Education
Bring AI detection, citation checks, live essay feedback, and writing replays directly into Google Docs and your workflow.
Compare extensions
Tools
Pangram Labs provides accurate detection of AI-written text. Highlight text, right click, and select 'Check for AI Content.'
Audience & ratings
Store users
≈500K
30K
Ratings
What stands out
GPTZero: AI Detection & Writing Replay reports the larger audience. These are store counts, including rounded estimates. The rating difference is 0.05 points across 731 and 22 ratings.
Different categories. Category overlap does not establish that two products serve the same workflow.
Product & publisher
Publisher
Gptzero Inc.
Pangram Labs
Publisher portfolio
1 listing
1 listing
Listing status
Active
Active
Manifest
Version 3
Version 3
Package size
12.57MiB
1.62MiB
Permissions & access
Requested capabilities describe access, not developer intent or a safety verdict.
API permissions
6 requested
- cookies
- storage
- contextMenus
- tabs
- alarms
- scripting
8 requested
- activeTab
- contextMenus
- storage
- scripting
- clipboardRead
- webRequest
- sidePanel
- webNavigation
Website patterns
9 recorded
- http://localhost/*
- https://*.gptzero.me/*
- https://*.gptzero-staging.com/*
- https://*.taile98dc.ts.net/*
- https://*.growthbook.io/*
- https://docs.google.com/*
- https://classroom.google.com/*
- https://assignments.google.com/*
- https://chatgpt.com/*
1 recorded
- <all_urls>
Releases
Explore the release history
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Create your free accountEvidence behind this comparison
Both listings observed 2 Oct 2026.
Store users and ratings are observations, not revenue or lifetime installs. A larger audience or a higher score does not establish product quality.
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GPTZero: AI Detection & Writing ReplayEducation
Pangram AI DetectionTools