AI-powered email triage that filters and folders the noise without changing your email client.
SaneBox is an email-triage service that runs on top of any existing email account — Gmail, Microsoft 365, iCloud, Yahoo, FastMail, generic IMAP — without changing your email client. The premise: most professional inboxes are 80 per cent noise (newsletters, automated notifications, low-priority threads) and 20 per cent signal (real correspondence). SaneBox uses your historical interaction patterns to predict importance, then files the noise into folders (SaneLater, SaneNews, SaneBulk) so the inbox stays focused on what actually needs you. It is not a new client; it is a server-side filter that works with whatever client you already use.
Connect SaneBox via OAuth (Google, Microsoft) or IMAP credentials. SaneBox analyses sending patterns, your responses, frequency and time-of-day to build an importance model — usually 4–7 days to settle. Unimportant mail moves to SaneLater for daily review. Newsletters land in SaneNews. Bulk mail goes to SaneBulk. Trained mail comes through to the main inbox. Add-ons unlock more behaviour: SaneBlackHole disappears senders, SaneNoReplies tracks unanswered emails you sent, SaneReminders pings cold threads, SaneAttachments saves files to Dropbox or Drive, SaneSnooze hides messages. Train by dragging between folders; the model adapts within days.
SaneBox prices on email accounts and feature count rather than mailbox volume. Annual plans: Snack ($7/month, 1 account, 2 features), Lunch ($12/month, 2 accounts, 6 features), Dinner ($25/month, 4 accounts, all features). Monthly billing is roughly 30 per cent more. Versus a free Gmail filter, the price asks something real — the value proposition rests on whether the time saved on inbox triage exceeds $7–$25/month at your hourly rate. For most working professionals it does, but the maths is not automatic. There is no permanent free plan, just a 14-day trial which is enough to feel the benefit.
| Tool | Pricing | Strengths | Weaknesses |
|---|---|---|---|
| SaneBox | From $7/mo | Works with any client, server-side | Not free |
| Gmail filters | Free | Native, no extra cost | Manual rule-building |
| Superhuman | $30/mo | Speed, keyboard-driven | New client to learn |
| Hey | $99/year | Imbox concept, tracker blocking | Locked to Hey infrastructure |
| Spark | Free–$8/mo | Smart inbox, free tier | iOS/Mac-first |
Buy if: your inbox runs to hundreds of messages a day and triage eats real working hours; you want to keep your existing email client (Outlook, Apple Mail, Gmail web, Spark, mobile native) and just add intelligence; you have tried Gmail filters and they are too brittle for the patterns you actually deal with.
Skip if: your inbox is light enough that Gmail's built-in tabs and labels handle it; you are willing to switch clients to Superhuman, Hey or Spark for the embedded experience; you are uncomfortable granting a third-party service IMAP or OAuth access to your mail.
14-day free trial, no card required. Annual plans from $7/month, works with Gmail, Microsoft 365, iCloud, Yahoo, FastMail and generic IMAP.
Founders managing inboxes with 200+ daily messages use SaneBox to separate investor updates, newsletters, and admin mail from urgent client and team communication. SaneBox learns which senders matter most, surfacing priority messages first.
Account managers juggle client requests, Slack notifications, and project updates. SaneBox sorts promotional and transactional mail into folders, keeping the inbox focused on actionable client work and internal coordination.
Support staff and RevOps leads receive confirmation emails, system alerts, and customer messages in high volume. SaneBox auto-folders receipts and alerts, ensuring team members see customer-facing tickets first and reduce response time.
Quarterly access to product leadership.
Bonus credits redeemable on partner tooling.
We re-verify the offer every quarter so it never goes stale.
Hit the button on this page — opens the partner site in a new tab.
Check your investor or accelerator benefits portal for the SaneBox partner code. Y Combinator, Sequoia, and most Tier 1 VCs have codes available.
Renewals stay at the same rate — verified by us, not the vendor.
| Feature | SaneBox |
|---|---|
| Free trial | 14 days |
| Cheapest paid plan | $0/mo |
| Annual discount | Up to 25% |
| Refund window | 30 days |
| Setup time | < 1 hour |
| Best for | Founders |
“Worth it for busy professionals managing multiple inboxes”
“The SaneBlackHole is worth the subscription alone”
“Inbox zero became sustainable instead of aspirational”
