AI Marketing Tool Comparison 2026: HubSpot, Salesforce Einstein, Marketo, Shopify Magic and 6 More (Pricing & Free Plans)

You may want to adopt an AI marketing tool, but the sheer number of options can be overwhelming. Pricing structures are complex, and whether a free plan is available and the extent of Japanese support vary significantly from one tool to another. Additionally, you need specific comparisons to identify the features that fit your business.

This article compares 10 major tools, including HubSpot AI and Salesforce Einstein. Based on AIpedia data (as of November 2026), we have organized information on pricing, free plan availability, Japanese support, and platforms. We also explain the strengths and weaknesses of each tool and clarify things to note during implementation.

We also summarize recommendations by goal and how to choose without making mistakes. Please check the official website for the latest pricing and features. Use this as a reference when selecting an AI marketing tool that fits your needs.

What Are AI Marketing Tools? What They Can Do and What to Know Before Choosing

AI marketing tools go beyond simple text generation. They integrate with CRM systems, e-commerce sites, and social media management tools to expand business capabilities, from analyzing customer data to generating ad creatives. For example, HubSpot AI and Salesforce Einstein enable deal scoring and automated sales email generation. Shopify Magic assists with product descriptions and image editing, while AdCreative.ai creates banner ad designs in seconds.

• Automated content creation: AI generates social media posts, ad copy, and product descriptions. Buffer AI Assistant and Hootsuite OwlyWriter AI also offer tone adjustment and translation features.
• Customer data analysis and utilization: Based on purchase history and behavioral data, the tools provide personalized recommendations. Apollo.io specializes in lead generation and scoring.
• Efficient support via chatbots: Tools like ManyChat allow you to build automated replies for Instagram and Messenger DMs.
• Optimization of marketing strategies: Features include A/B testing and optimizing delivery timing to enhance campaign effectiveness.

When selecting a tool, check the scope of the free plan and whether Japanese support is available. Buffer AI Assistant allows use of AI features even on the free plan, but Apollo.io does not support a Japanese UI. Also, note that Shopify Magic assumes a specific e-commerce platform, and Adobe GenStudio is for businesses with individual quotes.

Differences in usage environments and target user segments are also key points. Some tools are web-only, while others support iOS or Android apps. Simple tools for individuals and small teams differ significantly from business-oriented tools with advanced analytics features in terms of implementation costs and ease of use. Choosing an environment and scale that fits your company's workflow is the key to a successful implementation.

Comparison of Top 10 Tools (Pricing, Japanese Support, Platforms)

Tool	AIpedia rating	Main plans	Japanese support	Platforms
HubSpot AI	4.4	Free tools / Starter $20/seat/month (¥2,400) / Professional from $890/month (¥106,800, includes 3 seats, annual contract)	Supported	Web, iOS, Android
Salesforce Einstein	4.3	Free Suite (free) / Starter Suite $25 (¥3,000) / Pro Suite $100 (¥12,000)	Supported	Web, iOS, Android
Marketo Engage	4.2	Growth / Select / Prime	Supported	Web
Shopify Magic	4.3	Included in Shopify plans (Basic from $39/month) / Shopify Plus from $2,300/month / No additional AI fees	Supported	Web, iOS, Android
Adobe GenStudio	4.3	For enterprises (contact sales) / GenStudio for Performance Marketing is part of Adobe Experience Cloud	Supported	Web
Hootsuite OwlyWriter AI	4.2	Professional $99/month / Team $249/month / Enterprise (contact sales) (OwlyWriter AI is included in all plans)	Partially supported	Web, iOS, Android
Buffer AI Assistant	4.2	Free (3 channels) / Essentials $6/channel/month / Team $12/channel/month / AI features are included in all plans	Partially supported	Web, iOS, Android
AdCreative.ai	4.2	Starter $25/month (10 credits/month) / Professional $50/month / Ultimate $149/month	Partially supported (UI is in English, Japanese copy generation available)	Web
ManyChat	4.2	Free plan (up to 1,000 contacts) / Pro from $15/month (based on number of contacts) / Premium (contact sales)	Partially supported	Web, iOS, Android
Apollo.io	4.3	Free plan (basic features) / Basic $49/month / Professional $79/month	Not supported	Web

Ratings are out of 5 points, assigned by the AIpedia editorial team. Pricing and plans may change. Please check the official website of each tool for the latest information before signing a contract.

Features, Pricing, and Best For: 10 Tools

1. HubSpot AI

HubSpot AI (Breeze) is the collective term for the AI features integrated into the HubSpot CRM platform. It works with tools like Marketing Hub and Sales Hub to support customer data utilization and business automation. With AI assistants and AI agents, you can streamline customer support and lead generation.

