Artificial intelligence is no longer a futuristic concept; it's a practical tool revolutionizing how we capture, organize, and utilize information. The right AI-powered note-taking app can transform scattered thoughts and lengthy meetings into structured, actionable insights. But with a rapidly growing market, choosing the best ai note taking app for your specific needs can feel overwhelming.
このガイドは、氾濫する情報をすっきり整理します。Notion や Coda のような包括的なワークスペースプラットフォームから、Fireflies.ai や Otter.ai のような特化型ミーティングアシスタントまで、主要な有力候補を実践的かつ深く掘り下げて分析します。表面的な機能一覧を並べるのではなく、実際のパフォーマンス、率直な制約事項、そして各ツールが解決するよう設計されている具体的な課題に焦点を当てています。
各アプリケーションごとの詳細な内訳を、スクリーンショットや直接リンク付きでご覧いただけます。内容には以下が含まれます。
- Key AI Capabilities: What does the AI actually do, and how well does it perform?
- Ideal Use Cases: Who is this app built for? (e.g., sales teams, students, developers).
- Pricing and Plans: A clear look at free vs. paid tiers.
- Pros and Cons: A balanced view based on hands-on experience.
私たちの目標は、あなたのワークフロー、セキュリティ要件、そして予算に本当に適したアプリを理解できるよう支援することです。本ガイドを読み終える頃には、単にメモを取るだけでなく、あなたの思考、創造、そしてコラボレーションをより効果的にサポートしてくれるソリューションを選べるようになっているはずです。
1. Notion（Notion AI）
Notion has evolved from a powerful all-in-one workspace into a formidable contender for the best AI note taking app by deeply integrating Notion AI across its entire platform. It excels for users who need more than just a note-taker, offering a unified system for documents, project management, wikis, and databases. The AI acts as a built-in assistant, capable of summarizing lengthy documents, generating action items from meeting notes, and even auto-filling database properties based on page content.
What makes Notion AI stand out is its contextual awareness within your workspace. You can ask its AI chat questions about content spread across multiple pages or get research assistance without leaving your document. For teams, this means a single source of truth that is both collaborative and intelligent. Learning how to leverage these features can significantly improve your team's efficiency; for practical guidance, you can explore resources on how to take better meeting notes to maximize its potential.
主な機能と料金
Notion の統合的なアプローチにより、AI は単なる付加機能ではなく、コアとなるワークフローの一部になっています。これは、構造化されたノートの作成や、複雑な情報の管理に特に有益です。
- AI-Powered Features: Includes AI-driven summaries, writing assistance, research mode, and database autofill.
- Unified Workspace: Combines notes, tasks, and wikis, eliminating the need to switch between multiple apps.
- Offers advanced features like enterprise search and a zero-data-retention option for enhanced privacy.
- Notion AI is bundled by default in the Business and Enterprise plans. Users on the Free or Plus plans must upgrade to access the full suite of AI capabilities, which can be a significant consideration for individual users or small teams. You can find current details on their pricing page.
長所と短所
| 長所 | 短所 |
|---|---|
| Mature Ecosystem: Extensive templates and integrations are available. | High Barrier to AI: Full AI features require a Business plan upgrade. |
| Excellent for mixed document and task management workflows. | Pricing Changes: Upcoming 2025 plan changes may create confusion. |
| Deep Integration: AI is woven directly into pages and databases. | Learning Curve: Can be complex for users new to the Notion system. |
2. Microsoft 365 Copilot を搭載した Microsoft OneNote
Microsoft OneNote becomes a powerful contender for the best AI note taking app through its integration with Microsoft 365 Copilot. This combination is particularly compelling for enterprise users already embedded in the Microsoft ecosystem. Copilot acts as an intelligent assistant directly within OneNote, capable of summarizing long pages, generating clear to-do lists from unstructured notes, and answering questions about your notebook's content. It leverages the full context of your Microsoft 365 data, providing a deeply integrated experience.
Copilot を搭載した OneNote の主な利点は、企業のワークフローにシームレスに適合する点です。AI は単なるメモ取りにとどまらず、Teams の会議、Outlook のメール、Word ドキュメントから得られたインサイトを、あなたのノートに直接つなげてくれます。セキュリティとコンプライアンスを重視する組織にとって、Microsoft の堅牢なエンタープライズグレードのセキュリティプロトコルを継承したツールを活用できることは大きなメリットです。これにより、生産性を向上させつつ、データガバナンスを損なわないソリューションを求める企業にとって理想的な選択肢となります。
主な機能と料金
OneNote の価値は、Copilot が Microsoft 365 スイート全体にわたる情報を統合して要約できることによって高まり、組織のナレッジの中核となるハブにしています。この統合により、ノートは単なる静的な記録ではなく、動的で行動につながる資産となります。
- AI-Powered Features: Includes summarizing pages and sections, creating to-dos from notes, and an AI chat that can answer questions about your notebook content.
