AI Education & Learning Tool Comparison 2026: Duolingo Max, Speak, ELSA Speak and 7 More (Pricing & Free Plans)

When choosing an AI education and learning tool, many people are unsure about pricing structures, the availability of free plans, and the level of Japanese support. Many also want to accurately understand each tool's strengths and limitations.

This article compares 10 major tools, including Duolingo Max and Speak, based on data listed on AIpedia as of November 2026. It covers pricing, free plan availability, Japanese support, and platforms. It also organizes the pros and cons of each tool.

We also provide recommendations by goal, tips on how to choose without making mistakes, and answers to frequently asked questions. We have comprehensively summarized the information you need to know before getting started. Please use this as a reference.

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

AI education and learning tools are applications that use artificial intelligence to support learners based on their comprehension level and progress. Unlike traditional one-size-fits-all materials, these tools identify individual weaknesses and suggest optimal review timing and explanations.

• Improving speaking skills through real-time conversation practice with AI and pronunciation analysis
• Step-by-step explanations for formulas or problems captured by camera
• AI automatically generating podcasts or summaries from source materials like notes or PDFs
• Supporting the efficiency of educational tasks such as lesson planning, assessment rubrics, and material creation
• Optimizing memory retention through spaced repetition learning algorithms

When choosing a tool, it is important to first check the scope of free usage. For example, Duolingo Max and Quizlet allow you to use basic features on their free plans, but advanced AI features and ad removal require a paid plan.

The depth of Japanese support is also a key point to consider. Some services, like SpeakBuddy, are developed in Japan and have Japanese interfaces. Others, like Khan Academy Khanmigo, may have a supported UI but much of the learning content remains English-based. The optimal tool depends on whether your goal is practicing daily conversation or deepening understanding of a specific subject.

Additionally, check the available platforms (Web, iOS, Android, etc.) and whether the tool is for individuals or for businesses and schools. MagicSchool AI specializes in improving efficiency for teachers, while Photomath focuses on supporting individual math learning. For the latest pricing structures and feature details, please check the official websites for up-to-date information.

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

Tool	AIpedia rating	Main plans	Japanese support	Platforms
Duolingo Max	4.5	Free plan (with ads) / Super $12.99/month (no ads, unlimited) / Max $29.99/month (with AI features)	Supported	Web, iOS, Android
Speak	4.3	Free plan (limited features) / Premium ¥1,800/month~ (annual plan discount available) / Premium Plus ¥4,000/month~	Supported (Japanese UI available)	iOS, Android, Web
ELSA Speak	4.3	Free plan (limited features) / Pro $13.33/month (billed annually) / Premium $16.59/month (unlimited AI conversation)	Partially supported	iOS, Android, Web
SpeakBuddy	4.2	Free trial available / Standard ¥3,300/month / Annual billing ¥1,983/month (¥23,800/year)	Supported (Japan-based service)	iOS, Android
Photomath	4.6	Free (basic features) / Photomath Plus $9.99/month (detailed explanations, textbook support)	Supported	iOS, Android
Gauth	4.3	Free plan (basic explanations) / Gauth Plus $9.99/month or $39.99/year (unlimited explanations, AI tutor)	Partially supported	iOS, Android, Web
Khan Academy Khanmigo	4.4	Free (available with a Khan Academy account) / Licenses for school districts and schools available	Partially supported (most content is in English)	Web, iOS, Android
NotebookLM Plus	4.5	Free plan (basic features, 5 Audio Overviews per month) / Plus $20/month (includes Google One AI Premium, unlimited Audio Overviews, 300 sources) / Enterprise (contact sales)	Supported	Web
Quizlet	4.2	Free plan (basic features) / Plus $7.99/month ($35.99/year) / Teacher plan (free)	Supported (Japanese support for both UI and content)	Web, iOS, Android
MagicSchool AI	4.2	Free plan (basic features) / MagicSchool Plus $9.99/month / School & District (contact sales)	Partially supported	Web, Chrome extension

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

Features, Pricing, and Best For: 10 Tools

1. Duolingo Max

Duolingo Max is the top-tier plan of Duolingo, a language learning app with over 500 million users worldwide. It features OpenAI's GPT-4 and supports practical language acquisition through two-way conversations with AI.

