Keila vs Substack: Pricing and Ratings Compared (2026)
Entry prices and free plans as read on each vendor's pricing page, and user ratings as published on review sites, for Keila and Substack side by side. This page compares data; it is not a hands-on review.
On the data: On the data below, Substack leads on a free plan. We do not name an overall winner for this pair.
Short on time? Here's the quick answer
Based on published vendor pricing and features and on public review data, here's who should pick what:
Keila
Open-source email newsletter tool for easy and reliable campaign management.
Best for you if:
- • You want 100% Open Source, offering full control and no vendor lock-in
Substack
Newsletter platform for writers
Best for you if:
- • You want a free tier before you commit
| At a Glance | Keila | Substack |
|---|---|---|
Starts at | From $8.56/mo, billed monthly Keila XS plan | Free plan |
Category | Email Marketing Newsletter Tools | Writing & Content Membership Sites |
Rating | n/a | 2.4/5 Trustpilot 1.3 · G2 4.3 179 reviews |
Free plan | No | Yes |
Watch out for | n/a | Stripe payment processing fees (approx. 2.9% + $0.30 per transaction) |
Choose Keila or Substack?
Choose Keila if
- You want 100% Open Source, offering full control and no vendor lock-in
- You want strong emphasis on user privacy with customizable tracking options
- You work in email marketing, not writing & content
Choose Substack if
- You want a free tier before you commit
- You want completely free to start
- You want built-in payments
- You work in writing & content, not email marketing
In-Depth Analysis
Keila
Open-source email newsletter tool for easy and reliable campaign management.
Keila's pricing is fair, offering a clear value proposition based on email volume.
Strengths
- Pro: 100% Open Source, offering full control and no vendor lock-in
- Pro: Strong emphasis on user privacy with customizable tracking options
- Pro: Flexible email creation methods to suit different user preferences
- Pro: Powerful segmentation and personalization capabilities for targeted campaigns
- Pro: Hosted in the EU, ensuring strict European privacy standards
Weaknesses
- Con: Zapier integration is currently in private beta, limiting no-code/low-code options for some users
- Con: Requires self-hosting for full data control, which may require technical expertise
- Con: Being open-source, community support might be the primary channel for some issues
Key features
Substack
Newsletter platform for writers
Substack's pricing is incredibly generous, offering a full-featured free tier and only taking a 10% cut of revenue for paid newsletters.
Watch out
Stripe payment processing fees (approx. 2.9% + $0.30 per transaction)
Strengths
- Pro: Completely free to start
- Pro: Built-in payments
- Pro: Simple to use
- Pro: Large network
Weaknesses
- Con: 10% revenue cut
- Con: Limited customization
- Con: Basic features
Key features
Plans and prices: Keila vs Substack
| Tool | Plans and prices | Source |
|---|---|---|
| Keila |
| keila.io/pricing read Oct 5, 2026 |
| Substack |
| substack.com read Oct 8, 2026 |
Prices as read on each vendor's own pricing page on the date shown. Plans are listed per tool and are not matched against the other tool's plans: a plan name or price in one column says nothing about the same row in the other. Details on Keila pricing and Substack pricing.
Key Takeaways
Keila
- Choose if you want open-source email newsletter tool for easy and reliable campaign management
Substack
- Has a free plan
What the data shows
On the data below, Substack leads on a free plan. We do not name an overall winner for this pair.
- Only Substack has a published user rating (2.4/5 from 179 reviews); Keila has none we can show.
- Keila starts at $8.56/mo, billed monthly; Substack has no public paid plan price on file.
- Only Substack has a free plan.
Criteria: user rating (only above 20 reviews on both sides, gap of 0.2 or more), entry price (only on the same billing basis), free plan. How we rate
Frequently Asked Questions
How do Keila and Substack compare in 2026?
On the data below, Substack leads on a free plan. We do not name an overall winner for this pair. Only Substack has a published user rating (2.4/5 from 179 reviews); Keila has none we can show. Keila starts at $8.56/mo, billed monthly; Substack has no public paid plan price on file. Only Substack has a free plan.
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's cheapest paid plan is Keila XS at $8.56/mo, billed monthly. Substack has no public paid-plan price on file. Prices read on the vendors' pricing pages, latest check Oct 8, 2026.
What's the main difference between Keila and Substack?
Keila's main strength: 100% Open Source, offering full control and no vendor lock-in. Substack's main strength: completely free to start.