Install Ultra WhatsApp

Windows

1. Download UltraWhatsApp-Setup.exe from the download page. (UltraWhatsApp-Portable.exe runs without installing.)
2. If Windows shows Windows protected your PC, click More info, then Run anyway. The installer is new and not yet code-signed.
3. Finish the installer. When you minimise the window, Ultra WhatsApp keeps running in the system tray so campaigns continue.

macOS

1. Download arm64 for Apple Silicon or x64 for Intel.
2. Open the .dmg and drag Ultra WhatsApp into Applications.
3. First launch: right-click the app, choose Open, then Open. If macOS still refuses, go to System Settings, Privacy & Security, and click Open Anyway.

Android

1. On the phone, download UltraWhatsApp-<version>.apk from the download page.
2. Open the file and allow installs from this source when Android asks.
3. Open Ultra WhatsApp. The tabs are Home, Campaigns, Contacts, Templates and More. Activate under More with the same key (one key covers the devices its tier allows, in any mix).

A phone cannot receive Meta's webhook itself; the Android app shows replies and statuses through an optional inbox relay (More, Settings).

iPhone and iPad

The iOS app is coming to the App Store. Until then, use the Windows or Android app.