• Strengths: Real-time voice conversation practice with AI characters via “Video Call” lets you simulate scenarios like cafes or job interviews 24/7. After each conversation, you receive specific feedback on pronunciation and grammar.
• Strengths: The “Explain My Answer” feature provides detailed explanations for correct and incorrect answers, including grammar rules and comparisons with similar expressions.
• Strengths: Robust gamification elements like streaks and leagues strongly support consistent learning. It offers courses in over 40 languages, covering CEFR levels A1 to approximately B2.
• Things to note: The AI conversation feature (Video Call) is limited to specific language pairs and may not be available for all combinations. English and Spanish are the most fully supported.
• Things to note: Advanced learners at CEFR B2 or above may find the content depth insufficient. Other apps may be better suited for specialized learning, such as business English or exam preparation.
• Things to note: AI features (conversation, explanations, Adventures) are not available in the free plan. Max, which includes AI features, costs $29.99/month, making it on the higher end within Duolingo’s pricing structure.

Pricing: Free plan (with ads) / Super $12.99/month (no ads, unlimited) / Max $29.99/month (includes AI features)

Best for: Those who want to improve speaking skills through conversations with AI, those who want to deeply understand the causes of their mistakes, and those who want to continue long-term language learning while enjoying game elements.

View detailed features, pricing, and FAQ for Duolingo Max

2. Speak

Speak is an AI English conversation app developed in partnership with OpenAI. It allows you to practice English conversations with AI 24/7 without appointments. A 20-minute lesson enables speaking practice of over 1,000 words.

• Strengths: Practice repeatedly without the tension of a human instructor and without fear of making mistakes.
• Strengths: AI analyzes pronunciation in real-time and provides immediate feedback.
• Strengths: Level-based curricula allow gradual practice from daily conversation to business English. The interface is available in Japanese.
• Things to note: It does not support language learning other than English, making it unsuitable for multilingual learning.
• Things to note: The experience differs from real conversations with human instructors, and an internet connection is required. The free plan has feature limitations.

Pricing: Free plan (limited features) / Premium ¥1,800/month~ (annual plan discount available) / Premium Plus ¥4,000/month~

Best for: Those who want to increase their speaking volume and those who want to improve English conversation skills at their own pace.

View detailed features, pricing, and FAQ for Speak

3. ELSA Speak

ELSA Speak is an English pronunciation correction app that utilizes AI speech recognition technology. Its proprietary AI analyzes learners' pronunciation at the phoneme level and provides real-time feedback on differences from native speakers. It comprehensively evaluates speaking skills across five areas, including pronunciation and fluency.

• Strengths: Precise phoneme-level pronunciation analysis and real-time feedback allow for efficient learning.
• Strengths: Includes preparation courses for qualification exams such as IELTS and TOEFL, making it useful for test prep. Recognizes accents from over 200 countries and regions, and offers a one-time purchase Lifetime plan.
• Things to note: Specialized in English pronunciation learning, so it does not support other languages.
• Things to note: Open-ended conversation with the AI is available only on the Premium plan and requires an internet connection.

Pricing: Free plan (limited features) / Pro $13.33/month (billed annually) / Premium $16.59/month (unlimited AI conversations) / Lifetime $199.99 (one-time purchase)

Best for: Individuals who want to focus on improving their English pronunciation or speaking skills, or those looking to practice efficiently for qualification exams like IELTS or TOEFL.

View detailed features, pricing, and FAQ for ELSA Speak

4. SpeakBuddy

SpeakBuddy is a Japan-based app that allows you to practice realistic English conversations with AI characters. It provides real-time pronunciation assessment and grammar checks, letting you choose from over 800 scenarios for situation-specific practice.

