Best AI tools to automate email marketing

Top picks at a glance:

• Klaviyo — Ambitious consumer brands focused on professional marketing and service outreach.
• Hostinger — Users needing a budget-friendly web hosting and AI marketing combination.
• Aiter — Marketers who want to generate assets based on existing website URLs.
• Bika.ai — Teams requiring agentic AI to manage workflows and data-driven communication.
• B12 — Service-based businesses looking for an all-in-one web and client portal.

— means the vendor does not state it on the pages we read.

* pricing not verified against the vendor's pricing page.

How do I choose an AI tool to automate email marketing?

When selecting your tool, first identify whether you require an API connection, as Klaviyo, Hostinger, and Bika.ai support this, whereas Aiter and B12 do not. Assess your budget by comparing the free tiers offered by all five providers against the recurring costs of paid plans, which start at $2.99 for Hostinger and reach $49 for B12. Carefully review the subscription terms; while most services auto-renew, you must decide if you prefer the convenience of in-app cancellation or if you are comfortable with an email-based cancellation process. Additionally, check for specific technical constraints, such as the limited Excel import capabilities in Bika.ai or the potential for paused sending in Klaviyo if established volume limits are exceeded. Match these constraints against your expected campaign volume and technical integration needs.

klaviyo.com

Best for: Ambitious consumer brands focused on professional marketing and service outreach.

This platform serves as a specialized AI solution for managing complex brand communications. It enables you to automate email marketing campaigns while providing a free tier for accessibility. Be aware that the platform monitors your sending volume, as exceeding stated limits may cause the system to pause your campaign delivery.

Create customized email, SMS, and push flows triggered by customer actions.

— klaviyo.com

Pricing, in their words: “Explore Klaviyo's free plan—get started at no cost with email marketing sends, text messages, Customer Hub, and built-in reporting.” (pricing)

Subscription terms they state: cancel in-app · auto-renews (source)

Limits the vendor states:

• If limits are exceeded, sending may be paused

Cancellation & refund terms for Hostinger

hostinger.com

Best for: Users needing a budget-friendly web hosting and AI marketing combination.

Hostinger provides a platform for both website management and the ability to create ai powered email campaigns. The service supports API integration and offers a 30-day refund window. Users must adhere to their usage policies, as they explicitly prohibit spam and do not allow for unlimited usage.

Create and send AI powered email campaigns.

— hostinger.com

Pricing, in their words: “All plans are paid upfront. The monthly rate reflects the total plan price divided by the number of months in your plan.” (pricing)

Subscription terms they state: cancel in-app · auto-renews · 30-day refund window (source)

Limits the vendor states:

• no spam
• no unlimited usage

Best for: Marketers who want to generate assets based on existing website URLs.

This tool focuses on generating marketing content, including the ability to write email campaigns derived from any provided URL. While it offers a free tier, it lacks API support. Success with this tool depends on your website configuration, as some sites may present technical restrictions to the generator.

Blog posts, emails, SEO keywords, video scripts, and strategy frameworks.

— aiter.io

Pricing, in their words: “Monthly Yearly Save 20%+ Free Get started at no cost $0/mo” (pricing)

Limits the vendor states:

• Some websites may have technical restrictions

bika.ai

Best for: Teams requiring agentic AI to manage workflows and data-driven communication.

Bika.ai functions as an organizer that uses AI agents and databases to create automated email sequences. It supports API integration to help standardize team processes. When importing data, note that specific field types like attachments or calculated fields are not supported via Excel.

Create automated follow-up emails, email automation flows, and email reminders efficiently.

— bika.ai

Pricing: Free tier; paid from $16/mo (pricing)

Subscription terms they state: auto-renews (source)

Limits the vendor states:

• Calculated fields, member fields, attachment fields, and relationship fields are not supported in Excel import

b12.io

Best for: Service-based businesses looking for an all-in-one web and client portal.

B12 provides an AI-driven builder to help you automate email marketing alongside website and store management. Subscription plans start at $49 per month and require cancellation via email. The company explicitly states that they do not provide refunds on their services.

Source: b12.io

Pricing, in their words: “The Website plan is $49/month (200 AI credits, up to 20 launched projects), and Website + Client Engagement is $78/month (300 AI credits, up to 30 launched projects)” (pricing)

Subscription terms they state: cancel by email · auto-renews · states no refunds (source)

No usage limits stated on the pages we read.

Which one for your situation?

• You run a growing consumer brand and need a dedicated platform to scale your customer outreach. → Klaviyo: It is an AI marketing and service platform specifically designed for ambitious consumer brands to automate email marketing campaigns.
• You need an affordable, all-in-one solution to build a website and run email campaigns. → Hostinger: It offers an AI-powered website builder and allows you to create ai powered email campaigns starting from $2.99 per month.
• You want to quickly turn your existing website content into promotional emails and marketing materials. → Aiter: It uses your URL to generate content and strategy, allowing you to write email campaigns without requiring an API.
• You need to standardize complex team workflows and trigger email sequences based on database changes. → Bika.ai: It uses agentic AI and databases to create automated email sequences, supporting API integrations for complex team coordination.
• You are a service professional who needs an all-in-one site builder that manages client communication. → B12: It provides a comprehensive AI builder for websites and stores with integrated tools to automate email marketing.

FAQ

Is there a free tool to automate email marketing?

Yes — Klaviyo, Aiter, Bika.ai, B12 offer a free tier.

What is the cheapest paid option to automate email marketing?

Hostinger starts at $2.99/month.

Which of these have an API?

Klaviyo, Hostinger, Bika.ai document a developer API.

How do I cancel these subscriptions?

Klaviyo: cancel in-app; Hostinger: cancel in-app; B12: cancel by email. Aiter, Bika.ai do not state a cancellation route on the pages we read.

Can I get a refund?

Hostinger states a 30-day refund window; B12 states it does not offer refunds. The others (Klaviyo, Aiter, Bika.ai) do not state a refund policy on the pages we read.

Do these subscriptions auto-renew?

Klaviyo, Hostinger, Bika.ai, B12 state that paid plans renew automatically. Check the billing page before subscribing; the rest do not state it either way.

Sources

Every fact above was read from the vendors' own pages:

• Klaviyo: site · pricing · terms — read 2026-08-13
• Hostinger: site · pricing · terms — read 2026-08-04
• Aiter: site · pricing — read 2026-07-31
• Bika.ai: site · pricing — read 2026-08-20
• B12: site · pricing · terms — read 2026-08-20