Windows
For Windows 10/11. Download and follow the installer.
ClaudeU Desktop
Download Desktop.
Open locally. Try first. Sign in and recharge when you need to continue.
macOS
For macOS. Open the package and allow it from the system prompt.
Trusted download
Check signing, notarization, and SHA256 before install.
ClaudeU download service shows file size, release time, and SHA256 for release packages. Stop installation and contact support if signing, notarization, or digest checks do not match.
View download list and SHA256Windows code-signing certificate
Windows installers are signed so the publisher can be reviewed in system signature details before installation.
macOS notarization
macOS packages follow Apple notarization checks and should pass the system security prompt on first open.
SHA256 checksum
The download service displays SHA256 per release package; do not install when a local digest differs.
The download page keeps only what happens after install.
Install
Choose the system package and install locally.
Open
Start from ClaudeU Desktop.
Continue
Return to the web when balance is low.
New device or low balance: use these two entries.
Authorization lives on login. Recharge lives on pricing. The web handles account work, not daily work.