AI knowledge tools with a free trial
The INITE Atlas lists 57. By use, the list opens with Onyx, Document360, Tana, Tettra and Capacities.
The pricing page offers a free trial, with its length where it prints one.
Where each one says so
| Tool | Where it says so | Price | Visits/mo |
|---|---|---|---|
| free trialonyx.app/pricingread Oct 7, 2026 | Free plan · From $20/user/mo | 27.3k | |
| 14-day trialdocument360.com/pricingread Oct 7, 2026 | Contact sales | 23.3k | |
| 30-day trialtana.inc/pricingread Oct 8, 2026 | Free plan · From $20/user/mo | 11.4k | |
| 30-day trialtettra.com/pricingread Oct 7, 2026 | From $8/user/mo | 10.4k | |
| free trialcapacities.io/pricingread Oct 16, 2026 | Free plan · From $9.99/mo | 4.6k | |
| 14-day triale-labus.com/pricingread Oct 22, 2026 | Free plan · From $19.99/mo | 2.3k | |
| 14-day trialkapa.ai/pricingread Oct 7, 2026 | Free plan | 2.1k | |
| 7-day trialyaps.ai/pricingread Oct 8, 2026 | Free plan · From $12/mo | 2k | |
| 14-day trialscrevi.com/pricingread Oct 16, 2026 | From $5/mo | 1.6k | |
| 14-day trialfennie.airead Oct 9, 2026 | Free plan · From $4.99/mo | 805 | |
| free trialnewscatcherapi.com/pricingread Oct 8, 2026 | Free plan · From $50/mo | 490 | |
| 7-day trialmdflow.cz/pricingread Oct 18, 2026 | Free plan · From ≈ $5.61/mo | 182 | |
| 7-day trialaichatexport.appread Oct 10, 2026 | Free plan · From $7.99/mo | 181 | |
| 14-day trialdashworks.ai/pricingread Oct 8, 2026 | From $10/user/mo | 172 | |
| 14-day trialfastero.com/pricingread Oct 18, 2026 | Free plan · From $20/user/mo | 163 | |
| 7-day trialmy-study-ai.com/pricingread Oct 15, 2026 | Free plan · From $7.50/mo | 146 | |
| 7-day trialstudigems.comread Oct 10, 2026 | Free plan · From $4/mo | 130 | |
| free trialhanyuguide.com/pricingread Oct 19, 2026 | From $9.99/mo | 99 | |
| 7-day trialaino.md/pricing/index.htmlread Oct 11, 2026 | Free plan · From $2.99/mo | 78 | |
| 14-day trialstashr.me/pricingread Oct 11, 2026 | Free plan · From $6/mo | 68 | |
| 14-day trialranklogs.com/pricingread Oct 19, 2026 | From $19/mo | 45 | |
| 7-day trialkompas.airead Oct 8, 2026 | Free plan · From $3/mo | 39 | |
| free trialclaritybriefs.com/pricingread Oct 19, 2026 | Free plan · From $1/mo | 30 | |
| 7-day trialcatchthemail.com/pricingread Oct 19, 2026 | From $16.99/mo | 27 | |
| free trialaitoaihub.com/pricingread Oct 11, 2026 | Free plan · From $19/mo | 18 |
Ranked by use
Figure and bar: visits/mo, estimate · year: online since
- #13

Onyx
Open source AI chat platform that searches your docs, apps and knowledge base to answer questions with grounded responses.
27.3kActiveFrom $20/user/mo - #14

Document360
Hosts knowledge bases and product documentation with an editor, versioning, search and an in-product help widget.
23.3kActiveContact sales - #20

Tana
Outliner workspace that stores notes, tasks and meeting transcripts as linked nodes with typed fields, plus an assistant that acts on them.
11.4kActiveFrom $20/user/mo2021 - #21

Tettra
Builds internal knowledge bases and answers repetitive questions via AI bot in Slack and web interface.
10.4kMaintainedFrom $8/user/mo - #25

