KeepFlash vs Einko

A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.

KeepFlash compared with Einko
Detail	KeepFlash	Einko
What it does	AI knowledge library for saved research	Notes and tasks in one app
Stage	Not given	Not given
Founded	Not given	Not given
Based in	Not given	US
Pricing model	Freemium	Free trial
Pricing	Free: $0 with 150 notes, 2 spaces, 500MB storage. Plus: $6.58/month (billed yearly) with unlimited notes, 10 spaces, 10GB storage. Pro: $12.42/month (billed yearly) with unlimited spaces, 50GB storage.	Free for 30 days (no credit card required). Founding member subscription: $3.99 per month, billed yearly at $47.88 USD plus tax. Price locked for current subscribers; price increases for new members later.
Key features	Save webpages, PDFs, YouTube videos, files, and notes Full-text search across saved content Semantic search by meaning PDF annotations and highlighting AI-assisted tagging Topic Pages from related notes Ask questions with source citations Browser extension for one-click saving Block editor for notes Agent access via MCP protocol	Unified capture box for notes and tasks Task scheduling with dates, repeats, and reminders Note cards with customizable covers and previews Offline capture on mobile web app 10 GB of storage Encrypted storage and data privacy Merge notes together
What makes it different	Source-linked answers with citations to original materials Keeps content and source together for retrieval Searchable by meaning, not just titles Automatic organization of related ideas into Topic Pages Integrates with AI agents for grounded answers	Single app combining notes and tasks instead of switching between multiple tools Decide later workflow: capture first, organize when ready Direct integration with Notion for sending organized content
Community votes	0	0
DR (Domain Rating by Ahrefs)	2 no change since last check	2 no change since last check
Trust Flow (Majestic)	5	0
Citation Flow (Majestic)	23	9
Referring domains (Majestic)	25	5

5 details filled in for both companies.

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