• Strengths: You can practice as many times as you like without the pressure of speaking to a person, focusing specifically on improving speaking skills.
• Strengths: Adaptive learning features automatically suggest lessons matched to your level. Start with just 15 minutes a day, and goal-specific courses are available for TOEIC prep or business English.
• Things to note: Does not support languages other than English.
• Things to note: The monthly fee is slightly high, and it may not fully match the experience of conversing with a human.

Pricing: Free trial available / Standard ¥3,300/month / Annual billing ¥1,983/month (¥23,800/year) / Business plan (contact sales)

Best for: Working professionals who do not have time to attend English conversation classes, or those looking to study efficiently with specific goals such as TOEIC prep or business English.

View detailed features, pricing, and FAQ for SpeakBuddy

5. Photomath

Photomath is a math learning app under Google. Simply take a photo of an equation with your smartphone camera, and the AI explains the solution step by step. It covers a wide range of fields from basic arithmetic to calculus.

• Strengths: Solutions are displayed instantly via camera capture, and the reasoning behind each step is explained in detail.
• Strengths: Suggests multiple solution methods, allowing you to choose the approach that best fits your understanding.
• Strengths: Basic features are free to use, and it includes graphing capabilities.
• Things to note: Does not support subjects other than math. Detailed explanations require the paid Plus version.
• Things to note: Recognition accuracy for handwritten text may not be perfect, so handwriting should be clearly legible.

Pricing: Free (basic features) / Photomath Plus $9.99/month (detailed explanations, textbook support)

Best for: Individuals who want to understand solutions from basic to advanced math at their own pace.

View detailed features, pricing, and FAQ for Photomath

6. Gauth

Gauth is an AI learning support app developed by ByteDance. Simply take a photo of problems in math, science, English, and other subjects with your camera to receive immediate step-by-step explanations. Rather than just displaying the answer, it carefully explains the reasoning behind the solution method, making it suitable for those who want to deepen their fundamental understanding.

• Strengths: High accuracy in recognizing handwritten problems and graph-based questions, with support for a wide range of subjects including math, science, and English.
• Strengths: The AI tutor feature allows chat-style questions, providing a learning experience close to one-on-one instruction.
• Strengths: Automatically analyzes weak areas from learning history and suggests which topics to focus on for review.
• Things to note: There is a risk of skipping understanding by only looking at the answers, so it is important to read the explanations carefully.
• Things to note: It may not handle advanced university-level problems, and the free version limits the number of explanations available.

Pricing: Free plan (basic explanations) / Gauth Plus $9.99/month or $39.99/year (unlimited explanations, AI tutor)

Best for: Students who want to easily solve problems using their smartphone camera, and those who want to efficiently review weak areas. It is also appealing that you can use basic explanations for free and consider a paid plan as needed.

7. Khan Academy Khanmigo

Khan Academy Khanmigo is an AI learning tutor developed by the non-profit education platform Khan Academy. It provides personalized instruction tailored to students' understanding across a wide range of subjects, including math, science, and humanities. Its distinctive approach is to encourage thinking through questions rather than directly providing answers.

• Strengths: Available for free if you have a Khan Academy account.
• Strengths: Uses Socratic questioning to promote deep understanding.
• Strengths: Includes features for teachers such as lesson planning support and student progress reports.
• Things to note: Much of the content is English-based, so it does not fully align with the Japanese curriculum.
• Things to note: Coverage of advanced specialized subjects is limited.

Pricing: Free (available with a Khan Academy account) / Licenses available for school districts and schools

Best for: Suitable for those who want to utilize English-language educational content, or teachers looking to improve lesson preparation efficiency. However, if you primarily study in Japanese, please verify the scope of support.

View detailed features, pricing, and FAQ for Khan Academy Khanmigo

8. NotebookLM Plus

NotebookLM Plus is the paid version of Google's AI notebook and learning support tool. It ingests sources such as PDFs and web pages, and after the AI understands the content, it generates audio explanations. It also includes question-answering and summarization features based on the ingested materials.

