

⚡ Quick Verdict:
- 価格: Fireflies AI paid plans start at $10/month. Microsoft OneNote is free, with premium features through a Microsoft 365 paid subscription.
- 最適な用途: Fireflies AI for teams that record meetings and need instant transcripts. OneNote for people who organize notes, ideas, and handwritten notes.
- 主な違い: Fireflies AI is an AI meeting アシスタント that joins calls. OneNote is a note taking app for capturing and organizing information.
- Our pick: Fireflies AI for most teams. It records, transcribes, and summarizes meetings without manual work.

Fireflies AI and Microsoft OneNote both help you capture information.
しかし、それらは全く異なる問題を解決する。
Fireflies is an AI that joins your meetings and writes everything down.
OneNote is a place where you type, draw, and organize your own notes.
One records and transcribes meetings for you. The other waits for you to write.
This guide shows which tool fits your daily work.
概要
This Fireflies AI vs Microsoft OneNote comparison covers pricing, features, and ease of use.
We also break down who each app works best for.
Our sources include published specs, documentation, and user reviews.
Our writers also spent hands-on time with each tool. Those notes appear below.
By the end, you will know which one fits your needs.
Fireflies AIとは何ですか?
Fireflies AI is an AI meeting assistant and AI notetaker.
Some people call it an AI 声 assistant or a simple note taker for calls.
It fits people who schedule meetings all day and want hands-free notes.
It helps teams transcribe, summarize, search, and analyze 声 会話。
The Fireflies.ai notetaker can automatically record and transcribe meetings across several video conferencing apps.
It can automatically join meetings on your calendar and generate transcripts in real time.
You can also upload audio files or video files for transcription.
Watch a quick walkthrough of the Fireflies AI notetaker below.
Here is a look at the Fireflies dashboard where your meetings live.


🏆 Winner: Fireflies AI
An AI transcription tool that joins your online meetings. It generates transcripts, summarizes key moments, and tracks action items for you.
Fireflies AIの価格設定
Here is what Fireflies AI costs in 2026. Let’s break it down.
| プラン | 価格 | 最適な用途 |
|---|---|---|
| 無料 | $0 | Individuals testing transcription |
| プロ | 月額10ドル | Solo pros and small teams |
| 仕事 | 月額19ドル | 分析を必要とする成長中のチーム |
| 企業 | 月額39ドル | 大規模組織 |
Pricing verified June 2026.

無料トライアル: Yes. Fireflies AI offers a free 7-day trial. It lets you transcribe unlimited video conferencing calls before you commit to a paid plan.
無料プラン: Yes. The free version lets individuals test the AI notetaker on a limited basis.
📌 注記: Plan prices are billed per seat. Higher tiers add more storage, longer transcripts, and advanced analytics for measuring performance.
⚠️ 警告: Annual billing is cheaper than monthly. Check the current price on the pricing page before you buy, since tiers change over time.
Fireflies AIの主な利点
Here is what makes Fireflies AI worth considering:
- Automatic recording: Fireflies can automatically record and transcribe meetings. It joins online meetings on your calendar so you never miss a word.
- AI-powered search: The AI powered search finds action items, key topics, and key metrics across your meeting history in seconds.
- Conversation intelligence: It can track speaker talk time, sentiment, and other key metrics. This conversation intelligence helps you coach teammates.
- Wide integrations: It connects to Google Meet, Zoom, Microsoft Teams, and Webex. You can send 会議メモ to favorite collaboration apps like Slack and Notion.
- Soundbites and recaps: Create soundbites of the most memorable moments. Share meeting recaps and instant transcripts with co workers.
- 多くの言語: Fireflies can transcribe meetings in over 60 languages, including English, Spanish, and Japanese.
- Built for teams: It lets a team transcribe calls from one shared workspace. Fireflies flags important moments and supports topic tracking. It can even help you create content like recaps and follow-up emails.
- 常に改善中: A Chrome extension brings it into your browser. Regular bug fixes and updates help teams improve productivity across meetings and other topics.

