Get Kaptcho.
Subscribe on the Viremail Store. The Store then shows a Download button for your computer. The first time you open the app, it asks you to sign in with Viremail.
System requirements
macOS
macOS 11 or later. Intel and Apple silicon, in one download.
Windows
Windows 10 or 11, 64-bit (x64).
Linux
64-bit (x64) with glibc 2.31 or later, such as Ubuntu 20.04 and newer.
Opening an app that is not signed yet
Our builds are not code-signed yet. Apple and Windows developer accounts are on the way, so signing is coming soon. Until then, your computer asks you to confirm once. It takes a few clicks.
Kaptcho is not code-signed yet, so macOS asks you to confirm before it opens it. Apple developer signing is coming soon. Until then:
- Open the
.dmgand drag Kaptcho into Applications. - In Applications, right-click (or Control-click) Kaptcho and choose Open, then Open again.
- Or open System Settings, then Privacy & Security, and choose Open Anyway next to the Kaptcho message.
- If macOS says the app is damaged, run this in Terminal, then open it again:
xattr -dr com.apple.quarantine /Applications/Kaptcho.app
Still no luck? See the full guide.
After you install
- Open Kaptcho. It asks you to sign in with Viremail.
- Your browser opens. Sign in and approve Kaptcho.
- Come back to the app and start a project.
New to Kaptcho?
The help centre walks you through installing, signing in and your first project.