kOS

✓ verified, sync 2026-08-20

30 checks on record, most recent 2026-11-03 (responded).

PricingFree trial

Rating5.0 on Toolify · 63 reviews

Category AI Research ToolAI PDFAI Knowledge ManagementAI AssistantAI SummarizerAI Presentation Generator +4

First indexed2026-08-20

Observation record.

What was checked ourselves, with dates. Not vendor copy, not a rating.

Address confidence: low. The URL on file may not be kOS's own domain (for example a marketplace or parked host). The dates below describe checks against that URL; the link between that URL and kOS itself is not confirmed.

Most recent check 2026-11-03

Result: responded.

Checked on 30 distinct dates, since 2026-08-30. Checked roughly every 1.1 nights on this listing's own record.

2026-11-032026-11-022026-10-312026-10-302026-10-292026-10-282026-10-272026-10-262026-10-252026-10-242026-10-232026-10-22 +18

What this means: the 3-miss rule marks a listing discontinued only after three consecutive failed checks; a bot-wall response never counts toward that streak. the methodology

Price events.

auto-diffed on every sync: the changelog other directories don't keep

The price was checked on 2026-10-16 and no change was observed since.

price increase2026-08-20

0 → 9.99

Features

As listed by the vendor, unedited.

AI-powered research assistance
PDF database creation and management
Automatic citations
Instant presentation generation
Word cloud and index generation
Ethical AI usage tools
Secure and private operation

What it does.

The vendor's own description, unedited, not our claim.

kOS is a powerful research tool that allows users to create personal databases of PDFs. It provides assistance and proof of work for any field with Artificial intelligence, Discovery tools, instant presentations, and automatic citations.

registry ID ndock:tool:kos

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