Campaigns
Sending to a long contact list from several WhatsApp accounts?
WhatsApp Bulk Message Sender for Multiple Accounts
Send WhatsApp bulk messages to your lead list from the Casii desktop app for Windows. Pick the customers and write the message; multiple WhatsApp accounts take turns sending from one queue with random intervals and human-like pacing. AI rewrites your copy into varied versions, and you see replies in real time.
Set up in four steps
Pick instances, pick recipients, edit the message, set delivery — one campaign in four steps, each step guided by the wizard.
Sending pace you set
Set a random interval range between messages, a pause after every N messages and a daily sending window based on the time zone of each account’s proxy. Every number is checked on WhatsApp before sending, and this check can’t be turned off; chats with new contacts can be cleaned up after sending.
AI rewrites your copy
AI turns one message into several natural variants, so accounts sending in parallel don’t all send the same text; incoming and outgoing messages can be auto-translated across 72 languages.
See who replied, in real time
A 5-minute reply-tracking window surfaces replies live; when the result is unknown after timeout it’s marked failed rather than resent — no false hope.
FAQ
Your WhatsApp accounts run on your own computer
WhatsApp login state stays on your computer, and messages are sent from your computer. Desktop app for Windows with automatic updates; macOS coming soon.