Re: That explains...
Obviously, this will do Capita's battered reputation no favours.
However, if you're talking of the SIMS Parent App, it is actually a good piece of software that provides almost real-time access for parents to attainment, progress, conduct, attendance, homework, timetables and more. Clearly, your experience was not a very good one, but I suspect this was down to inappropriate configuration, either of the underlying SIMS system or of the Parent App coupling. This requires considerable expertise and knowledge if parents are to get a good experience - the software certainly does not "just work" out of the box.
But this is still not good news.