Keila vs Substack: Which is Better in 2026?
Choosing between Keila and Substack comes down to understanding what each tool does best. This comparison breaks down the key differences so you can make an informed decision based on your specific needs, not marketing claims.
Short on time? Here's the quick answer
We've tested both tools. Here's who should pick what:
Keila
Open-source email newsletter tool for easy and reliable campaign management.
Best for you if:
- • You need email marketing features specifically
- • Open-source email newsletter tool with self-hosting options.
- • Offers flexible email editors, including visual, Markdown, and MJML.
Substack
Newsletter platform for writers
Best for you if:
- • You want to try before committing
- • You need newsletter tools features specifically
- • Simple newsletter platform with payments
- • Built-in paid subscription model
| At a Glance |  Keila |  Substack |
|---|---|---|
Starts at | $8/moKeila XS | FreeFree tier available |
Best For | Email Marketing | Newsletter Tools |
Rating | - | 4.4/5 |
Free plan | No | Yes |
Choose Keila or Substack?
Choose Keila if
Open-source email newsletter tool for easy and reliable campaign management.
- 100% Open Source, offering full control and no vendor lock-in
- Strong emphasis on user privacy with customizable tracking options
- Flexible email creation methods to suit different user preferences
- Your work is email marketing-shaped, not newsletter tools-shaped
Choose Substack if
Newsletter platform for writers
- Completely free to start
- Built-in payments
- Simple to use
- You want a free tier before you commit
- Your work is newsletter tools-shaped, not email marketing-shaped
| Feature | Keila | Substack |
|---|---|---|
| Pricing Model | Paid | Freemium |
| User Rating | No ratings yet | ★4.4/5 13 reviews |
| Categories | Email MarketingNewsletter Tools | Newsletter ToolsWriting & Content |
In-Depth Analysis
Keila
Open-source email newsletter tool for easy and reliable campaign management.
Strengths
- +100% Open Source, offering full control and no vendor lock-in
- +Strong emphasis on user privacy with customizable tracking options
- +Flexible email creation methods to suit different user preferences
- +Powerful segmentation and personalization capabilities for targeted campaigns
- +Hosted in the EU, ensuring strict European privacy standards
Weaknesses
- -Zapier integration is currently in private beta, limiting no-code/low-code options for some users
- -Requires self-hosting for full data control, which may require technical expertise
- -Being open-source, community support might be the primary channel for some issues
Key features
Substack
Newsletter platform for writers
Strengths
- +Completely free to start
- +Built-in payments
- +Simple to use
- +Large network
Weaknesses
- -10% revenue cut
- -Limited customization
- -Basic features
Key features
Pricing: Keila vs Substack
| Plan | Keila | Substack |
|---|---|---|
| Tier 1 | $8/month Keila XS | 0 forever Free |
| Tier 2 | $16/month Keila S | 10% of revenue Paid newsletters |
| Tier 3 | $32/month Keila M | N/A |
| Tier 4 | $64/month Keila L | N/A |
| Tier 5 | $128/month Keila XL | N/A |
| Tier 6 | $256/month Keila XXL | N/A |
Pricing verified from each vendor's public pricing page. Compare in detail on Keila pricing and Substack pricing.
Who Should Use What?
On a budget?
Substack has a free tier. Keila is paid only.
Go with: Substack
Want the highest-rated option?
Substack is rated 4.4/5. Keila has no ratings yet.
Go with: Substack
Value user reviews?
Keila: no ratings yet. Substack: 13 reviews (4.4/5).
Go with: Substack
3 Questions to Help You Decide
What's your budget?
Keila is paid. Substack is freemium. Substack lets you start free.
What's your use case?
Keila is a email marketing tool. Substack is in newsletter tools. Pick the category that matches your needs.
How important are ratings?
Substack is rated 4.4/5; Keila has no ratings yet.
Key Takeaways
Substack
- Free tier available
- Our pick for this comparison
Keila
- Better fit for email marketing
The Bottom Line
Substack is our pick.
Frequently Asked Questions
Is Keila or Substack better?
Substack is rated in our evaluation. Keila is paid and Substack is freemium.
What are Keila and Substack used for?
Keila: Open-source email newsletter tool for easy and reliable campaign management.. Substack: Newsletter platform for writers.
What does Keila cost vs Substack?
Keila is a paid tool. Substack is freemium (free tier + paid plans). Visit their websites for detailed pricing.