What Our Team Noticed
私たちの 作家 signed up for Fireflies AI and used it on real online meetings for several days. Here is what stood out:

Fireflies AIの長所と短所
✅ メリット
- Automatically joins and transcribes meetings in real time
- AI powered search finds action items and key topics fast
- Tracks speaker talk time and other key metrics
- Integrates with over 100 business tools and CRMs
❌ デメリット
- Transcripts can have errors for speakers with accents
- The user interface feels cluttered for beginners
- Requires calendar access, which raises privacy concerns
Microsoft OneNote とは何ですか?
Microsoft OneNote is a note taking app developed by Microsoft.
It is designed for free-form information gathering and multi-user collaboration.
You can create notes, drawings, screen clippings, and audio commentaries.
OneNote uses a notebook metaphor to organize information into multiple notebooks, sections, and pages.
It integrates with other Microsoft Office applications, including Microsoft Word, Excel, and PowerPoint.
You can access OneNote on the web, the full Windows version, the Android version, マック、そしてiOS。
Microsoft offers it free, and many onenote users pair it with Word for word processing.
Unlike Google Docs, OneNote uses a free-form canvas where you click anywhere to write.
Watch a short overview of Microsoft OneNote below.
Here is the OneNote workspace with its notebooks, sections, and pages.


マイクロソフト OneNote
A free note taking app for capturing ideas across multiple devices. It supports handwritten notes, drawing tools, and OCR text search.
Microsoft OneNoteの価格設定
Here is what Microsoft OneNote costs in 2026. Let’s break it down.
| プラン | 価格 | 最適な用途 |
|---|---|---|
| Free version | $0 | Most note taking needs (5GB OneDrive) |
| マイクロソフト 365 | Paid subscription | Premium features and 1TB cloud storage |
Pricing verified June 2026.
無料トライアル: Not needed. The free version of OneNote is available as a stand-alone app on the official website and app stores.
返金保証: Microsoft 365 subscriptions follow Microsoft’s standard refund policy.
📌 注記: The free version includes 5GB of cloud storage. A Microsoft 365 subscription unlocks more storage (1TB) and premium features in other Microsoft apps.
⚠️ 警告: Our CSV lists OneNote pricing as “contact for exact pricing.” Microsoft does not sell OneNote on its own. The app is free, and premium features come with a paid Microsoft 365 plan.
Microsoft OneNoteの主な利点
Here is what makes Microsoft OneNote worth considering:
- Truly free: The free version offers unlimited notes and syncing across multiple devices. There is no cap on monthly uploads.
- Flexible note taking: Click anywhere on a page to start writing. Add a text box, handwrite notes, or insert drawing tools.
- OCR technology: Optical character recognition lets you search for text inside images and handwritten notes.
- Web clipper: A browser extension saves articles, web pages, and images directly to your notebooks.
- リアルタイムコラボレーション: Multiple users can edit the same notebook at once. You control edit or view-only access when sharing notes.
- Office integration: OneNote works with Microsoft Office and records audio and video right inside your notes.
- Search and share: Strong search features help you find notes fast. You can share pages with other onenote users or move them to other apps, though export options stay limited.
- Made for capture: For taking notes by hand or by keyboard, the canvas is flexible. You access OneNote the same way on every device tied to your account.
What Our Team Noticed
Our writer used Microsoft OneNote across desktop and mobile apps for everyday note taking. Here is what stood out:

