AI email assistants , by SaneBox, Inc. , since 2011
SaneBox
Email filtering service that auto-sorts and prioritizes any inbox without switching clients
- WEB
What SaneBox does
SaneBox works in the background over IMAP with any email provider (Gmail, Outlook, Yahoo, iCloud, etc.) and any client, using AI-trained folders like SaneLater and SaneBlackHole to move low-priority mail out of the inbox automatically. It is a pure triage/filtering layer, it does not draft or write emails.
What you get: SaneLater smart folder, SaneBlackHole permanent sender ban, SaneReminders follow-ups, SaneAttachments cloud offload, Works with any IMAP provider, Daily digest email, Snooze / defer messages.
Typical jobs: stop unwanted emails without unsubscribing; declutter gmail or outlook inbox automatically; email filtering tool that works with any provider; reduce inbox clutter without switching email client.
Worth knowing: Pure triage/filtering, has no AI drafting or reply-writing feature, unlike most other tools in this list.
What users complain about: A user described the filtering as 'a little heavy handed, pushing most emails into my SaneBox,' requiring regular manual checks for miscategorized mail. (Capterra reviews)
Pricing and plan limits
Verified August 2026| Plan | Monthly | Annual (per mo) | Limits |
|---|---|---|---|
| Snack | $7 | n/a | 1 email account, 2 SaneBox folders |
| Lunch | $12 | n/a | 2 email accounts, 6 folders |
| Dinner | $36 | n/a | 4 email accounts, all folder types |
Where it wins
- Works with literally any email provider and any client via IMAP, no migration needed
- Very mature, stable product (running since 2011) with a large support knowledge base
- SaneBlackHole permanently kills unwanted senders instead of just filtering once
- 14-day free trial on every plan
- Referral program gives free months / credits
Where it falls short
- Does not draft, summarize, or write any email content, filtering only
- Filtering can be over-aggressive, pushing legitimate mail into SaneBox folders
- Not cheap for what is essentially a rules engine ($7-36/month per account tier)
- Limited custom folder creation compared to newer AI tools
- No native desktop or mobile app of its own, it's a backend service you configure on the web
How we scored it
Full methodology| Criterion | Weight | Score | Contribution |
|---|---|---|---|
| Capability | 30% | 6.5 | 1.95 |
| Value for money | 25% | 6.0 | 1.50 |
| Ease of use | 15% | 7.5 | 1.13 |
| Maturity | 15% | 9.0 | 1.35 |
| Support & docs | 10% | 7.5 | 0.75 |
| Momentum | 5% | 5.0 | 0.25 |
| Weighted total | 100% | 6.9 | 6.90 |
Alternatives to SaneBox
Chosen by editors, not sponsors-
MailmeteorFreemiumHas a free tier
-
Spark MailFreemiumHas a free tier
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MissivePaidOffers an API
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MailMaestroFreemiumHas a free tier
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