KeepFlash vs Acres

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 Acres
Detail	KeepFlash	Acres
What it does	AI knowledge library for saved research	Local-first visual workspace with infinite canvas of Markdown cards in a folder you own
Stage	Not given	Not given
Founded	Not given	Not given
Based in	Not given	US
Pricing model	Freemium	Freemium
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.	14-day free trial, then either $59 one-time (early-adopter price, $99 after) for lifetime local use with every future update included, or $9/month for Acres Plus including app access, Sync (10 GB across 20 vaults), and Publish (100 boards, up to 50 MB each).
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	Infinite canvas whiteboard with cards, connectors, mindmaps and colored sections Kanban task view gathering all checkboxes with date-based sorting Built-in AI that edits cards with word-level diffs for approval Import from Obsidian vaults and Heptabase backups PDF highlighting and reading desk Wikilinks and backlinks navigation Database views with filtering, sorting and inline editing End-to-end encrypted Sync across devices Publish boards publicly with Publish feature
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	Cards stored as plain Markdown files in a folder you own, never locked in Agents build and modify boards directly via MCP, not just answer questions Works completely offline after activation with no telemetry or account required One-time $59 lifetime purchase with all future updates included
Community votes	0	0
DR (Domain Rating by Ahrefs)	2 no change since last check	20 +2 (up) since last check
Trust Flow (Majestic)	5	7
Citation Flow (Majestic)	23	25
Referring domains (Majestic)	25	36

5 details filled in for both companies.

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