The number of strings is the metric we use to charge a user (if needed) for a subscription. The number of strings in your account is the sum of the terms and translations in all the projects hosted on your account.
Only the strings added to the projects hosted on your account are counted against your string limit. If you are contributing to a project hosted on another account, the strings you add to that project are counted against the limit of that project's owner.
Automatic Translation Characters
The Automatic Translation feature uses the Google/Microsoft API (depending on your preference) for machine translation. Since the Google/Microsoft APIs are not free to use, we need to charge for the Automatic Translation feature.
Note that AT characters cannot be shared between accounts. If you purchase an AT characters package, those characters can be used only from your account.