- Ecosystem Integration: Copilot works across Microsoft 365 apps like Word, PowerPoint, Excel, and Teams, pulling context into your notes.
- Enterprise-Grade Security: Benefits from Microsoft's comprehensive security and compliance framework, a key factor for corporate users.
- Copilot is available as an add-on for many Microsoft 365 Business and Enterprise plans. While Copilot Chat is being rolled out more broadly at no extra cost for some enterprise tiers, full functionality often requires an additional subscription. Details can be found on their official Copilot page.
長所と短所
| 長所 | 短所 |
|---|---|
| Deep enterprise security and compliance: Leverages Microsoft's trusted security infrastructure. | Additional cost for full features: Full Copilot functionality is an add-on for many plans. |
| Strong ecosystem fit: Unmatched integration for existing Microsoft 365 users. | Varying consumer rollout: Availability for non-enterprise users can be inconsistent. |
| Broad availability for enterprise: Copilot Chat is rolling out at no extra cost for many subscriptions. | Less standalone value: Power is tied to the broader Microsoft 365 suite. |
3. Google NotebookLM（Google One AI プラン付き）
Google NotebookLM is not a traditional note-taker but an AI-powered research and study assistant, making it a unique contender for the best AI note taking app for specific use cases. It excels at synthesizing information by allowing users to upload sources like Google Docs, PDFs, and website links. The AI then becomes an expert on your provided materials, letting you ask complex questions, generate summaries, create study guides, and even produce audio overviews of the content.
NotebookLM を際立たせているのは、「ソースに基づく」アプローチです。AI が生成するすべての回答は、あなたがアップロードしたドキュメントに直接結びついており、その情報をすぐに検証できる引用が付いています。これは、AI の幻覚リスクなしに、膨大な資料から洞察を抽出する必要がある学生、研究者、そしてプロフェッショナルにとって非常に貴重です。NotebookLM は、あなたのファイルコレクションを、Google の Gemini モデルによって動作するインタラクティブで会話的なナレッジベースへと変えてくれます。
主な機能と料金
NotebookLM の価値は、プラットフォーム内で一からノートを作成する必要をユーザーに求めるのではなく、既存のドキュメントとの対話を可能にする点にあります。Google エコシステムとの深い統合は、既存の Drive ユーザーにとって大きな利点です。
- AI-Powered Features: Includes source-grounded Q&A, automatic summaries and outlines, and audio overviews of your notes and source content.
- Multi-Source Synthesis: Can analyze multiple document types simultaneously to answer questions and find connections.
- Gemini Integration: Powered by advanced Gemini models with an expanded context window for processing large amounts of information.
- NotebookLM is free to use with limits. Full access to its most powerful Gemini models and expanded features requires a paid Google One AI Premium plan.
長所と短所
| 長所 | 短所 |
|---|---|
| Excellent for Research: Ideal for students, educators, and analysts. | Requires Paid Plan: Best features are locked behind a Google One AI Premium subscription. |
| Tight Google Ecosystem Integration: Works seamlessly with Google Docs and Drive. | Workspace Account Hurdles: Requires separate Gemini add-ons for Google Workspace users. |
| Source-Grounded AI: AI responses include citations, ensuring accuracy and trust. | Niche Focus: Less of a general-purpose note-taking app and more of a research tool. |
4. Otter.ai
Otter.ai has carved out a specialized niche as a leading best AI note taking app by focusing almost exclusively on voice conversations and meetings. It excels at real-time transcription, recording audio, and generating automated summaries with action items from virtual or in-person meetings. This makes it an indispensable tool for teams, educators, and anyone who needs to capture discussions accurately without the manual effort of typing notes.
What makes Otter.ai stand out is its seamless integration with major video conferencing platforms like Zoom, Google Meet, and Microsoft Teams. The AI assistant can automatically join your meetings, transcribe the conversation live, and deliver a full summary to all participants afterward. This focus on automating the entire meeting documentation process allows users to stay engaged in the conversation instead of getting distracted by note-taking. To better understand its capabilities, you can find a helpful overview on what is Otter.ai.
