Citizenship exam prep with highlighted study points and topic tests

It shouldn’t cost this much same content is available in pdfs everywhere n many apps for free.. first paid 5£ for app n thn 8.99£ for the contents it was waste of money same contents are everywhere not a signgle differnce n others provide it for free!! I know website where people prepare n pass for much less effort thn reading n memories all this.
If you are charging people at least make it worth it add option to highlight main points n test for each topic. Otherwise stip charging people for stuff they are getting free everywhere.!