iA Writer
Substack
| Feature | iA Writer | Substack |
|---|---|---|
| Pricing | From $49.99/mo | Free / from $0/mo |
| Free Plan | ✗ No | ✓ Yes |
| Rating | 4.5 / 5 | 4.4 / 5 |
| Best For | writers, bloggers, minimalists, focused-writers | independent-writers, journalists, newsletter-creators, thought-leaders |
| Founded | 2010 | 2017 |
| Focus Mode | ✓ | ✗ |
| Markdown | ✓ | ✗ |
| Syntax Highlighting | ✓ | ✗ |
| Content Blocks | ✓ | ✗ |
| Publishing | ✓ | ✗ |
| Style Check | ✓ | ✗ |
| Newsletter | ✗ | ✓ |
| Paid Subscriptions | ✗ | ✓ |
| Podcast Hosting | ✗ | ✓ |
| Community Chat | ✗ | ✓ |
| Recommendations | ✗ | ✓ |
| Notes | ✗ | ✓ |
| Analytics | ✗ | ✓ |
✓ iA Writer Pros
- Beautiful minimalism
- Focus mode
- Cross-platform
- One-time purchase
✗ iA Writer Cons
- Very minimal features
- No collaboration
- Limited formatting
✓ Substack Pros
- Completely free to start — no monthly fees
- Built-in paid subscription infrastructure
- Network effects from Substack recommendations
- Simple writing interface without distractions
✗ Substack Cons
- 10% cut of paid subscriber revenue
- Limited design and branding customization
- No automation or complex email sequences
The Verdict
iA Writer is built for writers and bloggers, with a focus on focus-mode and markdown. Substack targets independent writers and journalists and leads with newsletter and paid-subscriptions.
On pricing, Substack is the clear winner for budget-conscious users — starting at $0/mo compared to $49.99/mo for iA Writer. That $49.99/mo difference adds up quickly for growing teams.
Substack has a free plan, which gives it a meaningful edge for individuals and small teams exploring their options. iA Writer requires a paid subscription from day one.
Feature-wise, Substack offers broader built-in capabilities (7 features vs 6), while iA Writer takes a more focused approach — which can mean a simpler, faster onboarding experience.
This is a genuinely close comparison. If you can, sign up for both free trials (where available) and run a one-week test with your actual team tasks before deciding.