CapacitiesMCP · sign-in
Turns notes, tasks and sources into linked objects, and surfaces places where notes mention each other without a link.
4.6kActiveFrom $9.99/mo2022 - #31

E-LabusMCP · sign-in
Explains each number on an uploaded lab report photo or PDF and tracks how markers change over time.
2.3kActiveFrom $19.99/mo2012 - #32

Kapa AI
Ingests and retrieves unstructured knowledge from multiple sources to provide accurate context for AI agents.
2.1kActiveFree plan - #33

Yaps
Transcribes speech to text, takes notes, reads text aloud, and translates—all processing locally on your device.
2kActiveFrom $12/mo2026 - #34

ScreviMCP · sign-in
Saves articles, newsletters, books and podcasts, then resurfaces your highlights through spaced-repetition review and exposes them to Claude for search.
1.6kActiveFrom $5/mo - #37

Meet Fennie,Your AI Study Assistant
Generates personalized study plans, quizzes, and flashcards from course syllabi, adapting daily based on student performance.
805ActiveFrom $4.99/mo - #42

NewsCatcherMCP · open
Searches and streams news articles from 140,000 sources with entity resolution and real-time monitoring.
490ActiveFrom $50/mo - #57

MDflowMCP · sign-in
Stores markdown files in shared workspaces with a browser editor, tasks from checkboxes, public knowledgebase links, and API and MCP access.
182ActiveFrom ≈ $5.61/mo - #59

ChatExport
Exports ChatGPT conversations to PDF, markdown, HTML, or text on iPhone with offline encryption.
181ActiveFrom $7.99/mo - #61

Dashworks
Searches across all workplace apps and knowledge bases to answer team questions in real time.
172MaintainedFrom $10/user/mo - #64

FasteroMCP · sign-in
Connects warehouses and business tools, answers natural-language questions with the query behind each result, and flags metric changes with Slack alerts and drafted follow-ups.
163ActiveFrom $20/user/mo - #67

StudyAI
Generates study notes, mind maps, practice quizzes and flashcards from uploaded PDFs and past papers, with spaced repetition scheduling.
146ActiveFrom $7.50/mo - #73

StudiGEMS
Extracts syllabus deadlines and generates study guides, flashcards, and practice quizzes from course materials.
130ActiveFrom $4/mo - #82

HanyuGuideMCP · sign-in
Schedules HSK-levelled Chinese vocabulary flashcards with audio, timing each word's review with the FSRS memory model.
99ActiveFrom $9.99/mo - #86

Aino LifeOS
Organizes local markdown notes with AI that summarizes, rewrites, and tags content while preserving file control.
78ActiveFrom $2.99/mo - #88

StashrMCP · sign-in
Saves bookmarks from any platform, tags them with AI, and makes them searchable for you or your agents.
68ActiveFrom $6/mo - #101

RanklogsMCP · sign-in
Tracks keyword rankings, local map-pack positions, and AI-search citations across Google, ChatGPT, Gemini and Perplexity, plus site audits.
45ActiveFrom $19/mo2021 - #104

Kompas AI
Captures notes and conversations, connects them across sessions, and surfaces relevant past thoughts while writing.
39MaintainedFrom $3/mo - #109

ClarityBriefsMCP · open
Writes topic news briefings in the reader's language by synthesizing foreign-language sources with citations, sent by email.
30ActiveFrom $1/mo - #112

CatchTheMail
Summarizes forwarded emails, scores urgency by sector, and drafts replies without accessing the inbox.
27ActiveFrom $16.99/mo - #126

AI to AI Hub
Runs questions through multiple AI models simultaneously so they debate and critique each other's responses.
18ActiveFrom $19/mo - #132

OfficeX
Provides 200 business tools and playbooks for startup growth, sales, and marketing automation.
12ActiveFrom $30/mo - #144

TestChimpMCP · sign-in
Stores user stories and test scenarios as markdown specs in source control and runs agent-driven QA workflows against them.
8From $500/mo - #147