Microsoft OneNoteの長所と短所
✅ メリット
- Free across Windows, Mac, iOS, and アンドロイド
- Flexible canvas for typing, drawing, and handwritten notes
- OCR text search inside images and notes
- Works with Microsoft Office applications
❌ デメリット
- 新規ユーザーにとって学習曲線が急峻
- Limited functionality on mobile devices
- Few export options for moving notes elsewhere
機能比較
Ready to dive into a detailed comparison of Fireflies AI vs Microsoft OneNote?
We will look at ten key features to help you pick the right app. One is built to analyze meetings. The other is built to organize information.
| 特徴 | ホタルAI | マイクロソフト OneNote |
|---|---|---|
| 開始価格 | 月額10ドル | 無料 |
| 無料プラン | ✅ | ✅ |
| Automatic Meeting Transcription | ✅ | ❌ |
| AI会議の要約 | ✅ | 限定 |
| Speaker Talk-Time Analytics | ✅ | ❌ |
| Handwritten Notes & Drawing | ❌ | ✅ |
| OCR Text Search | ❌ | ✅ |
| AIアシスタント | ✅ (AskFred) | ✅(副操縦士) |
| 最適な用途 | Recording and analyzing meetings | Organizing notes and ideas |
1. AI Transcription & Voice Capture
ホタルAI: This is the core of the tool. The AI notetaker can automatically record and transcribe meetings across several video conferencing apps. It joins online meetings and generates transcripts in real time. You can also upload audio files for transcription.

マイクロソフト OneNote: OneNote lets you record audio and video directly into your notes. It does not auto-join calls or transcribe meetings the way an AI transcription tool does. Audio recording sits next to your typed notes for later review.

⚠️ 警告: OneNote does not auto-transcribe meetings. If you need instant transcripts from online meetings, Fireflies AI is the clear fit.
2. Summaries & Note Capture
ホタルAI: After each call, Fireflies builds meeting recaps that summarize key moments and key topics discussed. It pulls out the most memorable moments so you can scan a meeting in seconds instead of reading a full transcript.

マイクロソフト OneNote: OneNote now features AI capabilities to summarize notes and highlight key points. You still write or paste the content yourself first. It helps you organize information, not capture a live conversation.

3. Action Items & Task Tracking
ホタルAI: Fireflies spots action items during the meeting and logs them automatically. It can create follow-up emails and fill CRM systems with meeting data. This オートメーション removes manual data entry after each call.

マイクロソフト OneNote: OneNote lets you create to-do lists and tag tasks by hand. You can add custom tags to flag a task or an idea. It does not detect tasks for you the way Fireflies does.
4. Collaboration & Sharing
ホタルAI: You can send meeting notes to favorite collaboration apps like Slack, Notion, and Asana. Team members can create soundbites and share clips with co workers. It keeps remote teams aligned after every call.

マイクロソフト OneNote: OneNote supports real-time co-authoring. Multiple users can edit a single notebook at the same time. When sharing notes, you choose edit or view-only access for each person.

5. AI Assistant & Search
ホタルAI: AskFred is the built-in AI assistant. You can ask questions about any meeting and get instant answers. The AI powered search digs through your meeting history to surface valuable insights and key metrics.

マイクロソフト OneNote: Copilot brings AI into OneNote for users with the right Microsoft 365 plan. It can answer questions, draft text, and summarize a page. There is also a math assistant for solving equations inside notes.

6. Transcription Accuracy & Languages
ホタルAI: Accuracy is reported around 90%. It can transcribe meetings in over 60 languages. You may still need to proofread the transcripts, especially for speakers with strong accents. For most online meetings, the output is solid.

マイクロソフト OneNote: OneNote has no live transcription engine to measure here. Its strength is OCR. Optical character recognition reads text inside images and handwritten notes so you can search them later.
7. Meeting Prep
ホタルAI: Fireflies pulls past notes and calendar events before a call so you walk in prepared. It surfaces what was decided last time and which action items are still open. This helps small teams stay on track.

マイクロソフト OneNote: OneNote offers custom templates for meeting notes and project plans. You prep by building your own agenda page. It is manual, but the layout is flexible for any meeting.
8. Advanced Analytics & Insights
ホタルAI: This is where Fireflies pulls ahead. It can track speaker talk time, sentiment, and filler words. These conversation intelligence metrics help you measure performance, coach teammates, and identify objections in sales calls.

マイクロソフト OneNote: OneNote has no analytics for talk time or sentiment. It is a note taking app, not a meeting analyzer. If you want insights to improve internal processes, this is not its job.
9. Automation Agents
ホタルAI: Fireflies Agents and the app store let you automate actions from meetings. You can auto-distribute meeting notes to other platforms once a call ends. It connects to over 100 business tools through an API.

