Full comparison
Why MythOS vs. the tool you're already using.
We looked at three categories of tool people use today for memory: personal knowledge managers, journaling apps, and social/publishing platforms. Here's where MythOS plays differently.
PKM apps
| Capability | Notion | Obsidian | Roam Research | Logseq | Reflect | Apple Notes | MythOS |
|---|---|---|---|---|---|---|---|
| Survives model/app migration | Manual export | Manual export | Manual export | Manual export | Manual export | No | Yes — portable by design |
| Accessible by outside AIs | No | No | No | No | No | No | API key + /llms.txt + MCP |
| Your library can talk back (RAG chat) | AI plugin | No | No | No | Yes | No | yes — native |
| Public sharing with attribution | Read-only | No | No | No | No | No | yes — live chat panel |
| Community / discussion | No | No | No | No | No | No | Yes |
| Newsletter built in | No | No | No | No | No | No | Yes |
| You own the data (export) | Yes | Yes | Yes | Yes | Yes | No | yes — markdown |
| SEO + GEO optimized | partial | No | No | No | No | No | yes — JSON-LD + llms.txt |
Journaling apps
| Capability | Day One | Journey | Stoic | Diarium | MythOS |
|---|---|---|---|---|---|
| Survives model/app migration | Manual export | Manual export | No | Manual export | Yes — portable by design |
| Accessible by outside AIs | No | No | No | No | API key + /llms.txt + MCP |
| Your library can talk back (RAG chat) | No | No | AI prompts | No | yes — native |
| Public sharing with attribution | Read-only | Read-only | No | No | yes — live chat panel |
| Community / discussion | No | No | No | No | Yes |
| Newsletter built in | No | No | No | No | Yes |
| You own the data (export) | Yes | Yes | No | Yes | yes — markdown |
| SEO + GEO optimized | No | No | No | No | Yes |
Social / publishing
| Capability | Substack | Ghost | Medium | BlueSky | Twitter/X | MythOS | |
|---|---|---|---|---|---|---|---|
| Survives model/app migration | Export | Export | No | Portable via AT Protocol | No | No | Yes — portable by design |
| Accessible by outside AIs | No | No | No | partial | No | No | API key + /llms.txt + MCP |
| Your library can talk back (RAG chat) | No | No | No | No | No | No | yes — native |
| Public sharing with attribution | Yes | Yes | Yes | Yes | Yes | Yes | yes — live chat panel |
| Community / discussion | Comments | Comments | Claps | Replies | Replies | Comments | yes — forkable |
| Newsletter built in | Yes | Yes | partial | No | No | Newsletter | Yes |
| You own the data (export) | Yes | Yes | No | Yes | Export | No | yes — markdown |
| SEO + GEO optimized | Yes | Yes | Yes | partial | partial | partial | yes — JSON-LD + llms.txt |