SendPortal
Niche FitSelf-hosted open-source email campaign manager. Integrates with Amazon SES, Postmark, Mailgun, and SendGrid. Zero vendor lock-in, zero monthly cost.
Free 2 hour setup
Prices checked April 5, 2026
58/100
Tool matchup
SendPortal vs Substack
SendPortal vs Substack for consultants. Compare two Marketing & Content tools on pricing, setup speed, strengths, and Curalo score.
Substack
Strong ChoiceNewsletter publishing with built-in paid subscriptions and a reader network. Free to publish; Substack takes 10% of paid subscription revenue.
Free, usage-based fees 5 min setup
Prices checked October 23, 2026substack.com pricing page
81/100
Verdict
Substack leads by 23 points (clear winner).
Decision guidance
- Substack currently leads with 81/100.
- Substack strength: Strong on pricing.
- SendPortal trails Substack most on Setup speed: 10/20 vs 18/20.
What drives this decision
- Setup speed favors Substack by 8 points.
- Outcome fit favors Substack by 7 points.
- UX polish favors Substack by 6 points.
Decision shortcuts
Which one fits your practice
Choose SendPortal if
- Best fit: Developer-consultants who want self-hosted outreach with zero vendor lock-in
- Integrations matters most to you: SendPortal scores 8/15 vs 6/15 for Substack.
Choose Substack if
- Best fit: Consultants building authority through regular writing who want readers to find them, not just an email tool
- Setup speed matters most to you: Substack scores 18/20 vs 10/20 for SendPortal.
- UX polish matters most to you: Substack scores 13/15 vs 7/15 for SendPortal.
Client-ready brief
Get this comparison decision brief
Send a concise summary of winner, trade-offs, and rollout recommendation.
- SendPortal: 58/100
- Substack: 81/100
- Substack leads by 23 points (clear winner).
Best fit
Who each tool is for
SendPortal
Niche FitBest for: Developer-consultants who want self-hosted outreach with zero vendor lock-in.
Why pick it: Zero monthly cost after setup. You own the infrastructure and data — no vendor lock-in, no usage fees beyond your email provider.
Watch for: Requires server administration skills. If you are not comfortable deploying a Laravel app, use a hosted tool instead.
Substack
Strong ChoiceBest for: Consultants building authority through regular writing who want readers to find them, not just an email tool.
Why pick it: Free to start, nothing to configure, and the recommendations network can bring readers you would not reach on your own.
Watch for: Little control over design, automations and segmentation, and few integrations. For a business newsletter with sequences and a CRM link, use Kit, MailerLite or Beehiiv.
Swipe sideways to compare all columns.
SendPortal | Substack | |
|---|---|---|
| Quick facts | ||
| Pricing sanity | Free | Free, usage-based fees |
| Setup speed | 2 hour setup | 5 min setup |
| Intelligence | Focused | Medium |
| Integrations | 3+ | 1+ |
| Score breakdown | ||
| Outcome fit | 14/25 | 21/25 |
| Setup speed | 10/20 | 18/20 |
| Pricing sanity | 14/15 | 14/15 |
| Integrations | 8/15 | 6/15 |
| UX polish | 7/15 | 13/15 |
| Trust & support | 5/10 | 9/10 |
| Summary | ||
| Best for | Developer-consultants who want self-hosted outreach with zero vendor lock-in. | Consultants building authority through regular writing who want readers to find them, not just an email tool. |
| Main weakness | Weaker on UX | Fewer integrations |
Pricing
Plan-by-plan pricing
SendPortal
Plan-by-plan pricing is not recorded yet. See the starting price above and the vendor's pricing page.
Prices checked April 5, 2026
Substack
| Plan | Price | Limits (vendor's wording) |
|---|---|---|
| Free newsletter | Free | Unlimited subscribers and posts; website and archive |
| Paid subscriptions | Price not listed | Substack keeps 10% of paid subscription revenue, plus Stripe card fees |
Prices checked October 23, 2026substack.com pricing page
Cost calculator
What would you pay?
Seats
Billing
SendPortal
Plan-by-plan pricing is not recorded yet. See the starting price above and the vendor's pricing page.
Substack
No paid plan with a listed Annual price fits this team size. Contact sales or check the vendor's page.
Uses list prices from each vendor's pricing page, before tax and discounts. Free plans and custom-quote plans are left out.
Method
How we checked
- Scores: Curalo rates each tool out of 100 on six consultant criteria (outcome fit, setup speed, pricing, integrations, UX, trust and support). See the scoring method
- SendPortal: prices checked April 5, 2026.
- Substack: prices checked October 23, 2026 on the vendor's pricing page: substack.com
- Plans, limits and platforms are copied from each vendor's pricing page in the vendor's own terms.
- Anything a vendor does not publish is shown as not listed rather than guessed. Prices change, so confirm on the vendor's page before buying.
Used by consultants
- Yonatan GrossSubstackUses itTech & AI stack: Mostly tools for building software, AI and automations
From a consultant who wrote about this tool. This does not affect the score.
Common questions
Questions consultants ask before choosing
Which is better for consultants, SendPortal or Substack?
Substack scores 81/100 and SendPortal scores 58/100 on Curalo's consultant rubric. The biggest gap is Setup speed: Substack 18/20 vs 10/20.
Is SendPortal or Substack cheaper?
SendPortal: Free. Substack: Free, usage-based fees.
When is SendPortal the wrong choice?
Requires server administration skills. If you are not comfortable deploying a Laravel app, use a hosted tool instead.
When is Substack the wrong choice?
Little control over design, automations and segmentation, and few integrations. For a business newsletter with sequences and a CRM link, use Kit, MailerLite or Beehiiv.
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