• Strengths: It integrates closely with customer data and behavioral history within the CRM, resulting in high personalization accuracy. Unlike standalone AI tools, it optimizes the entire business process.
• Strengths: The AI assistant “Breeze Assistant” is included at no extra cost on every plan, including the free tools. It supports natural language data search and email drafting, making it easy to expand gradually.
• Strengths: It offers Japanese support for screen displays, support, content creation, and call transcription. It also holds a SOC 2 Type 2 report, indicating attention to security.
• Things to note: Advanced features like lead scoring and A/B testing are available only on Professional plans or higher. Therefore, you may need to upgrade to more expensive plans as needed.
• Things to note: AI agent operations consume HubSpot credits. Also, note that Professional and Enterprise plans require separate implementation support fees.

Pricing: Free tools / Starter $20/seat/month (¥2,400) / Professional from $890/month (¥106,800, includes 3 seats, annual contract) / Enterprise from $3,600/month (¥432,000, includes 5 seats, annual payment) *Pro and Ent require separate implementation support fees

Best for: Ideal for companies already using or considering implementing HubSpot CRM. It suits business professionals who want to centrally manage marketing, sales, and customer service, or achieve advanced personalization and business automation based on customer data. It is effective to start with the free tools to check basic features and gradually expand the scope of implementation as needed.

View detailed features, pricing, and FAQ for HubSpot AI

2. Salesforce Einstein

Salesforce Einstein is the collective term for AI features integrated into Salesforce CRM. It provides features that support sales operations, such as deal scoring and sales email generation. Since 2025, its structure has centered on AI agents that autonomously execute tasks.

• Strengths: Natively integrated with Salesforce CRM, it enables smooth synchronization of customer data.
• Strengths: Deal and lead scoring allow you to focus on high-priority cases.
• Strengths: Official Japanese support began in June 2025, creating an environment that is easy to use domestically.
• Things to note: Since a Salesforce license is required, initial costs tend to be high.
• Things to note: The AI in Starter Suite and Pro Suite only supports automatic synchronization of emails, schedules, and contacts. Deal scoring, sales email generation, and conversation analysis are available on Core ($195) or higher. Implementation and customization require specialized knowledge from a Salesforce administrator.

Pricing: Free Suite is free. Starter Suite is $25 (¥3,000), and Pro Suite is $100 (¥12,000). Core is $195 (¥23,400), Advanced is $395 (¥47,400), and Max is $550 (¥66,000). All are monthly per user. Pro Suite and above require annual contracts. The Agentforce for Sales add-on starts at $125.

Best for: Businesses already using Salesforce, or those prioritizing sales team efficiency and data integration. For small and medium-sized businesses, the features and costs may be excessive. Verify the required features and edition before choosing. Check the official website for the latest pricing and features.

3. Marketo Engage

Adobe Marketo Engage is a marketing automation tool for B2B companies. It specializes in automated email delivery and lead nurturing. You can use it with generative AI for email creation support or combine it with AI agents. It is designed to improve lead quality using predictive analytics and enable efficient sales collaboration.

• Strengths: Features advanced B2B-specific automation and AI-powered content creation support. Uses predictive analytics to identify promising customer segments for precise approaches.
• Strengths: Integrates with the Adobe ecosystem and supports large-scale lead management. The interface supports six languages, including Japanese, making it easy to operate domestically.
• Things to note: Pricing is not public and requires individual quotes, which can make budget planning difficult. It tends to be expensive for small and medium-sized businesses, and implementation setup requires specialized knowledge.
• Things to note: The generative AI features in Dynamic Chat support English only. Also, SNS features have been discontinued.

Pricing: Growth / Select / Prime / Ultimate all require inquiry (quotes based on 1,000 contacts; includes 100,000 to 500,000 AI credits)

Best for: Companies wanting to highly automate lead nurturing in complex B2B sales processes. Recommended if you want to strengthen approaches to key accounts using predictive content features or ABM (Account-Based Marketing). However, no free plan is offered, so you must subscribe to a paid package and confirm individual quotes. Check the official website for the latest pricing and features.

See detailed features, pricing, and FAQ for Marketo Engage

4. Shopify Magic

Shopify Magic is a set of AI features built into the e-commerce platform “Shopify.” It automatically generates product descriptions and supports store operations via the AI chat assistant “Sidekick.” It also includes editing features such as removing or replacing product image backgrounds.

