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 21, 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. |
| Key strength | Strong on pricing | Strong on pricing |
| 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 21, 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 21, 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.
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.
Still deciding?
Take our 2-minute quiz and get a personalized tool recommendation for your workflow.
Take the quizMore comparisons