Side by side
LeapSpace vs Perplexity
Both stand on ai research assistants. Which one you can start free with, which one lets you read the code, and what each costs once you pay.
Choose LeapSpace for research workflows that combine literature exploration, evidence checking, and reports that make their process visible. Individual subscriptions include Mendeley Reference Manager AI features, while organizations have administrative and support options. Look elsewhere if you need Reading Assistant for documents you cannot access or more than five PDF uploads in a conversation.
Visit LeapSpace
Perplexity combines real-time web search, citations, and file and app search, with additional capabilities at higher plan levels. Personal Computer has a macOS 15-or-later requirement, and API usage is separate from the listed plans.
Visit PerplexityThe facts
| LeapSpace | Perplexity | |
|---|---|---|
| Free plan | Yes | Yes |
| Open source | Not published | Not published |
| Runs on | Web | Android, API, iPhone, Mac, Web, Windows |
| Lowest paid plan | LeapSpace yearly: £250 a year | Pro: $20 a month |
| Plans published | 3 | 15 |
| Maker | Not published | Not published |
| Website | elsevier.com | perplexity.ai |
| On ai research assistants | #20 of 28 | #16 of 28 |
LeapSpace: what it does well
- Search supports interdisciplinary questions and follow-ups.
- Deep Research reports show patterns, contradictions, gaps, and process steps.
- Writing Coach checks claims without automatically editing them.
- Trust Cards and Claim Radar give two views of claim support.
- Uses Scopus-indexed content, publisher full text, and curated funding data.
What to know first
- Reading Assistant is limited to documents users are entitled to access.
- Each conversation allows up to five PDF uploads.
- The individual yearly plan excludes additional journal and book reading access.
- Organization pricing is available on request.
Perplexity: what it does well
- Answers include inline citations.
- Search spans the web, files, and connected apps.
- Can choose among more than 20 models.
- Deep Research produces a report.
- Available on web, mobile, macOS, and Windows.
What to know first
- Free use is limited and aimed at simple questions.
- Pro costs $20 a month.
- Max costs $200 a month.
- API usage requires separate credits.
Alternatives to LeapSpace Alternatives to Perplexity The whole list