Afforai vs ChatPDF vs Humata vs Paperguide

A side-by-side look at scores, pricing and features — with RECATOOLS' ASEAN-aware verdict for each.

Afforai Cited document chat plus a reference manager, now called Logically Visit ChatPDF Chat with any PDF document Visit Humata Cited answers pulled straight from your PDFs Visit Paperguide AI research assistant with semantic paper search Visit
RECATOOLS Score 6.5 / 10 6.8 / 10 6.5 / 10 6.8 / 10
Capability 6 6 6 6
Value for money 7 7 6 8
Ease of use 7 9 8 7
ASEAN readiness 6 6 6 5
API quality 3 5 4 5
Pricing Freemium Freemium Freemium Freemium
Free tier
Paid from
Has API
Open source
Free to use
Users
Founded 2023 2023
Maker
Verdict

The tool you may know as Afforai now trades as Logically (logically.app) after a 2025 rebrand — same team, same product, a domain change that caught out a lot of lifetime-deal buyers. What it does well is bundle three jo...

ChatPDF nails simplicity: upload a PDF, ask questions, get cited answers and summaries with almost no learning curve, plus a free tier for light use. For students, researchers, and professionals who just want to interrog...

Humata does one thing and does it decently: upload documents, ask questions, and get answers linked back to the exact source pages. That citation trail is its strongest card, reviewers rate it as close to best-in-class f...

Paperguide bundles AI literature search, citation-backed answers, a reference manager and an academic writing assistant over a large paper database, putting several research workflows in one tool. The free tier is unusua...

Full review → Full review → Full review → Full review →
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Comparisons cover up to 4 tools. Scores are RECATOOLS editorial assessments; verify current pricing on each vendor's site.