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SaneBox review: the triage-everything approach

ReviewThe Sieve Team6 min read

SaneBox re-sorts your whole inbox by priority, on any provider, from $9.49 a month. Whether it fits comes down to one question: do you want everything triaged, or just the junk gone?

Full disclosure up front: we make Sieve, so judge accordingly. Everything below about SaneBox sticks to its own public positioning.

What is SaneBox?

SaneBox's pitch, in its own words, is AI email management for any inbox: algorithms trained on your behavior sort less-important email out of your inbox into folders (the best known is SaneLater) so you can deal with it on your own schedule. Its feature list reaches past deferral, too. SaneBlackHole banishes mail from senders you never want to hear from again, and mail you don't get to can be archived or trashed automatically.

The tiers gate the features, which is the detail that matters when you compare prices: Snack unlocks two features, Lunch six, and Dinner all of them. The features named on its pricing page include SaneNews for newsletters, SaneNoReplies for tracking messages awaiting an answer, SaneDoNotDisturb for pausing the inbox, SaneReminders, and an Email Deep Clean for the backlog.

What SaneBox does well

  • The triage model is coherent. If you want every message ranked by importance rather than just the junk removed, behavior-trained folders are a sensible way to do it, and its feature list adds SaneBlackHole for the senders you want gone outright.
  • It positions itself as provider-agnostic. If you're on Outlook, Yahoo, or a custom IMAP setup, that alone may decide it: most Gmail-specific tools (ours included) can't help you.
  • It scales across accounts: per its pricing page, Lunch covers two email accounts and Dinner covers four, useful if you're triaging work and personal mail with one tool.
  • Its behavior-based sorting means less manual rule-writing than a filters-and-folders setup you build yourself.

SaneBox pricing

The spread is wide: SaneBox's entry tier sits between Sieve's two plans, and its full-featured tier costs more than twice Sieve's Pro. As of July 2026, its pricing page lists Snack at $9.49 a month or $65 a year (one email account, two features), Lunch at $15.99 a month or $109 a year (two accounts, six features), and Dinner at $42.99 a month or $319 a year (four accounts, all features). Two-year plans run $109, $179, and $529, and every plan starts with a 14-day free trial. Sieve keeps it to two: Basic at $10 a month or $102 a year, and Pro at $20 a month or $204 a year with a second inbox included.

Where Sieve fits differently

Sieve ships with its judgment built in and learns yours as you go. Every incoming message is classified server-side within seconds. Cold outreach goes under a Solicitor label, phishing under Malicious, and both are archived out of your inbox rather than deleted. When it gets one wrong, drag the message back; the correction is recorded automatically and future classifications improve. Reply to someone and Sieve treats them as a trusted sender from then on. And you can steer it in plain English: "I'm not interested in recruiter pitches."

SaneBox, by its own account, learns from your behavior: you train it by how you treat senders and folders, and what it builds is a set of folders you keep visiting. Sieve inverts that arrangement. The judgment comes preloaded, the output is a label in the Gmail you already use, and the rest of your mail stays exactly where it was. Your part is corrective, not curatorial. Sieve also treats security as part of the job: phishing gets its own Malicious label, and links are screened against Google Web Risk.

Mail from people you already know (your domain, trusted senders, anyone in a thread with you) is cleared by deterministic rules before any AI runs, so its contents are never read by the model. Sieve stores no message bodies (mostly metadata, plus the subject line of flagged mail, encrypted and deleted after 30 days), and nothing is used to train models. Google's security review is complete, and SOC 2 Type II is in progress. Read the Privacy Policy.

Sieve and SaneBox, side by side

The job it doesSieveFilters unwanted mail out of Gmail: cold outreach is labeled Solicitor, phishing is labeled Malicious, and both are archived out of your inbox.SaneBoxIn its own words: AI email management that sorts less-important email into folders for later, with SaneBlackHole for banishing senders and automatic archiving among its listed features.
How it adapts to youSieveLearns from you: drag a message back and the correction is recorded; reply to someone and they're trusted from then on; steer it in plain English.SaneBoxDescribes its algorithms as trained on your behavior: you teach it by how you treat mail and folders.
Email providersSieveGmail only, by design.SaneBoxPositions itself as working with any inbox.
PriceSieveFrom $10/month ($102/year); Pro at $20/month adds a second inbox. 7-day free trial.SaneBoxIts pricing page lists Snack $9.49/mo ($65/yr), Lunch $15.99/mo ($109/yr), Dinner $42.99/mo ($319/yr), with a 14-day trial, as of July 2026.

Statements about SaneBox reflect its own public positioning as of July 2026. Check sanebox.com for current features and pricing.

When SaneBox is the better choice

Pick SaneBox over Sieve if:

  • You're not on Gmail or Outlook. Sieve supports those two providers through their direct APIs. It does not support Yahoo or custom IMAP.
  • You want everything ranked, not just the junk removed. Sieve deliberately doesn't rearrange your mail: it removes cold outreach and phishing and leaves the rest alone.
  • You're triaging several accounts with one tool. Its Lunch and Dinner tiers cover two and four email accounts, per its pricing page; Sieve covers one inbox on Basic, or two on the $20 Pro plan.

Common questions

How much does SaneBox cost?
As of July 2026, its pricing page lists Snack at $9.49/month or $65/year (one account), Lunch at $15.99/month or $109/year (two accounts), and Dinner at $42.99/month or $319/year (four accounts), each with a 14-day free trial.
Does SaneBox work with Gmail?
SaneBox positions itself as working with any inbox. Sieve is narrower: it supports Gmail and Outlook and filters with each provider's native labels, categories, or folders.
Is SaneBox worth it?
It depends on the job. If you want behavior-trained triage of everything, across any provider, that's exactly what it sells. If you only want cold outreach and phishing gone from Gmail or Outlook, with everything else untouched, a filter like Sieve (from $10/month) is the narrower, more direct tool.
Do I need to migrate anything from SaneBox?
No. Sieve works with Gmail or Outlook as-is. Connect your account, and during onboarding Sieve asks for a one-sentence plain-English description of what you don't want to see; filtering starts from there. It uses provider-native labels, categories, or folders, never deletes classified mail, and you can disconnect and delete your Sieve data anytime.
What happens if Sieve gets it wrong?
Drag the message back to your inbox or remove the label. The correction is recorded automatically and future classifications improve. You can also add senders to your trusted list.
How much does Sieve cost?
From $10 a month. Basic is $10/month, Pro is $20/month and adds a second inbox (Gmail or Outlook), and annual billing takes 15% off either. Both start with a 7-day free trial, and you can cancel anytime.

SaneBox is a trademark of its respective owner. Gmail is a trademark of Google LLC; interface depictions are illustrative. Sieve, by Snowfish Technologies, is an independent product and is not affiliated with or endorsed by SaneBox or Google. Details about SaneBox are drawn from its own public positioning and may change. Verify on sanebox.com.