Klar vs SpamBarrier
What actually differs: where each filter runs, who gets to read your mail, and what it costs.
| Aspect | Klar | SpamBarrier |
|---|---|---|
| Runs on | Your Mac | SpamBarrier's cloud, hosted in Germany |
| Who can read your mail | No one new during filtering. Classification stays on your device. | Filters mail before delivery using local AI models, entirely on German infrastructure |
| Works with | Apple Mail, with any account: IMAP, Gmail, iCloud, Exchange | Any domain; point your MX records at SpamBarrier |
| Price | Free forever | Free tier available; no user or traffic limit stated; paid tiers on request |
Klar fits better when you want detection to run on your own device rather than a third party's cloud, even a German one
The honest picks
- SpamBarrier
- A German-hosted cloud gateway. Point your domain's MX records at SpamBarrier and it filters spam and viruses before delivery, using what it calls local AI models. It highlights GDPR compliance and a fair.digital certification. The mail still passes through a third party's servers, in Germany rather than on your device. Fine if that distinction doesn't matter to you.
- 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 and August 2026: spambarrier.de. Klar is not affiliated with any vendor named here. No vendor endorses Klar. Product names only identify the tools.
Reclaim your inbox
Spam filter for Apple Mail. Free on the App Store.
