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AI for Legal & Accounting Professionals

Personal Knowledge Management (PKM)

Here's a comparative table of Personal Knowledge Management (PKM) systems with a focus on features, pricing, technical difficulty, and their usefulness for organizing chat-based knowledge (like ChatGPT dialogues). I've included the tools you mentioned, plus a few extras for context.

Personal Knowledge Management (PKM)

Tool

Pricing (2025)

Best For

Features

Tech Difficulty

Good for Organizing ChatGPT Content?

Coda

Free / $10–$30/user/mo

Structured docs + automation

Tables, buttons, formulas, Zapier-style automation, AI integration, relational databases

✅ Excellent for structured storage + workflows

Notion

Free / $8–$15/user/mo

Aesthetic documents + all-in-one notes

Linked databases, AI assistant, rich media blocks, good templating

2,5

✅ Easy to tag/sort/categorize GPT threads

Obsidian

Free / $10/mo (Sync), $25+/mo (Publish)

Local-first, Markdown + backlinks

Graph view, plugins, daily notes, community themes

3,5

⚠️ Great for power users, requires setup

Roam Research

$15/mo individual, $500/yr enterprise

Networked thought, backlink-first thinkers

Bidirectional links, block referencing, daily pages

⚠️ Less linear, more for mind-mapping

Amplenote

Free / $5–$15/mo

Task-focused + simple linked notes

Backlinking, tasks, note types, mobile friendly

✅ Practical and mobile-friendly

Slab

Free / $8+/user/mo

Internal team knowledge bases

Clean wiki-style layout, versioning, integrations with GitHub, Slack

2,5

⚠️ Better for team docs than personal notes

Tana

Invite-only / $10+/mo

Outliner + structured data

Supertags, AI blocks, flexible schema for notes & workflows

✅ Powerful but high learning curve

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Mem.ai

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Free / $8–$15/mo

AI-powered note capture

Auto-organizes notes, good search, calendar integration

⚠️ Passive capture, less control over structure

Logseq

Free

Local-first graph-based PKM

Markdown-based, graph view, plugins, tasks

⚠️ Similar to Obsidian but more code-friendly

There are no rows in this table

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Recommendations by Use Case

If you want easy and beautiful: → Notion

If you want structured, automated workflows: → Coda

If you like task-first design: → Amplenote

If you’re a privacy-oriented power user: → Obsidian or Logseq

If you're managing internal team SOPs: → Slab

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Explore Your Use Case

Notion – for intuitive personal dashboards and tagging GPT threads.

Coda – if they want to build dynamic databases of prompts, with embedded GPT automation or links to Google Sheets.

Obsidian – for long-form, local, secure personal note archives—ideal for power users and those who like graph views.

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