E-commerce · head to head
Hotjar vs Substack

Substack
News & Media
The newsletter platform for writers and publishers
- From
- Free
- Rated
- -
The short version
- Each has a real cost: Hotjar website performance impact - Hotjar tracking code can cause noticeable slowdowns affecting site speed and Google rankings; Substack substack takes a 10% cut of subscription revenue (writers keep 90%), plus separate credit card processing fees
- They diverge on capability: Hotjar covers Heatmaps, Substack covers Newsletter publishing.
Where they differ
Only the attributes on which Hotjar and Substack actually diverge.
Identical on both: starting price (Free), free tier (Yes), user rating (Not yet rated).
What each one covers
Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.
Only in Hotjar
- Heatmaps
- Session recordings
- Feedback widgets
- Surveys
- User interviews
- Conversion funnels
- Form analytics
- Rage click detection
Only in Substack
- Newsletter publishing
- Subscriber management
- Paid subscriptions
- Email analytics
- Post scheduling
- Archive creation
- Free/paid tier split
- Comments & discussion
What people use each for
The jobs each tool is most often brought in to do.
Hotjar
- User behavior analysisnot Substack
- Conversion optimizationnot Substack
- UX researchnot Substack
- Customer feedbacknot Substack
- Usability testingnot Substack
Substack
- Newsletter distributionnot Hotjar
- Reader monetizationnot Hotjar
- Community buildingnot Hotjar
- Subscriber managementnot Hotjar
Where each one falls short
Documented limitations, not opinions. Every one is a constraint you would hit in normal use.
Hotjar
- Website performance impact - Hotjar tracking code can cause noticeable slowdowns affecting site speed and Google rankings
- Session recording limits - free and lower-tier plans have monthly session recording caps that must be sampled above the limit
- Inaccurate heatmaps on dynamic pages - heatmaps fail to display correctly on pages with modals, sticky navigation bars, and pop-up overlays
- No mobile app - only web-based access available
- Not real-time analytics - includes slight data processing delay
Substack
- Substack takes a 10% cut of subscription revenue (writers keep 90%), plus separate credit card processing fees
Pricing, plan by plan
Hotjar
FreeNo published plan breakdown. See the Hotjar review.
Substack
Free- FreeFree
- Unlimited newsletters
- Basic design
- Archive access
- Pro$12/month
- Custom domain
- Advanced analytics
- Member chat
Which should you pick?
Choose Hotjar if
- You need heatmaps.
- You want to start without paying.
- You also want session recordings.
Choose Substack if
- You need newsletter publishing.
- You want to start without paying.
- You work on Web, Mobile.
- You also want subscriber management.
Questions people ask
- Is Hotjar or Substack better?
- Neither clearly leads. Hotjar starts at Free and Substack at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
- Which is cheaper, Hotjar or Substack?
- Hotjar starts at Free and Substack at Free.
- Does Hotjar or Substack run on more platforms?
- Hotjar runs on Web. Substack runs on Web, Mobile.
- Can I use Hotjar for free?
- Both have a free tier, so you can try either at no cost before committing.
- What is Hotjar best used for?
- Hotjar is most often used for user behavior analysis, conversion optimization, ux research, customer feedback. Of those, user behavior analysis and conversion optimization are not what Substack is typically brought in for.
- What can Hotjar do that Substack cannot?
- Hotjar covers Heatmaps, Session recordings, Feedback widgets, Surveys. Substack covers Newsletter publishing, Subscriber management, Paid subscriptions, Email analytics.
Answered from the vendors’ own pages
Hotjar: Does Hotjar have a free tier?
Yes. Hotjar's free plan (now under Contentsquare) includes 200,000 monthly sessions, 10,000 session replays, and unlimited heatmaps, with no time limit on the free tier.
SourceHotjar: Can I export my data from Hotjar?
Yes. Hotjar allows exporting heatmaps as JPG images, survey responses as CSV files, and session recording metadata. Advanced export options are available through the Hotjar API.
SourceHotjar: Does Hotjar provide real-time analytics?
No. Hotjar has a slight delay in data processing and does not offer true real-time analytics compared to some competitors.
SourceHotjar: What integrations does Hotjar support?
Hotjar integrates with Google Analytics, Google Tag Manager, Slack, HubSpot, Jira, Linear, Microsoft Teams, Zapier, and hundreds of other tools through its API and partner integrations.
SourceRelated pages
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- Substack vs Checkout.com
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- Substack vs Google News
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