https://www.nivancontent.com/best-legal-apps-for-lawyers #4 https://www.goodreader.com/ https://www.fastcase.com/pricing-plans/ Now it seem not free anymore like many other app enter later phase of service. Data collection and organizing seem very useful and can be make profit from it. So try collect data about Road Safety or Trash issues for other use. This seem much more valuable than making some app that more likely already exist.
Some tribes of the programmer clan.