Hotjar
Mendeley
| Feature | Hotjar | Mendeley |
|---|---|---|
| Pricing | Free / from $32/mo | Free only |
| Free Plan | ✓ Yes | ✓ Yes |
| Rating | 4.4 / 5 | 4 / 5 |
| Best For | ux-designers, product-managers, marketers, conversion-optimizers | researchers, phd-students, academics, collaborative-teams |
| Founded | 2014 | 2008 |
| Heatmaps | ✓ | ✗ |
| Session Recordings | ✓ | ✗ |
| Surveys | ✓ | ✗ |
| Feedback Widgets | ✓ | ✗ |
| Funnels | ✓ | ✗ |
| User Interviews | ✓ | ✗ |
| Dashboards | ✓ | ✗ |
| Reference Management | ✗ | ✓ |
| Pdf Annotation | ✗ | ✓ |
| Citation Styles | ✗ | ✓ |
| Research Network | ✗ | ✓ |
| Datasets | ✗ | ✓ |
| Collaboration | ✗ | ✓ |
✓ Hotjar Pros
- Heatmaps show exactly where users click
- Session recordings reveal UX issues
- Easy to install (one script tag)
- Surveys and feedback widgets included
✗ Hotjar Cons
- Can slow down site if not configured well
- Session recordings take time to review
- Limited to web — no mobile app analytics
✓ Mendeley Pros
- Free
- Social network features
- Good PDF reader
- Citation plugin
✗ Mendeley Cons
- Elsevier ownership concerns
- Sync issues
- Desktop app discontinued
The Verdict
Hotjar is built for ux designers and product managers, with a focus on heatmaps and session-recordings. Mendeley targets researchers and phd students and leads with reference-management and pdf-annotation.
Mendeley uses custom enterprise pricing, while Hotjar starts at $32/mo — a tangible advantage for teams with a fixed budget.
Both offer free plans, so you can test each with your real workflow before committing to a subscription.
Hotjar edges out on user ratings (4.4 vs 4). While both are well-regarded, that gap reflects real differences in user satisfaction worth considering.
Feature-wise, Hotjar offers broader built-in capabilities (7 features vs 6), while Mendeley takes a more focused approach — which can mean a simpler, faster onboarding experience.
Bottom line: Hotjar has a slight overall edge — but if free matters most to you, Mendeley may still be the right call.