HubSpot vs Substack
Which one do AI engines recommend, and how do they differ on price, fit and features?
The short answer
HubSpot is the stronger AI pick in Email Marketing: it has a visibility score of 29.4 versus 0 for Substack.
Choose HubSpot if…
- You want the brand AI engines rank higher (29.4 vs 0)
- You need SOC 2 Type II or SOC 3 coverage
- intuitive, user-friendly interface
- generous free tier
Choose Substack if…
No clear advantage in the published data.
AI visibility side by side
Latest weekly run · Nov 2
| Metric | HubSpot | Substack |
|---|---|---|
| Visibility score | 29.4% | 0% |
| Change vs last week | New | New |
| Rank in Email Marketing | #4 | #55 |
| Share of voice | 6.8% | 0% |
| Mentions this run | 36 | 0 |
| Positive in AI answers | 35% | — |
The stronger value in each row is marked with a ✓.
Visibility score trend
Weekly runs over the last 60 days
HubSpot 0pp · Substack 0pp over 0 weekly runs.
Engine by engine
HubSpot leads on 3 of 3 engines
Head to head in AI answers
0 engine answers name both brands
Features, pricing & fit
| Dimension | HubSpot | Substack |
|---|---|---|
| Pricing model | Per seat | — |
| Entry price | Free; paid from $7 per seat / mo | — |
| Free plan | Yes | — |
| Onboarding fee | $3,000 | — |
| Deployment | Cloud | — |
| Integrations | 2000+ | — |
| Compliance | SOC 2 Type II, SOC 3 | — |
| Support | Phone | Help center, Resource center, Community and programs |
| Founded | 2006 | 2017 |
| Headquarters | Cambridge, Massachusetts, United States | — |
| Employees | 5,000+ | — |
| Funding | Corporate round | Series C · $200M raised |
| Best for | Startups, small and mid-sized businesses and enterprises wanting marketing, sales and service on one CRM. | Writers, journalists, podcasters, video creators and media companies that want to sell subscriptions directly to readers |
Plans side by side
HubSpot
Substack
Pricing not available.
Pros and cons
Themes from the AI answers that mention each brand
HubSpot
- intuitive, user-friendly interface
- generous free tier
- all-in-one CRM and marketing platform
- tight CRM integration for live chat and service
- good fit for startups and small businesses
- higher-tier costs and onboarding fees
- higher month-to-month pricing than annual plans
Substack
Profile in progress.
Data collected ·ChatGPT, Perplexity, Google AI Mode·coverage 100%·next run
Cite as: SlateIndex, “HubSpot vs Substack”, https://slateindex.ai/compare/hubspot-vs-substack, data of Nov 2, 2026. Licence: CC BY 4.0.