Unzip the download and drag LocalInbox to Applications. The first time you open it, macOS says it can't verify the app: click Done, open System Settings › Privacy & Security, click Open Anyway next to “LocalInbox was blocked” and confirm. You do this once; updates install from inside the app.
A Mac with Apple silicon and macOS 15 or later. The on-device AI features need macOS 26 with Apple Intelligence.
Steps
- Download LocalInbox from the website.
- Unzip the download and drag LocalInbox to your Applications folder.
- Open LocalInbox. macOS says it can't verify the app: click Done.
- Open System Settings › Privacy & Security. Click Open Anyway next to “LocalInbox was blocked”, and confirm.
- LocalInbox opens with a short welcome. Add your first account.
Troubleshooting
Why does macOS block LocalInbox?
LocalInbox isn't notarized by Apple yet, so macOS asks you to approve it the first time. Updates are signed with LocalInbox's release key and checked before they're installed.
Questions
Is there a free trial?
Yes. LocalInbox is free for 7 days with every feature. No sign-up and no card. When the trial ends, enter a licence key; nothing is deleted.
How do I update LocalInbox?
LocalInbox checks for updates once a day (Settings › General) or when you choose Check for Updates. Install and Relaunch verifies the update's signature before installing it.
How do I move my licence to a new Mac?
A licence works on up to three Macs. To free a place, choose Deactivate This Mac in Settings › Licence on the old Mac. For a Gumroad key, write to support and we'll reset the count.