Step 1: Login to Circleboom Twitter
Log in with your Circleboom account. If you don't have one yet, you can create it using the login page.
Once you have a Circleboom account, enter your credentials and click on the blue
login button. When you will login your Circleboom Twitter account, you will be asked to connect your Twitter account and the authentication process goes through Twitter’s authorization dialog, and the app will be automatically added to your Twitter account.
Step 2: Head over to the upgrade page, either use this link or use the menu upper right corner of the page.
Step 3: Select one of Pro, Multi, Business or Corporate monthly subscription plans or the annual plans which are up to 60% OFF)
Step 4: Click on the button
Subscribe Now. This immediately opens Stripe's payment page for you to enter your credit card.
Step 5: Once the payment goes through Stripe's connect service, you'll be displayed a Thank you page and a link to start using your shiny new Circleboom plan.