Private Writing Assistant vs Hotel Ninja

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 Hotel Ninja
Detail	Private Writing Assistant	Hotel Ninja
What it does	Spelling and grammar checks in 101 languages, run entirely on your device	Free Chrome extension that compares hotel prices across booking sites with final checkout prices
Stage	Not given	Not given
Founded	Not given	Not given
Based in	Not given	ES
Pricing model	Free	Free
Pricing	Not given	Not given
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	Same-room price comparison across booking sites Matches exact room type and guest configuration including children's ages Compares seven booking sites: Booking.com, Expedia, Hotels.com, Agoda, Trip.com, Travelocity and Orbitz
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	Works directly on the booking page you're already on without starting a new search Completely free with no account, subscription or data collection requirements Rated 5.0 stars on the Chrome Web Store
Free plan	Not given	Not given
Open source	Not given	Not given
Platforms	Not given	Not given
Public API	Not given	Not given
Community votes	0	0
DR (Domain Rating by Ahrefs)	Not checked yet no change since last check	3 no change since last check
Trust Flow (Majestic)	0	1
Citation Flow (Majestic)	0	11
Referring domains (Majestic)	0	16

4 details filled in for both companies.

More alternatives to Private Writing Assistant More alternatives to Hotel Ninja