For some functionalities and generating reports you need credits. An overview:
Every time you run a keyword analysis using the Textmetrics Keyword Suggestion Tool credits are used. Each credit represents one keyword analysis.
Text Conversion Optimizer (TCO)
Running an analysis in the TCO costs credits from your credit balance.
Content Ranking Index (CRI)
Generating an CRI report costs credits from you credit balance.
Each new synonym analysis costs some credits (recalling previous analysis from the history list is free).
Within the functionalities you’ll find the current costs for your account.
The number of credits depends on your subscription. Credits are renewed each month. Your unused credits expire at the end of the month.
Learn how to manage your account: