Side by side
Annotation Chrome Plugin Extension vs Concentration Chrome Extension
2 tools side by side, on the data we have on file for each.
Annotation Chrome Plugin Extension
Analytics · Free
Concentration Chrome Extension
Analytics · Free
| Annotation Chrome Plugin Extension | Concentration Chrome Extension | |
|---|---|---|
| Price | Free | Free |
| Free tier | Yes | Yes |
| Our score | 3.9 / 5 | 3.9 / 5 |
| Our line on it | Adds custom annotations to documents on Lexis360 and Sesame, using AI-based predictions to speed classification. | Blocks distracting sites, times your work sessions and tracks focus patterns over time. |
| Best for | LexisNexis users classifying documents on Lexis360 or Sesame | People building a personalized focus routine |
| Not for | Anyone outside the Lexis360 and Sesame applications | Anyone bothered by frequent notification reminders |
| Platforms | Chrome | Chrome |
| Category | Marketing and SEO | Marketing and SEO |
| Best described as | Analytics | Analytics |
| Last checked | 4 Oct 2026 | 5 Oct 2026 |
We have not written a verdict for this pairing
The table above is the data on each tool's own page, side by side. A written head-to-head goes further: it names a winner per use case and says who should stay where they are. Those are written by a reviewer, pair by pair, so this one may not have its verdict yet.
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