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Private Writing Assistant vs OnlyRead

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

Private Writing Assistant compared with OnlyRead
DetailPrivate Writing Assistant logo Private Writing AssistantOnlyRead logo OnlyRead
What it doesSpelling and grammar checks in 101 languages, run entirely on your device Read-only mode for AI browser agents
StageNot given MVP
FoundedNot given Not given
Based inNot given Not given
Pricing modelFree Freemium
PricingNot given Free: $0/month, open source with bring-your-own-model key. Pro: Free during early access with 1,000 judged requests; $5/month when paid tier launches.
Key features
  • 101 languages supported with automatic language detection
  • Runs on device using Chrome's built-in AI model
  • Works in email drafts, Google Docs, and Google Slides
  • Fix single mistakes or all corrections at once
  • Toggle checking on and off with visible AI status
  • Blocks write, post, delete and purchase operations
  • Works with any Chromium browser and AI agent
  • App-specific rules and request classification
  • Open source codebase
  • Central control across multiple browsers (Pro)
  • One-link agent browser setup (Pro)
  • No API key required (Pro)
  • Per-account usage limits with fail-closed behavior
  • Tested on 1,000+ real tasks
What makes it different
  • Nothing sent to servers - all processing happens on your device
  • Supports 101 languages with automatic detection
  • Uses Chrome's native AI - no external model required
  • Works seamlessly across text boxes, email, docs and slides
  • Reduces accidental changes by AI agents without eliminating access to read data
  • Open source with full code transparency
  • Fail-closed design for unclassified requests
  • Tested against real AI agent tasks on major websites
  • Fully managed Pro option with no setup required
Free planNot given Not given
Open sourceNot given Not given
PlatformsNot given Not given
Public APINot given Not given
Community votes00
DR (Domain Rating by Ahrefs)Not checked yet no change since last checkNot checked yet no change since last check
Trust Flow (Majestic)00
Citation Flow (Majestic)00
Referring domains (Majestic)00

4 details filled in for both companies.

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