マイクロソフト OneNote: OneNote relies on Microsoft Office links rather than meeting オートメーション. It moves data between Word, Excel, and PowerPoint. There are no meeting agents here.
10. Handwriting & Drawing
ホタルAI: Fireflies has no handwriting or drawing tools. It focuses on voice conversations, not freehand input. If you want to handwrite notes, this is not the tool.
マイクロソフト OneNote: This is a OneNote strength. You can sketch, annotate, and handwrite notes with a stylus. Sections can be color-coded, and you get a wide range of formatting and customization options.

11. 価格設定とコスト
料金プランを並べて比較してみましょう。
| プラン | ホタルAI | マイクロソフト OneNote |
|---|---|---|
| 無料 | 限定無料プラン | Free version (5GB) |
| 入場料支払い済み | 月額10ドル(プロ版) | Microsoft 365 subscription |
| 中級クラス | 月額19ドル(ビジネスプラン) | Included in Microsoft 365 |
| トップティア | 月額39ドル(エンタープライズプラン) | Microsoft 365 (1TB storage) |
ホタルAI: You pay per seat. The Pro plan at $10/month adds more transcripts and storage. Business and Enterprise add deeper analytics for larger teams.
マイクロソフト OneNote: The app itself is free. You only pay if you want Microsoft 365 for more storage and premium features. For pure note taking, the onenote cost is zero.
さまざまなシナリオ
| 必要な場合は | 選ぶ | なぜ |
|---|---|---|
| 無料のメモ取り | マイクロソフト OneNote | The app is free |
| 会議の議事録を作成する | ホタルAI | Auto-records and transcribes |
| Handwritten notes | マイクロソフト OneNote | Drawing and stylus tools |
| 会議分析 | ホタルAI | Tracks talk time and sentiment |
| Organize information | マイクロソフト OneNote | Notebooks, sections, and pages |
💰 あなたの予算
OneNote wins on cost since the app is free. Fireflies AI needs a paid plan from $10/month for full meeting features.
🔌 あなたの技術スタック
Fireflies fits teams on Google Meet, Zoom, and Microsoft Teams. OneNote fits people already inside Microsoft Office and other Microsoft apps.
📝 あなたの文章スタイル
If you record meetings and want instant transcripts, pick Fireflies. If you type and handwrite your own ideas, pick OneNote.
🎓 あなたの経験レベル
Both tools can feel cluttered at first. New users may need a few days to learn the user interface of either app.
🆓 無料トライアルとデモ
Test both before you commit. Fireflies offers a free 7-day trial, and OneNote is free to download from the app stores.
🛟 サポートオプション
Fireflies has live chat and email support but no phone line. OneNote relies on Microsoft support docs and community help.
切り替えガイド
既にこれらのツールのいずれかをご利用ですか?切り替える場合、どのような変更が想定されますか?
🔄 Switching from Fireflies AI to Microsoft OneNote?
✅ 得られるもの:
- A free app with no per-seat cost
- Handwritten notes, drawing tools, and custom templates
- Tight links to Microsoft Word, Excel, and PowerPoint
❌ 失うもの:
- Automatic meeting transcription and recaps
- Speaker talk time and other key metrics
- AI powered search across meeting history
📋切り替え方法:
- Export your transcripts and notes from Fireflies
- Create a free Microsoft account for OneNote
- Paste your notes into new notebooks and sections
🔄 Switching from Microsoft OneNote to Fireflies AI?
✅ 得られるもの:
- An AI notetaker that joins and records meetings
- Instant transcripts and AI meeting summaries
- Analytics to measure performance and coach teammates
❌ 失うもの:
- Free handwritten notes and drawing tools
- OCR text search inside images
- A truly free plan with no seat limits
📋切り替え方法:
- Copy any key notes out of your OneNote notebooks
- Sign up and invite Fireflies to your calendar
- Let it automatically join your next online meetings
What Our Review Didn’t Cover
