Klar vs SmartInbox
What actually differs: where each filter runs, who gets to read your mail, and what it costs.
| Aspect | Klar | SmartInbox |
|---|---|---|
| Runs on | Your Mac | Your Mac plus the AI endpoint you configure |
| Who can read your mail | No one new during filtering. Classification stays on your device. | Local models keep processing on your Mac; a hosted endpoint receives the headers or full message you choose to send |
| Works with | Apple Mail, with any account: IMAP, Gmail, iCloud, Exchange | Apple Mail inbox messages on macOS 15.2 or later |
| Price | Free forever | $4.99 one-time; unlimited free trial with a fixed prompt |
Klar fits better when you want a bundled on-device model, no endpoint or prompt setup, and an actively maintained filter
The honest picks
- SmartInbox
- The closest match here. SmartInbox asks an OpenAI-compatible model if an Apple Mail message belongs in Junk. Pick it if you want to write the prompt and run your own local model. The developer says active work stopped because few people were interested.
- 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: loshadki.app. 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.