• Strengths: Included in all Shopify plans (Basic $39/month and up), with no additional AI fees. It directly references product data and inventory information, delivering accurate outputs tailored for e-commerce.
• Strengths: Sidekick can handle tasks like sales analysis and discount settings using natural language. Product descriptions support over 20 languages and can be optimized for SEO.
• Strengths: You can generate hundreds to thousands of product descriptions in bulk. It also supports AI-powered email creation integrated with Shopify Email (free up to 10,000 emails/month), as well as removing or replacing backgrounds in product images.
• Things to note: It is limited to use on Shopify and cannot be used on other e-commerce platforms. Japanese product descriptions may lack the naturalness and persuasiveness of English ones. Sidekick also tends to provide more accurate answers to complex questions in English.
• Things to note: Human review is required to ensure AI-generated text matches your brand tone. Advanced customization and API integration require developer knowledge, such as Liquid.

Pricing: Included in Shopify plans (Basic $39/month and up) / Shopify Plus $2,300/month and up / No additional AI fees

Best for: Businesses running e-commerce on Shopify that seek to improve efficiency in tasks like product descriptions and email creation. It is also suitable for those who want to create high-quality product images without a professional studio setup, or who want to deepen their e-commerce knowledge by using Sidekick.

5. Adobe GenStudio

Adobe GenStudio is an enterprise-oriented AI marketing content creation platform provided by Adobe. It can generate large volumes of ads and social media posts that comply with brand guidelines. It also supports direct ad submission to Meta, Google, and TikTok.

• Strengths: It learns brand guidelines such as logos, colors, fonts, and tone, allowing you to create large volumes of ads, social media posts, and emails that align with them. Images are generated using Adobe Firefly, which includes IP indemnification for commercial use (please check the official website for conditions).
• Strengths: You can connect ad performance data to improve content, and created assets can be further edited in tools like Photoshop.
• Things to note: As it is designed for enterprises, the barrier to entry is high for individuals and small-to-medium businesses, and pricing is not publicly disclosed. It also increases dependency on Adobe products.

Pricing: Enterprise-oriented (contact sales) / GenStudio for Performance Marketing is part of Adobe Experience Cloud

Best for: Companies that prioritize brand consistency and produce large-scale marketing content. It is also suitable for teams already using the Adobe product ecosystem.

6. Hootsuite OwlyWriter AI

Hootsuite OwlyWriter AI is an AI social media content creation tool integrated into Hootsuite. It generates post copy for major social networks like Instagram and X (Twitter) in formats optimized for each platform. Simply enter a URL or topic, and it will suggest multiple post drafts, including captions and hashtags.

• Strengths: Automatically generates post copy tailored to all major social networks, and suggests hashtags and CTAs.
• Strengths: The recycling feature, which creates new variations based on past high-performing posts, is convenient.
• Strengths: Seamlessly integrates with Hootsuite's post scheduling and analytics features. AI also supports optimizing posting times and detecting trends.
• Things to note: Be aware that the cost of the Hootsuite plans themselves is relatively high.
• Things to note: Japanese output quality may be slightly inferior compared to English.

Pricing: Professional $99/month / Team $249/month / Enterprise (contact sales) (OwlyWriter AI is included in all plans)

Best for: Ideal for those who want to manage multiple social networks centrally and handle everything from content planning to analytics as a team. However, since manual fine-tuning may be required to adjust the tone of AI-generated content, it suits users in an environment where they can thoroughly perform final checks.

7. Buffer AI Assistant

Buffer AI Assistant is an AI assistant feature integrated into the social media management tool Buffer. Simply enter a topic or URL to automatically generate post copy optimized for each platform, such as Instagram or X (Twitter). It can also convert existing posts to different tones and summarize long-form content into social media posts.

• Strengths: You can create posts with AI even on the free plan, making it easy to get started. It can also translate posts into multiple languages.
• Strengths: The UI is simple and intuitive, reducing the effort needed to learn how to use it.
• Strengths: Billing is per channel, so costs are easier to keep low for small-scale usage.
• Things to note: Advanced analytics and reporting features for large teams are limited, and enterprise-level features are fewer than those in Hootsuite.
• Things to note: There is room for improvement in Japanese output quality.

Pricing: Free (3 channels) / Essentials $6/channel/month / Team $12/channel/month / AI features are included in all plans.

Best for: Ideal for individual creators, startups, and small businesses looking to streamline social media operations. It suits those who want to manage post schedules simply while receiving AI support at an affordable price.