主な機能と料金
Otter.ai の強みは、会議で話される言語を理解し処理することに特化して設計された、専用の AI にあります。この専念した取り組みにより、高品質な文字起こしと、関連性が高く実用的なアウトプットが保証されます。
- AI-Powered Features: Offers live transcription, automated meeting summaries, speaker identification, and action item generation.
- Multi-Platform Integration: Connects directly with popular calendar and conferencing tools to automate meeting recording and transcription.
- Specialized AI Agents: Provides tailored AI "agents" for specific roles like sales and recruiting to generate role-specific insights.
- A free plan is available with limited transcription minutes. Paid plans (Pro, Business) unlock more minutes, advanced features, and team collaboration tools. Details are on their pricing page.
長所と短所
| 長所 | 短所 |
|---|---|
| Easy Capture and Sharing: Effortlessly records and distributes meeting notes. | Payment Limitations: Does not support PayPal for subscriptions. |
| Strong Meeting Focus: Optimized for transcribing and summarizing calls. | Gated Features: Some advanced AI features are locked behind higher tiers. |
| Mobile & Team Ready: Excellent mobile apps and discounts for education teams. | Niche Application: Less suited for general text-based note-taking. |
5. Fireflies.ai
Fireflies.ai carves out its niche as a specialized best AI note taking app designed almost exclusively for meetings. Rather than serving as a general-purpose notes platform, it acts as an automated meeting assistant that joins your calls, records them, and generates detailed transcripts, summaries, and action items. This focus makes it an invaluable tool for teams that rely heavily on video conferencing and need a reliable way to capture and organize conversations without manual intervention.
The platform's standout feature is its AI assistant, "AskFred," which allows users to query meeting content directly, much like chatting with a team member who has perfect recall. You can ask for specific decisions, key metrics discussed, or follow-up tasks, and Fred will pull the answers from the transcript. This conversational intelligence, combined with broad integrations into tools like Slack, CRMs, and project managers, automates the post-meeting workflow. To understand its full capabilities, you can explore in-depth resources that answer questions like what is Fireflies.ai.
主な機能と料金
Fireflies.ai はスケールすることを前提に構築されており、個人のフリーランサーから、高度なセキュリティとコンプライアンスを必要とする大企業まで、あらゆるユーザーを支援する機能を提供します。最大の強みは、文字起こしからアクションまで、ミーティングのライフサイクル全体を自動化できる点にあります。
- Automated Transcription & Summaries: Provides searchable transcripts and concise AI-generated summaries for every recorded meeting.
- Conversation Intelligence: Analyzes talk time, sentiment, and other key metrics to provide insights into meeting dynamics.
- Broad Integrations: Connects with popular video conferencing platforms (Zoom, Google Meet, Teams) and various CRMs and collaboration tools.
- Offers a limited free tier, with paid plans unlocking unlimited transcription, advanced search, and more integrations. Enterprise-level features like SSO and HIPAA compliance are available on higher-tier plans, which you can review on their pricing page.
長所と短所
| 長所 | 短所 |
|---|---|
| Excellent Automation: Completely hands-off meeting recording and note-taking. | Less suited for general-purpose note-taking or document writing. |
| Powerful Integrations: Seamlessly pushes data to CRMs and other work tools. | Analytics Gated: Advanced conversation intelligence is reserved for higher-tier plans. |
| Scalable Security: Offers enterprise-grade options like HIPAA compliance and SSO. | Language Support: Details on support for languages other than English can be unclear. |
6. Supernormal
Supernormal positions itself as a specialized contender for the best AI note taking app by focusing exclusively on automating meeting documentation. It is designed for teams that need to capture, transcribe, and summarize discussions from video calls with minimal effort. The platform automatically joins your meetings, records them, and generates detailed notes, transcripts, and summaries, allowing participants to stay fully engaged in the conversation instead of typing.
Supernormal を特に効果的なものにしているのは、カスタマイズ可能なテンプレートの活用です。チームは、セールスコール、面接、プロジェクトの定期チェックインなど、さまざまな会議タイプに合わせて構造化されたアウトプットを作成でき、一貫性と有用性を確保できます。Slack、Asana、各種 CRM などのツールとの深い連携により、重要なアクションアイテムや要約を、実際に作業が行われている場所へ直接プッシュしてワークフローを合理化し、通話後の手動でのデータ入力を不要にします。
主な機能と料金
Supernormal の強みは、ミーティングノートに対する「一度設定したら後は任せるだけ」というアプローチにあり、煩雑な管理作業なしで信頼できる記録が必要な忙しいチームにとって理想的なツールとなっています。
- Automatic Meeting Assistant: Joins, records, transcribes, and takes notes automatically for Google Meet, Microsoft Teams, and Zoom.