This comparison focused on individual users and small teams. We did not test enterprise rollouts, custom API builds, or bulk Microsoft 365 licensing. OneNote functionality varies depending on the device, and the 簡略化された version on phones drops some tools you get on desktop. Formatting can also shift across different platforms. Our notes are based on the June 2026 versions of each app, so features may change. If you run a large department, your priorities may differ from what we covered here.
最終評決
| カテゴリ | 勝者 |
|---|---|
| 💰価格 | マイクロソフト OneNote |
| 🚀 Meeting Features | ホタルAI |
| ⚡ 文字起こし | ホタルAI |
| 🎯 Analytics & Insights | ホタルAI |
| ✍️ Note Organization | マイクロソフト OneNote |
| 🔌 連携機能 | ホタルAI |
| 🏆総合優勝 | ホタルAI |
🏆 WINNER: FIREFLIES AI
Fireflies AI wins 4 out of 6 categories.
最適な用途: recording meetings, instant transcripts, and meeting analytics for small teams.
Fireflies AI and Microsoft OneNote are two very different products.
Fireflies is an AI meeting assistant that records, transcribes, and analyzes meetings.
OneNote is a free note taking app that helps you organize information and ideas.
OneNote is excellent for handwritten notes, drawing, and personal organization at no cost.
But if your work runs on online meetings, Fireflies AI is the better choice. It saves hours of manual note-taking and gives you instant transcripts.
Fireflies AIの比較をもっと見る
Here is how Fireflies AI stacks up against other meeting tools:
ホタルAI対 ノッタ
Fireflies AIが以下の点で勝利: deeper conversation intelligence, CRM auto-fill, and a larger app store for automation.
Nottaが勝利した点: cleaner interface for beginners, and accuracy that some users find more reliable for plain transcription.
ホタルAI対 ミートギーク
Fireflies AIが以下の点で勝利: 60+ language support versus MeetGeek’s 20+, plus broader integrations and richer analytics.
MeetGeekが勝った点: simpler setup and a more guided onboarding for first-time users.
ホタルAI対 組み立て
Fireflies AIが以下の点で勝利: soundbites, a bigger integrations library, and faster meeting recaps after each call.
アセンブリーが勝利した点: structured task assignment and detailed meeting minutes formatting.
Microsoft OneNoteの比較をもっと見る
Here is how Microsoft OneNote stacks up against other note apps:
Microsoft OneNoteと エバーノート
OneNoteが優れている点: a truly free plan, more flexible page layout, and 5GB of free storage with no sync limits.
Evernoteが優れている点: a sharper web clipper, stronger OCR, and a more polished, structured experience.
OneNoteが優れている点: free-form handwriting, drawing tools, and offline-friendly note taking on the desktop version.
Notionが勝利した点: databases, project boards, and connected docs for team wikis.
Microsoft OneNoteと クラフト
OneNoteが優れている点: price, deep Microsoft Office links, and OCR search across handwritten notes.
クラフトの勝利点: a cleaner design and a smoother writing experience on Apple devices.
よくある質問
FirefliesのAIは何に使われているのですか?
Fireflies AI helps teams transcribe, summarize, search, and analyze voice conversations. It automatically joins online meetings, records them, and turns each call into searchable meeting notes with action items.
Fireflies AIは無料で利用できますか?
Yes, there is a limited free plan and a free 7-day trial. Paid plans start at $10/month and add more transcripts, storage, and analytics for growing teams.
Microsoft OneNoteは無料ですか?
Yes. OneNote is a free, stand-alone app with 5GB of storage. A paid Microsoft 365 subscription adds 1TB of cloud storage and premium features.
FirefliesのAIはどの程度正確なのか?
Accuracy is reported around 90%. It works well for clear audio, but you may need to proofread transcripts for speakers with strong accents or noisy calls.
Which is better for meetings, Fireflies AI or OneNote?
Fireflies AI is better for meetings. It records and transcribes calls automatically. OneNote is better for typing, organizing, and handwriting your own notes by hand.













