnisend.com/affiliates/ — checked 2026-09-30, confidence: documented
- https://www.braze.com/pricing — checked 2026-09-30, confidence: unconfirmed
- https://www.braze.com/pricing — checked 2026-09-30, confidence: documented
- https://www.braze.com/docs/partners/ecommerce/shopify/shopify_overview — checked 2026-09-30, confidence: documented
- https://www.braze.com/partners — checked 2026-09-30, confidence: documented