iA Writer vs Obsidian vs Paragraph Notes vs Ulysses
| Attribute | ||||
|---|---|---|---|---|
| Category | Content & Writing | Note-taking & Knowledge | Note-taking & Knowledge | Content & Writing |
| Pricing | Paid | Free tier | Free tier | Paid |
| Starting price | — | $4/seat/month | $19.99/month | $5.99/month |
| Free tier | No | Yes | Yes | No |
| Free trial | No | No | No | Yes |
| Deployment | — | Cloud | — | — |
| API available | Unknown | Unknown | Unknown | Unknown |
| Platforms | — | ios, android, windows, macos, linux | — | — |
| Certifications | — | — | — | — |
| Integrations | — | 2 | — | 1 |
| Company | Founded 2010 | Founded 2020 | — | — |
| Feature attributes | ||||
Also consider
Unknown values show as “Unknown”/“—”. Nothing is inferred — see each tool page for sources.