評価の結論
If you are buying exactly one tool for a team, Notion remains the safest answer. Its strength is not depth in any single feature but that everything grows on the same tree: the requirements doc sits next to the task board, and the board next to the meeting notes. The cost of that freedom is that a team without conventions will have an information landfill three months in.
良い点
- Docs, databases, tasks and wiki in one place
- An enormous supply of templates and community material
- The free plan is generous for individuals
気になる点
- Slows down once many database views pile up
- The permission model is complex for small teams
- Offline use is still mediocre
概要
Notion とは?
Docs, databases and boards in one workspace — the default knowledge base for teams.
Notion は何に使う?
向いている人
Teams of 5 to 50 people that need a knowledge base plus light project management
- Teams of 5 to 50 that need documentation to accumulate
- Product roles managing both docs and light projects
- People who prefer to build their own system over buying a finished one
主な機能
Every page is a database row, so docs and structured data stay one system
See the same data as table, board, calendar or timeline
Build a structure once and reuse it team-wide
Publish a single page as a web page
利用シーン
- #1
Team knowledge base and onboarding handbook
- #2
Product requirement docs and cycle records
- #3
Personal reading notes, job hunting and life admin
使い始め方
Web でメールまたは Google アカウントで登録。無料枠はすぐ使えます。
最初から全データを移さず、最小構成で進め方に合うか確認します。
1週間使ってから、席数・枠・権限のどこが制約かを見ます。
料金
| プラン | 対象 | 料金 |
|---|---|---|
| 無料 | Teams of 5 to 50 people that need a knowledge base plus light project management | 無料版 |
| Team | チームと権限管理 | Pro $12/月 |
| Enterprise | SSO・監査・専任サポート | お問い合わせ |
同カテゴリ比較
| ツール | 評価 | 無料枠 | 開始価格 | 向いている人 |
|---|---|---|---|---|
| Notion現在 | 4.8 | あり | Pro $12/月 | Teams of 5 to 50 people … |
| Obsidian | 4.7 | あり | 法人利用 $50/年 | Research-minded users wh… |
| Yuque | 4.5 | あり | プロ版 ¥99/人/年 | Engineering teams that n… |
代替ツール
よくある質問
無料プランはありますか?
中国本土から直接アクセスできますか?
UI とドキュメントは中国語対応ですか?
Notion はどの環境で使えますか?
Notion の代替ツールは?
データのエクスポートは可能ですか?

レビュー 3
実際の使用感を共有してください。ログイン後に投稿できます。
Three years in, now running a 40-person team on it. Database views are the real win — one table, many views, no more exports. Set naming conventions before inviting people.
Pages get noticeably slow once you have a lot of them, especially synced databases. Otherwise solid, and permission inheritance beats Confluence.
Offline is basically unusable — could not edit a page on a flight. Collaboration is fine, but think twice before making it your only knowledge base.
関連ガイド
更新と収録
評価方法:編集部が2週間以上実アカウントで利用し、料金・実測・ユーザー評価を加重。ベンダーは関与しません。
