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PI Labs 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.

PI Labs compared with Private Writing Assistant
DetailPI Labs logo PI LabsPrivate Writing Assistant logo Private Writing Assistant
What it doesSmall browser tools that stay out of the way 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 modelFreemium Free
PricingBasic: $10/month (400 energy), Standard: $20/month (800 energy), Pro: $95/month (4,400 energy). Top up: $20 for 800 energy. Not given
Key features
  • Energy-based usage model
  • One Google account, no licence key
  • Cancel any time
  • 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
  • Built solo and shipped frequently
  • Small tools that stay out of the way
  • Energy-based pricing scales with usage
  • 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)7 −1 (down) since last checkNot checked yet no change since last check
Trust Flow (Majestic)30
Citation Flow (Majestic)160
Referring domains (Majestic)160

4 details filled in for both companies.

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