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Index vs Private Writing Assistant

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

Index compared with Private Writing Assistant
DetailIndex logo IndexPrivate Writing Assistant logo Private Writing Assistant
What it doesKeep work, personal life, and every project in its own space. Switch between them without closing tabs or losing your place. Spelling and grammar checks in 101 languages, run entirely on your device
StageNot given Not given
FoundedNot given Not given
Based inNot given Not given
Pricing modelFree Free
PricingNot given Not given
Key features
  • Spaces, each holding its own groups that open as Chrome tab groups
  • Favorites: up to eight pinned pages that stay with you in every space
  • Sleeping tabs that go out of sight and come back when clicked
  • Hundreds of themes
  • Rewind function keeping a week of changes on your computer
  • Export one JSON file to share with AI assistants like ChatGPT or Claude
  • Search any group, space or link from any page
  • Private by design with no account, server, or network requests
  • 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
What makes it different
  • Keeps a week of changes you can rewind through on your computer
  • Sleeping tabs preserve your place while keeping them out of sight
  • 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
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)20 no change since last checkNot checked yet no change since last check
Trust Flow (Majestic)00
Citation Flow (Majestic)90
Referring domains (Majestic)70

4 details filled in for both companies.

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