Comparison
9 Retention tools already in the catalog. Paid listings sit last, so a sponsor pin is not a ranking. I copied the job, pricing model and verdict below from those listings. The Retention category page keeps the same tools, with sponsored listings pinned on top.
Alternatives pages: Klaviyo, Attentive and Customer.io.
| Tool | Job | Pricing model | Best for |
|---|---|---|---|
| Tranthor | Autonomous ecommerce CRM that finds repeat-purchase moments in Shopify data, drafts email and SMS, and sends within approved limits. | Free plan; paid from $49/mo | Built for the DTC owner who is also running ads and inventory. |
| Klaviyo | B2C CRM for email and SMS marketing, built on ecommerce data, with AI agents. | Free tier up to 250 profiles; paid plans priced by profile count | The incumbent for ecommerce brands running email and SMS off store data. |
| Attentive | AI-powered SMS and email marketing platform for consumer brands. | Quote only; free trial on request | For consumer brands where SMS is a major revenue channel. |
| Rebuy | Shopify personalization for upsells and cross-sells. | Paid plans; quote for enterprise | Incumbent. |
| Loop Returns | Returns and exchanges platform focused on retention. | Paid plans from $155/mo | Turn refunds into exchanges. |
| Ortto | Customer data, marketing automation and analytics in one platform. | Not verified; check pricing page | A good alternative when you want journeys and data together. |
| Listmonk | Self-hosted newsletter and mailing list manager with campaigns, templates and an API. | Free, self-hosted | Newsletter sending for the cost of a server. |
| Mautic | Open source marketing automation with email, segments, lead scoring and landing pages. | Free, self-hosted | The open source HubSpot marketing hub. |
| Customer.io | Sends automated email, push, SMS and in-app messages based on user behavior and product data. | From $100/mo (Essentials); Premium from $1,000/mo billed yearly | For product-led companies that want lifecycle messages triggered by what users do in the product. |
Best for is the opening line of that tool's verdict. The full verdict is below. Pricing is the catalog note, not a quote I calculated.
Autonomous ecommerce CRM that finds repeat-purchase moments in Shopify data, drafts email and SMS, and sends within approved limits.
Built for the DTC owner who is also running ads and inventory. Start on approval mode and only let it auto-send once the drafts sound like you.
B2C CRM for email and SMS marketing, built on ecommerce data, with AI agents.
The incumbent for ecommerce brands running email and SMS off store data. Most DTC brands fit, so before you add another tool, check which core flows you haven't built here yet. Start with abandoned cart and post-purchase.
AI-powered SMS and email marketing platform for consumer brands.
For consumer brands where SMS is a major revenue channel. It's quote-only, so it fits brands with enough subscriber volume to negotiate terms. Ask how pricing scales with subscribers and message volume before you renew.
Shopify personalization for upsells and cross-sells.
Incumbent. Post-purchase upsell is the easiest margin in DTC.
Returns and exchanges platform focused on retention.
Turn refunds into exchanges. Small change, real money.
Customer data, marketing automation and analytics in one platform.
A good alternative when you want journeys and data together.
Self-hosted newsletter and mailing list manager with campaigns, templates and an API.
Newsletter sending for the cost of a server. Pair it with a real SMTP provider and watch deliverability.
Open source marketing automation with email, segments, lead scoring and landing pages.
The open source HubSpot marketing hub. Needs someone to own the server, then it costs almost nothing.
Sends automated email, push, SMS and in-app messages based on user behavior and product data.
For product-led companies that want lifecycle messages triggered by what users do in the product. It fits when engineering can send clean events, since every campaign keys off that data. Agree on event names and properties before you build the first campaign.