There is also a official HP Prime calculator.[0] Bit pricy but it somewhat easier to navigate than HP-48. Though it has limited RPN support... [0] https://pla

There is also a official HP Prime calculator.[0] Bit pricy but it somewhat easier to navigate than HP-48. Though it has limited RPN support... [0] https://play.google.com/store/apps/details?id=com.hp.primecalculator https://play.google.com/store/apps/details?id=com.hp.primeca...