To convert a Trial account to the LifeTime free account with unlimited users please follow the below given steps:

  1. Login to the Admin account from
  2. Goto Billing
  3. Just below the plan details you will find a box with title "Convert to LifeTime Free Account"
  4. Click on the "Change Plan" link given under the box (as mentioned in the step 3).

Now you can enjoy the free account for life.