Chama no Whats is a free Chrome extension that allows you to contact people on WhatsApp without adding them to your phone's contacts. With this extension, you can make the first contact with your WhatsApp Web without the need to add the contact to your phone.

This extension does not register the contact in your WhatsApp account and is not associated with any other functions. To use Chama no Whats, simply follow these steps:

1. Install the extension on your Chrome internet browser.

2. Click on the green "Chama no Whats" icon located on the right side of the browser's address bar.

3. Write a contact message if desired.

4. Enter a number and click on "Chamar Contato" (Call Contact).

Additionally, you can use this app as a shortcut to WhatsApp by clicking on the WhatsApp icon within Chama no Whats.

Please note that the opening time of each tab may vary depending on the number of contacts, messages, and media in your WhatsApp. To expedite the opening of the next tab with a new contact, simply close the previously opened tab and keep your smartphone with WhatsApp always open and connected to the internet.