Alternative
A private alternative to SaneBox
Klar filters spam on your Mac, inside Apple Mail. No account, no cloud, nothing to hand over.
If you are weighing up SaneBox, here is how Klar differs and where each one is the better pick.
| Aspect | Klar | SaneBox |
|---|---|---|
| Runs on | Your Mac | SaneBox's servers |
| Who can read your mail | No one new. Your mail never leaves the device. | SaneBox analyzes headers in its cloud; some features fetch message bodies |
| Works with | Apple Mail, with any account: IMAP, Gmail, iCloud, Exchange | Any IMAP or Exchange account |
| Price | Free | From $4.99/month (2-year billing) |
Klar fits better when Confidentiality matters: sorting without cloud access, marketing via Klar Plus (paid)
The honest picks
- SaneBox
- Not primarily a spam filter: it sorts your inbox by importance, in the cloud. Pick it if your problem is too much legitimate mail and you are comfortable giving a service access to your mailbox.
- Klar
- Pick Klar if you read mail in Apple Mail and want a modern multilingual model that runs entirely on your Mac. No account, no cloud, nothing to hand over.
Product and price details from the vendors' public pages, July 2026: c-command.com, sanebox.com, support.google.com, learn.microsoft.com, libraesva.com, spamassassin.apache.org, rspamd.com, mailinblack.com. Klar is not affiliated with or endorsed by any vendor named here; names are used only to identify the products.
The on-device option
Free, private, in Apple Mail.
