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Extra Thursday vs Open Notebook
A side-by-side comparison of pricing, ratings, features, pros and cons.
| Overview | |||
| Description | AI email assistant that drafts replies in your voice and tracks open loops and action items across threads. | An open source implementation of NotebookLM with more flexibility and features. | |
| Category | |||
| Developer | Extra Thursday | Open-notebook | |
| Verified Status | No | No | |
| Last Updated | Sep 2026 | Sep 2026 | |
| Pricing | |||
| Pricing Model | Freemium | Open Source | |
| Free Plan | No | Yes | |
| Free Trial | No | — | |
| Open Source | No | Yes | |
| Capabilities | |||
| API Access | No | — | |
| Features | • AI drafts matching the user's writing voice • Instant email search and noise triage • Open loop and action item tracking across threads • Direct Gmail integration • Context-aware, style-matched draft generation • Free tier to get started | — | |
| Tags | ai-email-assistantinbox-managementgmail-integrationproductivitydraft-generation | opennotebooksourceimplementationnotebooklmflexibility | |
| Trust and Engagement | |||
| Review Count | 0 | 0 | |
| Saves | 0 | 0 | |
| Views | 45 | 61 | |
| Quality Score | 62/100 | 54/100 | |
| Website Status | Online | Online | |
| Availability | |||
| Website | www.extrathursday.app | www.open-notebook.ai | |
| Social Links | 2 linked | 1 linked | |
| Screenshots | No | No | |
| Reviews | |||
| Pros | • Free to use | • Free to use | |
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