Is Grammarly: AI Writing and Grammar Checker App Safe? — Extension Safety Profile
Quick verdict: Grammarly: AI Writing and Grammar Checker App earns a safety grade B, 62.7 out of 100, based on 5 of 5 dimensions.
62.7/100
Grade B · 5 of 5 checks
What we found
Automated safety profile from public signals (the extension's manifest & permissions, store listing, publisher, privacy policy). A full review hasn't been published yet.
What this safety grade means
Grammarly: AI Writing and Grammar Checker App earns a safety grade of B (62.7/100), measured across 5 of 5 dimensions. Its strongest area is Maintenance & Ownership (100%). The weakest is Permissions & Access (37%) — what holds its grade back the most.
On the public records we can check, Grammarly: AI Writing and Grammar Checker App looks broadly trustworthy. 501,662 active users/installs reported on the store. Store rating 4.1/5 from 3,210 user ratings. Last updated on the store 2026-04-24. This is an automated profile, not a hands-on review — so treat the grade as a starting point: open Grammarly: AI Writing and Grammar Checker App's own store listing and privacy policy before installing, and weigh it against the other grammar & writing extensions we track below.
Safety Signals
Based on 5 of 5 safety dimensions
| Dimension | Score | Bar | Source |
|---|---|---|---|
| Publisher & Identity | 60% · 4.8/8 pts | Automated signals | |
| Permissions & Access | 37% · 6.3/16.7 pts | Automated signals | |
| Data & Privacy | 50% · 2/4 pts | Automated signals | |
| Maintenance & Ownership | 100% · 7.5/7.5 pts | Automated signals | |
| Community Reputation | 84% · 8.4/10 pts | Automated signals |
Who's Behind Grammarly: AI Writing and Grammar Checker App?
- Publisher Grammarly
Public records identify the publisher, but no individual founders or a separate registered company are named — which is what holds the Publisher & Identity score back. Less public information about who operates an extension means less you can verify about their long-term accountability.
How it compares
Among the 345 browser extensions we track, Grammarly: AI Writing and Grammar Checker App scores higher on safety than 4% of them.
Computed from our own database of assessed browser extensions — updated as we track more.
Evidence on File (8)
Grammarly: AI Writing and Grammar Checker App FAQ
- Is Grammarly: AI Writing and Grammar Checker App safe?
- Grammarly: AI Writing and Grammar Checker App earns a safety grade of B (62.7/100) on our evidence-based assessment, based on 5 of 5 safety dimensions we could verify from public records. This is an automated profile built from public records, not a hands-on review.
- Who is behind Grammarly: AI Writing and Grammar Checker App?
- Grammarly: AI Writing and Grammar Checker App is operated by Grammarly.
Alternatives we track
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