SaneBox is excellent at filtering, but it does not draft, rank, or chase. Here are five alternatives for people who want the AI to do more than move mail into folders.
SaneBox is the best lightweight filter in email: it learns what matters and moves the rest out of the way, on any IMAP inbox. What it does not do is draft replies, rank a single priority list, or chase follow-ups. If you want an agent that actually handles the work after filtering, Pidgy is the strongest alternative: it ranks your inbox across Outlook and Gmail, drafts in your voice, and chases stalled threads. For drafting plus meeting notes, Fyxer. For bulk cleanup, Clean Email.
SaneBox has real strengths. The common reasons people go looking for an alternative:
SaneBox moves low-priority mail aside, but you still write every reply yourself. There is no generative drafting.
It sorts into smart folders rather than handing you the few items that need you today, ranked by who is waiting.
SaneBox tracks no-replies, but it does not turn email into tasks, build a project view, or queue follow-ups for you to send.
Billing is per inbox, so costs grow if you run several accounts.
Four questions that decide whether a tool actually sticks.
Layering onto Outlook and Gmail beats replacing your client or locking you to one ecosystem.
Labelling tidies the inbox. Ranking tells you the few things that actually need you today.
Drafting is table stakes. Chasing the threads that go quiet is what stops things slipping.
Watch for annual lock-in, per-seat costs, credit meters and overage fees in the fine print.
Ranked by how much work they take off your plate, with honest notes on where each falls short.
Reads every email in Outlook and Gmail, ranks the few that need you, drafts in your voice, and chases stalled follow-ups on its own. Groups email, docs and tasks into projects, with a built-in assistant (voice coming soon) and one Inbox Health score. EU-hosted, never trains on your mail, never sends without your click.
Trade-off: no in-meeting notetaker, and access is invite-only while it rolls out.
A server-side overlay for Gmail and Outlook that sorts your inbox into categories, drafts replies in your voice, and takes meeting notes from your calendar. From about $22.50 per user per month on annual billing.
Trade-off: annual billing with possible volume overage fees, and a fixed category logic you cannot tune.
Built by ex-Google Inbox engineers, it makes AI search, summaries, drafting and categorisation the default state of the inbox. Free tier; paid from about $14 per month.
Trade-off: Gmail only, no Outlook or IMAP, and it replaces your client.
A rule-based inbox cleaner that bulk-sorts, archives and unsubscribes across any provider, and pairs well with a separate AI tool. Affordable subscription.
Trade-off: it is rule-based decluttering, not generative AI, so it does not draft or chase.
Readdle's email client for Gmail, Outlook, iCloud and IMAP, with AI Compose, a My Writing Style feature and a Smart Inbox. Strong free tier; Premium from about $5.99 per month.
Trade-off: it replaces your client, stores credentials on Readdle's servers, and reviewers find the AI lighter than dedicated tools.
| Tool | Best for | Works in |
|---|---|---|
| Pidgy by Alkmist | Closing the loop across Outlook + Gmail | Outlook + Gmail |
| Fyxer | Drafts plus meeting notes | Gmail + Outlook (overlay) |
| Shortwave | AI-native Gmail | Gmail only |
| Clean Email | Bulk inbox cleanup | Any IMAP |
| Spark Mail | Affordable cross-platform client | Gmail, Outlook, IMAP |
The one built to close the loop, across Outlook and Gmail.
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