8. AdCreative.ai

AdCreative.ai is a tool that automates the creation of ad creatives using AI technology. Simply upload brand colors, logos, and product images to automatically generate banner ads, social media ads, and video ads in seconds. Its proprietary AI model has learned from millions of ad data points and suggests optimal design patterns and copy for your industry and target audience.

• Strengths: Outputs creatives optimized for major advertising platforms such as Google Ads, Meta, and LinkedIn.
• Strengths: Includes features to analyze competitors' ad creatives and develop differentiation strategies.
• Strengths: Can generate multiple variations in bulk for A/B testing, allowing for efficient validation.
• Things to note: Japanese copywriting accuracy may be slightly lower, so final expression checks are necessary.
• Things to note: Because it is template-based, achieving fully custom designs is difficult.

Pricing: Starter $25/month (10 credits per month) / Professional $50/month / Ultimate $149/month / Enterprise (contact sales). The number of credits is relatively low for the monthly fee.

Best for: Ideal for those who want to quickly produce high-quality creatives for major ad platforms without design knowledge. It also suits business professionals looking to differentiate their ad strategies by leveraging competitor analysis.

View detailed features, pricing, and FAQ for AdCreative.ai

9. ManyChat

ManyChat is an AI chatbot automation platform for Instagram, Messenger, and WhatsApp. Its no-code flow builder allows you to intuitively build scenarios such as automated DM replies, lead generation, and sales promotion. Used by over 1 million businesses, it has become widely adopted as a marketing automation tool that leverages social media DMs.

• Strengths: You can automate a wide range of social media engagement, including automatic replies to Instagram comments and sending DMs in response to story interactions. AI features enable automated answers to questions, conversation intent analysis, and personalized message generation.
• Strengths: The free plan supports up to 1,000 contacts, making it easy for small businesses to adopt at a low cost. It also integrates with CRM systems like Shopify and HubSpot.
• Things to note: The interface does not support Japanese, so English knowledge is required for operation. Also, be aware that designing complex flows requires a certain amount of learning effort.

Pricing: Free plan (up to 1,000 contacts) / Pro from $15/month (based on number of contacts) / Premium (contact sales)

Best for: Ideal for those who want to automate DM handling efficiency and sales promotion using Instagram or WhatsApp as their main channels. It is especially recommended for marketing managers who want to build advanced chat flows without writing code.

10. Apollo.io

Apollo.io is a B2B sales intelligence platform featuring a contact database of over 275 million records. It uses AI to centralize everything from lead generation to email distribution and pipeline management. It functions as a tool aimed at improving sales team productivity.

• Strengths: The free plan allows up to 10,000 emails per month, lowering the barrier to entry.
• Strengths: AI-powered lead scoring and automatic email generation features contribute to workflow efficiency.
• Strengths: It supports two-way synchronization with CRMs like Salesforce and HubSpot, making it easy to integrate into existing environments.
• Things to note: The interface does not support Japanese, so English knowledge is required for operation.
• Things to note: Data for Japanese companies is less abundant compared to Europe and the US, and data accuracy varies. Access to all features requires the Organization plan ($149/month).

Pricing: Free plan (basic features) / Basic $49/month / Professional $79/month / Organization $149/month

Best for: Ideal for those seeking efficient lead generation and email marketing in B2B sales. It is especially recommended for sales teams at startups or small and medium-sized enterprises who want to try it out first using the free plan. However, if you need detailed data specific to the Japanese market, you may need to consider using it alongside other domestic data sources.

Recommendations by Goal

Goal	Recommended	Reason
Want to try it for free first	Buffer AI Assistant, Apollo.io	The free plan includes basic features such as AI post generation and email sending.
Prioritize creating Japanese text	HubSpot AI, Salesforce Einstein	HubSpot AI offers a Japanese interface and support, with AI content creation and transcription supporting Japanese. Salesforce Einstein has a Japanese interface, and its AI agents officially added Japanese support in June 2025.
Streamline e-commerce site operations	Shopify Magic	Automatic product description generation and store operation assistance are included in Shopify plans at no extra cost.
Strengthen B2B sales lead acquisition	Apollo.io	It provides a rich contact database and AI-based lead scoring features.
Automate and streamline social media management	ManyChat, Hootsuite OwlyWriter AI	AI assists with social media-specific tasks such as automatic DM replies and post copy generation.
Create brand-compliant ad creatives	AdCreative.ai, Adobe GenStudio	AI automatically generates designs and copy that follow brand guidelines.
Automate B2B lead nurturing	Marketo Engage	You can combine automatic email distribution and lead scoring with generative AI email writing assistance and AI agents.