Full-Fill
Generates answers to RFPs, RFIs and questionnaires from your knowledge base and documents.
7ActiveFrom $79/user/mo - #151

Agentic NewsMCP · sign-in
Monitors thousands of news sources for user-chosen topics and delivers a deduplicated daily briefing of stories that pass automated validation.
7ActiveFrom $9/mo - #158

Neuron
Captures notes and ideas, then uses active recall prompts to help you remember and retrieve them.
5MaintainedFrom $10/user/mo - #159

PickpathlyMCP · open
Warehouse management software that tracks pick paths, client SOPs and labor standards, with free worksheets for cost, labor and reports.
5ActiveFrom $79/mo2026 - #164

Catch Up Outlook
Summarizes Outlook emails and attachments using AI to help users quickly process inbox overload.
4ActiveFrom $10/mo - #172

Pensieve
Builds a unified knowledge map from company data sources and feeds it to AI agents via standard protocols.
3ActiveFrom ≈ $670/mo - #176

RankPine
Researches your market and publishes one article daily to your site, optimized for Google and AI search.
3ActiveFrom $99/mo - #188

FAQ Hub
Embeds a support widget and portal that answers user questions by citing uploaded documents.
2ActiveFrom $49/mo - #194

SIGNLD
Connects business systems into a knowledge graph and answers leadership questions in plain English with source traceability.
2ActiveFrom $25/mo2016 - #215

GoMind AI
Captures tasks and notes through conversation, syncs calendars, and sends location-based reminders.
1ActiveFrom $5.99/mo - #216

Lyrenth
Serves cleaned, structured web pages as markdown and JSON to AI agents, reducing token consumption by up to 99%.
1ActiveFrom $19/mo - #217

MinervaAI
Note app that creates and edits notes, manages calendar, reads email, and builds widgets from your knowledge base.
1From $12/mo - #222

IndieSeek
Markdown and HTML reader for reviewing AI-generated documentation in a focused macOS workspace.
1ActiveFrom $10 once - #229

MindVoice
Captures voice thoughts, transcribes them, categorizes automatically, and delivers daily summaries.
1ActiveFrom $4.99/mo - #269

Voxtakr
Turns typed or spoken notes about IT work into structured, searchable documentation with templates, versioning and exports.
52 linking domainsActiveFrom $19/user/mo - #277

memsproutMCP · sign-in
Captures team knowledge once and pipes it into every AI agent and tool via MCP protocol.
34 linking domainsActiveFrom $10/mo - #293

NewsbookLM
Scores news articles per client persona and drafts a sendable briefing with your own take on each relevant story.
27 linking domainsFrom $79/mo - #296

neon comms & pr
Identifies newsworthy patterns in operational data and connects founders with relevant journalists for media coverage.
28 linking domainsActiveFrom $79/mo - #311

Onto
Serves website content as clean markdown to AI agents while keeping the original page unchanged for humans.
24 linking domainsActiveFrom $9/mo - #312

SensefoldMCP · sign-in
Stores notes, articles, and AI conversations in a shared markdown library that Claude, ChatGPT, and Cursor can read and write to.
22 linking domainsActiveFrom $16/mo - #318

SetAIComply
Classifies AI systems under EU AI Act, generates compliance documentation, and tracks regulatory obligations.
23 linking domainsMaintainedFrom ≈ $44/mo
How we read a tool
No votes, no reviews, no vendor claims. Every week a crawler reads each tool's own site and a few public registries, and the words on the card are bands over what it read.
- Use: visits to the site (estimated), installs from npm and PyPI, presence in Chrome's usage report.
- Activity: the newest release on GitHub, npm or PyPI; the newest dated page on the site; open roles on a public jobs board.
- Price: the vendor's own pricing page, read with the date. A figure is printed only when it is on that page.
- The line and the use cases are written by us from the homepage, one tool at a time, and refused when they repeat the vendor's marketing.
How AI assistants read each site — the reading vendors ask us about — is on each tool's own visibility page.
How we read every tool → · By INITE Atlas Desk
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