• Strengths: A major feature is the ability to automatically generate AI podcasts from source materials. You can ingest various formats of documents, such as PDFs and videos, and ask cross-cutting questions.
• Strengths: Supports audio explanations in multiple languages, including Japanese. Integration with Google Workspace is also smooth.
• Things to note: It does not function without uploading materials, so it cannot be used as a general-purpose chat tool. Real-time web search capabilities are limited.

Pricing: Free plan (basic features, 5 Audio Overviews per month) / Plus $20/month (includes Google One AI Premium, unlimited Audio Overviews, 300 sources) / Enterprise (contact sales). Note that Google One AI Premium was renamed to Google AI Pro in 2025.

Best for: Ideal for those who want to efficiently organize multiple documents and study via audio. It can also be used for scenarios requiring deep research, such as sharing within business teams or summarizing academic papers.

9. Quizlet

Quizlet is an AI-powered flashcard learning platform. With the Magic Notes feature, you can upload notes to automatically generate flashcards and practice tests. Additionally, AI provides a personalized experience for each learner, supporting efficient study.

• Strengths: Upload notes or PDFs, and Magic Notes automatically creates flashcards, practice tests, and summaries.
• Strengths: An adaptive learning mode focuses on questions you are likely to get wrong, and spaced repetition helps solidify memory. The mobile app allows offline studying.
• Things to note: Many AI features are exclusive to the paid Plus plan, and ads are displayed in the free plan.
• Things to note: User-created content varies in quality.

Pricing: Free plan (basic features) / Plus $7.99/month ($35.99/year) / Teacher plan (free)

Best for: Students who want to quickly create study materials from notes or PDFs, and those who want to efficiently solidify knowledge through spaced repetition learning. It is also useful for teachers who want to manage classes and track progress.

View detailed features, pricing, and FAQ for Quizlet

10. MagicSchool AI

MagicSchool AI is an AI education platform designed for teachers and educators. It includes over 70 AI tools for creating lesson plans and teaching materials, generating assessment rubrics, and more. Its key feature is the ability to generate appropriate content based on grade level, subject, and learning objectives.

• Strengths: Numerous tools are available to streamline educational tasks, within a secure environment compliant with COPPA and FERPA.
• Strengths: It features safe AI chat capabilities for students and an AI assistant available 24/7.
• Things to note: Optimization for the Japanese education curriculum is limited, and Japanese output quality may be inferior to English. Teachers must review and correct generated content.

Pricing: Free plan (basic features) / MagicSchool Plus $9.99/month / School & District (contact sales)

Best for: Teachers who want to streamline the creation of lesson plans, materials, assessments, and feedback, and those who want to build a foundation for AI use in educational settings.

Recommendations by Goal

Goal	Recommended	Reason
Try it for free first	Khan Academy Khanmigo, Quizlet	Khan Academy Khanmigo lets you use a high-quality AI tutor just by creating an account, and Quizlet offers its core features for free.
Learn easily with a Japanese UI	Speak, SpeakBuddy	Speak has a Japanese interface, and SpeakBuddy is a service developed in Japan.
Keep learning languages in a fun way	Duolingo Max	Game elements like streaks and leagues make it easy to stay consistent. You can also practice conversations with AI and get explanations for mistakes.
Understand math solutions in detail	Photomath, Gauth	They provide detailed step-by-step explanations for equations captured by camera.
Organize materials efficiently	NotebookLM Plus	You can load sources like PDFs and videos, generate AI podcasts, and perform cross-source Q&A.
Streamline teacher tasks	MagicSchool AI	It includes over 70 education-specific AI tools for lesson planning, assessment rubrics, and more.
Focus on pronunciation correction	ELSA Speak	Its precise phoneme-level pronunciation analysis AI provides real-time feedback.

The above reflects general trends based on data. Specific features and pricing may change, so please check the official website for the latest information before adopting any tool.

