SaneBox is a server-side AI email filtering service that cleans up any inbox by analyzing message headers only, working on top of your existing email account rather than replacing it with a new client. It is aimed at anyone overwhelmed by email who wants a calmer inbox without switching email providers or apps. SaneBox has no permanent free tier: it is a paid subscription with plans starting around $5.42/month on the Yearly Snack plan (Monthly Snack, Yearly Lunch and Dinner tiers cost more for higher usage), backed by a 14-day free trial to test it first.
Who builds it
SaneBox is built as a dedicated email-triage product rather than a full email client or productivity suite. Because it layers on top of whatever inbox and client you already use — Gmail, Outlook or another provider — it does not require migrating your email history anywhere new to start filtering.
Core features
- Header-only analysis to determine what is important, rather than reading full message content by default.
- Works on top of your existing email account, so there is no need to switch email providers or clients.
- Fast setup, with SaneBox describing a clean, distraction-free inbox achievable in under five minutes.
- Tiered plans (Snack, Lunch, Dinner) sized for different usage levels and budgets.
- 14-day free trial before any subscription payment is required.
Who it is for
SaneBox fits people who like their current email client and provider and simply want AI-driven filtering layered on top, rather than adopting an entirely new inbox app. It particularly suits privacy-conscious users who prefer a tool that limits itself to header analysis over one that processes full email bodies by default.
Data and privacy
SaneBox states that it only analyzes headers to determine what is important, and that when optional features do retrieve the body of an email, that content is never stored. This header-first design is a meaningful privacy differentiator compared with AI email tools that process complete message content by default. SaneBox does not publish a specific EU-hosting guarantee on its security page, so DACH teams with strict DSGVO data-residency requirements should confirm hosting details and any data processing agreement directly with SaneBox before rollout.
Bottom line
SaneBox is best suited to people who want AI email triage without switching email clients or providers, and who value a header-only approach to privacy over full-content AI processing. The lack of a permanently free tier means budgeting for a subscription from the start, though the 14-day trial gives a low-risk way to evaluate it first.