Try this instead:
// Get todays date to set the monthly subscription expiration date
NSDate *currentDate = [NSDate date];
NSLog(@"Current Date = %@", currentDate);
NSDateComponents *dateComponents = [NSDateComponents new];
dateComponents.month = 1;
NSDate *currentDatePlus1Month = [[NSCalendar currentCalendar] dateByAddingComponents:dateComponents toDate:currentDate options:0];
NSLog(@"Date = %@", currentDatePlus1Month);