- Customizable Templates: Create and share templates to generate structured notes tailored to specific meeting objectives.
- Broad Integrations: Connects with popular productivity tools, including CRMs and ATS, to automate post-meeting workflows.
- Supernormal offers a free tier with storage limitations. Paid plans are competitively priced and offer generous storage and access to more advanced AI models for higher-quality summaries. Details can be found on their pricing page.
長所と短所
| 長所 | 短所 |
|---|---|
| Easy Setup: Very intuitive to configure and integrate with calendars. | Storage Limits: The free tier has a restrictive storage cap for recordings. |
| Generous Paid Storage: Paid plans provide ample storage for meeting history. | Tiered AI Models: Access to the best AI summarization is reserved for higher plans. |
| Competitive Pricing: Yearly plans offer a cost-effective solution for teams. | Less suited for general-purpose text or long-form notes. |
7. Sembly AI
Sembly AI carves out its niche as a strong contender for the best AI note taking app by focusing almost exclusively on meetings. It acts as an intelligent meeting assistant that joins your calls, records them, and generates detailed notes, summaries, and actionable items. This makes it ideal for teams that spend significant time in video conferences and need a reliable way to capture and distribute key information without manual effort.
Sembly AI を際立たせているのは、深い分析能力と強固なコンプライアンス体制です。単なる書き起こしにとどまらず、リスク、問題、議論された重要なトピックを特定し、プロジェクト管理やチームの足並みをそろえるうえで価値あるインサイトを提供します。規制産業の組織にとっては、SOC 2 や HIPAA などのセキュリティ標準への取り組みにより、機密性の高い会議データが責任をもって取り扱われているという安心感が得られます。
主な機能と料金
Sembly AI は、一般的なカレンダーや会議ツールとシームレスに連携できるよう設計されており、チームでの導入が容易です。その機能セットは、会議の生産性と説明責任を最大限高めることに特化しています。
- AI-Generated Notes: Delivers automated summaries, meeting minutes, and extracts action items, risks, and issues.
- Team Analytics: Provides insights into team collaboration, meeting attendance, and topic trends across multiple sessions.
- Broad Language Support: Supports transcription and analysis in over 40 languages, making it suitable for global teams.
- Sembly AI offers several tiers, including a free plan with basic features. Paid plans unlock more advanced capabilities and higher usage limits, with enterprise pricing available upon request. You can review the specifics on their pricing page.
長所と短所
| 長所 | 短所 |
|---|---|
| Team-Friendly Pricing: Plans are structured to be accessible for teams. | Plan-Based Limits: Feature availability varies significantly by plan. |
| Strong Security: Transparent policies and compliance (SOC 2, HIPAA). | Sales Contact Required: Enterprise pricing is not publicly listed. |
| Extensive Resources: Offers annual discounts and a robust help center. | Less suited for general-purpose or personal note-taking. |
8. Mem.ai
Mem.ai positions itself as a self-organizing workspace, making it a strong candidate for the best AI note taking app for users who prioritize speed and intelligent search. It functions like an external brain, capturing information from various sources and using AI to connect related thoughts, notes, and documents automatically. The platform's core strength is its "Mem Chat" feature, which allows you to ask questions and get synthesized answers drawn directly from your entire knowledge base, rather than just a single document.
Mem.ai を際立たせているのは、「手間のかからない情報の取り込み」と「セマンティック検索による発見」に特化している点です。メールを転送したり、クイックキャプチャのショートカットを使ったり、他のアプリと連携して情報を直接 Mem に送信できます。AI はその裏側で動作し、強力な自然言語検索を通じて探索できる相互接続されたナレッジのウェブを構築してくれます。これは、膨大な量のノートから情報をタグ付けやフォルダ整理なしに想起・統合する必要がある研究者、ライター、ビジネスパーソンにとって理想的なツールです。
主な機能と料金
Mem.ai は、情報を記録することと取り出すことの両方の手間を減らし、整理という重労働をAIに任せられるように設計されています。そのアプローチにより、データベースというよりも、自分の知識のための会話相手のように感じられます。
- AI-Powered Features: Includes Mem Chat for querying your knowledge base, smart search, and automatic linking of related notes.
- Effortless Capture: Integrates with email, SMS, and other platforms to quickly add notes and documents.
- Self-Organizing Workspace: AI automatically surfaces relevant information and connections without manual effort.
