Every profile has evidence behind it.

1. Establish the exact product

We verify the company, canonical URL, current product status, and whether an AI email capability has actually shipped. Roadmap features, discontinued tools, and name collisions do not qualify as current products.

2. Verify current facts

Provider support, features, automation boundaries, pricing, trials, privacy, security, and maintenance status come from current product pages, documentation, policies, changelogs, app stores, or source repositories. Vendor claims are attributed rather than repeated as independent conclusions.

3. Look beyond vendor marketing

We review independent publications, marketplaces, community discussion, and recent product-specific signals. Generic AI-email commentary is not presented as evidence about a named product. Sparse or conflicted evidence is labeled accordingly.

4. Build a claims ledger

Each dossier records which statements are safe to publish, which need qualification, and which are unsupported. This keeps profile copy tied to evidence and prevents marketing superlatives from becoming facts.

5. Publish the limitations

Every profile explains who the product is not for and names practical caveats around platforms, pricing, data handling, automation, maturity, or evidence quality.

6. Date and refresh the research

Every dossier carries a review date. Changeable facts are rechecked, and stale claims are corrected or removed rather than left to drift.

Conflicts of interest

This site is owned by Inbox Zero Inc., maker of Inbox Zero, which is included in the directory. Inbox Zero follows the same evidence rules and publishes its limitations like every other product. Sponsorships and submissions do not affect editorial conclusions. Read the full editorial policy →