As well as the default events tracked by Paddle Analytics you can also track any number of custom events throughout your app. Simply use the track method:
+ (void)track:(NSString *)action properties:(NSDictionary *)properties;
This methods accepts an identifier for the action along with a dictionary of properties associated with the action. Take a look at the following example where we're tacking how many PDF Documents are exported from our example app:
NSDictionary *properties = @{@"documentType": @"pdf"};
[PaddleAnalyticsKit track:@"ExportDocument" properties:properties];