2026年版 Memの代替ツール
Memから乗り換える理由
AIの魔法は当たり外れ — 金脈を掘り当てることもあれば意味不明なことも、構造の制御を失う
Mem free: Free tier with limited AI | easy learning curve
Notion
Free personal plan何が違うのか: Teams that want docs, wikis, and project tracking in one tool
料金比較: Mem: Mem Plus $14.99/mo | Notion: Plus $8/user/mo
Obsidian
Free for personal use何が違うのか: Power users and developers who want to own their data and build a personal knowledge graph
料金比較: Mem: Mem Plus $14.99/mo | Obsidian: Commercial $50/user/year
Evernote
Free with 60MB/mo uploads and 1 device何が違うのか: People who clip a lot of web content and want powerful search across all their notes
料金比較: Mem: Mem Plus $14.99/mo | Evernote: Personal $14.99/mo
Roam Research
No free plan何が違うのか: Researchers and writers who think in connected ideas and want block-level linking
料金比較: Mem: Mem Plus $14.99/mo | Roam Research: Pro $15/mo
Bear
Free with basic features何が違うのか: Apple users who want a beautiful, distraction-free writing experience
料金比較: Mem: Mem Plus $14.99/mo | Bear: Bear Pro $2.99/mo or $29.99/year
Logseq
Free and open source何が違うのか: Privacy-conscious thinkers who want Roam-style bidirectional linking without the subscription
料金比較: Mem: Mem Plus $14.99/mo | Logseq: Logseq Sync $5/mo (optional cloud sync)
Craft
Free with limited blocks何が違うのか: Apple users who want the most visually polished note-taking experience on Mac, iPad, and iPhone
料金比較: Mem: Mem Plus $14.99/mo | Craft: Pro $5/mo
Tana
Free for personal use何が違うのか: Power users who want to build their own personal operating system with structured, queryable notes
料金比較: Mem: Mem Plus $14.99/mo | Tana: Tana Pro $10/mo
Capacities
Free for personal use何が違うのか: Visual thinkers who want Notion’s flexibility with a more personal, object-oriented knowledge system
料金比較: Mem: Mem Plus $14.99/mo | Capacities: Pro $9.99/mo
Reflect
Personal $10/mo何が違うのか: Privacy-conscious thinkers who want Roam-style networked notes without sacrificing encryption or speed
料金比較: Mem: Mem Plus $14.99/mo | Reflect: Personal $10/mo
Amplenote
Free with core note-taking features何が違うのか: People who are tired of juggling a note app plus a task app plus a calendar — this merges all three
料金比較: Mem: Mem Plus $14.99/mo | Amplenote: Pro $5.84/mo (billed annually)