The above reflects general trends based on data. Please check the official website for the latest information on specific feature scopes and pricing.

How to Choose Without Regrets

Check the introduction cost and whether a free tier is available

Pricing structures vary significantly by tool. Buffer AI Assistant and ManyChat offer free plans, making them ideal for small-scale use.

In contrast, Adobe GenStudio and Marketo Engage require individual quotes, which can make budget planning difficult.

Specifically verify the scope of Japanese support

Even if a tool is labeled as "supported," quality and coverage vary by feature. HubSpot AI provides the interface and support in Japanese. Its AI features support Japanese for content creation and transcription. Marketo Engage supports Japanese in the interface, but its Dynamic Chat generative AI is English-only.

Apollo.io does not support Japanese. This may limit data availability and usability when conducting sales activities with domestic companies.

Evaluate integration with existing platforms

It is important to consider integration with existing systems rather than using the tool in isolation. Salesforce Einstein assumes use within a Salesforce environment.

Shopify Magic is limited to the Shopify platform. Therefore, it cannot be implemented if you are using another e-commerce platform.

Compare the depth of features suited to your business needs

For social media management, Hootsuite OwlyWriter AI specializes in analytics. For ad creation, AdCreative.ai specializes in creative generation.

If your goals are not clear, there is a risk that you will not fully utilize the advanced features of high-priced plans even after subscribing.

Assess the operational structure and learning cost

Marketo Engage and Adobe GenStudio may require specialized knowledge, which can increase the operational burden after implementation.

The team's workload changes depending on whether you choose a simple UI like Buffer AI Assistant or prioritize feature richness.

FAQ

Q. Which tools can I start with on a free plan?

Five tools offer free plans: HubSpot AI, Salesforce Einstein, Buffer AI Assistant, ManyChat, and Apollo.io. Notably, Buffer allows you to use its AI post generation feature for free, while ManyChat is available for up to 1,000 contacts. Apollo.io supports sending 10,000 emails per month on its free plan.

Q. What is the status of Japanese support?

HubSpot AI (interface, support, content creation), Salesforce Einstein, Marketo Engage (interface), Shopify Magic, and Adobe GenStudio support Japanese. On the other hand, Apollo.io does not support Japanese, and ManyChat lacks Japanese UI support. Hootsuite OwlyWriter AI and Buffer AI Assistant offer partial support, but output quality may be inferior compared to English.

Q. Which tool has the lowest pricing?

In terms of monthly fees, the Buffer AI Assistant Essentials plan is available from $6/channel/month. Next are the ManyChat Pro plan (from $15/month), the HubSpot AI Starter plan ($20/seat/month), and the AdCreative.ai Starter plan and Salesforce Starter Suite (both $25/month). For HubSpot and Salesforce, costs vary based on the number of seats or users.

Q. Are there tools suitable for individuals or small teams?

We recommend Buffer AI Assistant because it is simple, has a low learning curve, and can be started with a free plan. ManyChat is also suitable as it allows you to build chat flows without code and specializes in Instagram management. Shopify Magic is aimed at e-commerce businesses, but its appeal lies in being able to use AI features at no additional cost.

Q. What are the things to note before implementation?

Marketo Engage and Adobe GenStudio have undisclosed pricing and require individual quotes, so budget verification is important. Salesforce Einstein requires a license as a prerequisite, which tends to result in high initial costs. Additionally, using AI features in many tools may consume credits or require specialized knowledge, so please check the details on the official website.

Q. If choosing alongside a CRM, which is better: HubSpot AI or Salesforce Einstein?

If you want to start small, choose HubSpot AI. You can use it from free tools, and the AI assistant is included in all plans at no extra cost. Lead scoring and A/B testing are available on the Professional plan (from $890/month including 3 seats) or higher, with separate implementation support fees. Salesforce Einstein can be started with the Free Suite, but AI features such as deal scoring and sales email generation require the Core plan ($195/month per user) or higher, and Pro Suite or above requires an annual contract. If you already use a CRM, trying its AI features first is the most direct approach.

Summary

This article compared 10 tools, from HubSpot AI to Apollo.io. Each tool excels in different areas, such as CRM integration, social media management, and ad creation.

Pricing models vary widely, ranging from free plans to enterprise options. It is important to evaluate them based on your budget and required features. Please check the official website for the latest information.

• CRM and sales process integration: HubSpot AI (smooth data integration)
• Small-scale social media management: Buffer AI Assistant (AI features available on the free plan)
• B2B lead generation: Apollo.io (extensive database and AI support)

View all AI marketing tools (11 items)