MailerLite
Depends
Confidence: Low
Small senders and creators are MailerLite's likely fit, but this review found no verifiable pricing, review, or security data . low confidence.
New check
Comparison
MailerLite vs Substack
MailerLite and Substack both land on Depends.
Substack
Depends
Confidence: High
Buy it if you're an independent writer who wants free publishing with payments and built-in discovery.
| Compare | ||
|---|---|---|
| Verdict | Depends | Depends |
| Best for | Creators sending regular newsletters | Independent writers and journalists |
| Who it's not for | Enterprises needing deep marketing automation and admin controls | Businesses needing brand control or custom design |
| Privacy | No known public vulnerabilities found in the sources reviewed.¹ | Two confirmed incidents: an October 2025 breach exposed user emails and phone numbers; another security incident was disclosed February 2026.10 |
| Support quality | Only marketing claim, no user evidence | Automated replies; hard to reach humans |
| Public sentiment | No user reviews or community discussions were found in the sources reviewed. | Reviewers praise the ease of use and monetization, but many complain about automated support, platform fees, and Substack turning into another social network.⁶ |
Pick MailerLite when
- Creators sending regular newsletters
- Small businesses wanting simple email campaigns
- Solo founders growing an audience
When MailerLite is not a fit
- Enterprises needing deep marketing automation and admin controls
- Buyers who require verified security or compliance docs upfront
- Teams wanting CRM, sales, and email in one platform
- Anyone with contact lists above ~100k needing enterprise deliverability support
Pick Substack when
- Independent writers and journalists
- Creators monetizing paid newsletters
- Zero-budget personal publications
- Writers wanting built-in discovery
When Substack is not a fit
- Businesses needing brand control or custom design
- Teams that require reliable human support
- Anyone collecting sensitive subscriber data
- Marketers needing funnels, automations, or CRM features
Sources
- Security pagemailerlite.comsecurity
- MailerLite homepagemailerlite.comofficial
- Substack review 2025 | TechRadartechradar.comreview
review
- Substack Reviews | G2g2.comreview
- Substack Reviews | Trustpilottrustpilot.comreview
review
- How much does Substack cost? - Substack Supportsupport.substack.comofficial
official
security
security
- Substack Custom Domain Vulnerability | GBHackersgbhackers.comsecurity
- Substack raises $100M | TechCrunchtechcrunch.comnews
official