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Actionbook
✓ Third-Party VerifiedActionbook is an AI agent in your browser
Actionbook vs Sidespace
Actionbook and Sidespace are both listed under the same category. Prices are as shown on each vendor's pricing page; the check date is in the table. On listed entry price, Sidespace starts lower (from $4.90/mo).
 Actionbook |  Sidespace | |
|---|---|---|
| Pricing | Freemium | Freemium |
| Entry price | from $20/mo | from $4.90/mo |
| Prices on pricing page | $20/mo | $4.90/mo · $8.90/mo |
| AurionX grade | E | — |
| Verified | ✓ Yes | Not yet |
| Key features | — | Side Copilot on X Side Copilot on X, Daily Wrap Up, Restore Closed Windows, Research Topic, Select Context, Extract Content |
| Platforms | web | Chrome Extension |
| Founded | 2026 | — |
| Last checked | 2026-10-02 | 2026-10-02 |