Connected Papers
Serpstat
| Feature | Connected Papers | Serpstat |
|---|---|---|
| Pricing | Free / from $3/mo | Free / from $59/mo |
| Free Plan | ✓ Yes | ✓ Yes |
| Rating | 4.3 / 5 | 4.1 / 5 |
| Best For | researchers, students, academics, literature-reviewers | small-businesses, freelancers, agencies, content-marketers |
| Founded | 2019 | 2013 |
| Paper Graphs | ✓ | ✗ |
| Prior Works | ✓ | ✗ |
| Derivative Works | ✓ | ✗ |
| Visual Exploration | ✓ | ✗ |
| Bibliography Builder | ✓ | ✗ |
| Sharing | ✓ | ✗ |
| Keyword Research | ✗ | ✓ |
| Rank Tracking | ✗ | ✓ |
| Site Audit | ✗ | ✓ |
| Backlink Analysis | ✗ | ✓ |
| Keyword Clustering | ✗ | ✓ |
| Competitor Research | ✗ | ✓ |
✓ Connected Papers Pros
- Visual graph exploration
- Free tier available
- Easy to use
- Finds hidden connections
✗ Connected Papers Cons
- Limited free graphs
- Academic only
- No citation management
✓ Serpstat Pros
- Affordable vs competitors
- Good keyword clustering
- API access
- All-in-one
✗ Serpstat Cons
- Smaller database
- UI needs improvement
- Slower crawling
The Verdict
Connected Papers is built for researchers and students, with a focus on paper-graphs and prior-works. Serpstat targets small businesses and freelancers and leads with keyword-research and rank-tracking.
On pricing, Connected Papers is the clear winner for budget-conscious users — starting at $3/mo compared to $59/mo for Serpstat. That $56/mo difference adds up quickly for growing teams.
Both offer free plans, so you can test each with your real workflow before committing to a subscription.
This is a genuinely close comparison. If you can, sign up for both free trials (where available) and run a one-week test with your actual team tasks before deciding.