How to Choose Without Regrets

Clarify your learning goals and target subjects

Different tools excel in different areas. For example, Duolingo Max and Speak are specialized for language learning. On the other hand, Photomath and Gauth are strong at solving textbook problems in math and science.

Khan Academy Khanmigo also supports individualized instruction across a wide range of subjects. It is important to first decide what you want to learn and then choose a tool that fits your needs.

Check pricing structures and free tiers

Pricing models vary by tool. Duolingo Max costs $29.99/month, while Speak has plans priced in Japanese yen, starting at ¥1,800/month.

Khan Academy Khanmigo’s basic features are available for free. Compare the limitations of the free plan and the additional features included in paid plans.

Check the scope of Japanese support

It is important to know whether the UI supports Japanese or if the learning content itself is provided in Japanese. Quizlet supports Japanese for both its UI and content.

Khan Academy Khanmigo and MagicSchool AI offer partial support, with much of the content based on English. Be aware of this and ensure it matches your language level.

Available device environments

The supported platforms differ by tool. NotebookLM Plus is web-only, while Duolingo Max and Quizlet support iOS, Android, and web.

Check if the tool supports the environments that fit your lifestyle, such as learning on a smartphone during your commute or on a PC at home.

Individual or business use

SpeakBuddy and MagicSchool AI offer plans for businesses and schools. If you are considering adoption by a school or company, security standards and licensing models are important.

For individual use, whether AI features are included can change the experience significantly. Check the official website for the latest pricing and features.

FAQ

Q. What are the limitations of the free features?

Many tools offer a free plan, but these often come with feature restrictions. For example, Quizlet displays ads and limits AI features to paid plans. Similarly, Gauth and Photomath require a paid plan for detailed explanations and unlimited usage.

Q. How well do these tools support Japanese?

Support varies by tool. SpeakBuddy and Quizlet offer Japanese support for their UI and content. In contrast, Khan Academy Khanmigo has partial support, with most content in English. Gauth also offers partial support. ELSA Speak has a Japanese UI, but its learning focus is specifically on English.

Q. Which tools are specialized in English pronunciation practice?

ELSA Speak and Speak are good options. ELSA Speak’s strength is precise phoneme-level pronunciation analysis. Speak allows for speaking practice of over 1,000 words in 20 minutes and provides real-time feedback.

Q. Are there tools available for explaining math or science problems?

We recommend Photomath or Gauth. Photomath uses a camera to capture equations and provides step-by-step explanations. Gauth similarly allows multi-subject explanations via camera capture and offers high recognition accuracy for handwritten problems.

Q. Which tools have features designed for teachers?

MagicSchool AI is specialized for teachers. It includes over 70 AI tools for lesson planning, material creation, and generating assessment rubrics. Additionally, Khan Academy Khanmigo offers teacher-focused support for creating lesson plans.

Q. What should I watch out for when letting children use these tools?

It is important to avoid usage patterns where users simply look at the answer and stop there. Answer apps like Gauth carry the risk of users bypassing understanding by just viewing the solution. Khan Academy Khanmigo uses a method that prompts thinking through questions rather than directly providing answers. For school use, MagicSchool AI complies with COPPA and FERPA and includes a safe AI chat for students (MagicStudent). Please check each service’s age requirements and terms of service.

Summary

This article compared 10 AI education and learning tools, including Duolingo Max and Speak. Each tool has different strengths, such as AI conversation practice, pronunciation analysis, math explanation generation, and classroom support. Pricing also varies widely, from free tools to paid plans of up to about $30 a month.

When choosing a tool, it is important to clarify your learning goals, supported languages, and usage environment. Check not only the feature set but also the limitations of the free plan and the scope of Japanese support. Please verify the latest pricing and features on the official website.

• For daily conversation practice: Speak (24/7 AI speaking practice available)
• To deepen your understanding of math: Photomath (step-by-step solution explanations via camera capture)
• To streamline lesson preparation: MagicSchool AI (work support with 70+ education-specific tools)

View all AI education and learning tools (16 items)