What nav app to use

[Qayaq]

Hi. First time here.
I have a Raymarine C120 with radar. Nexus wind,speed and compass. And now a XB8000 AIS.
Oh and old furuno gps, Gps VHF AND SSB and St 4000 autopilot.
Got all these wired ok. NMEA 0183 all end up at the XB 8000 which outputs into the C120. All that works ok and the XBOX 8000 WiFi 's out to my Samsung tablet.
My question is what would be a suitable app to run on my tablet. I'm used to the raymarine gear as I've done 15k miles with one, also trust the navionics charts. Want the tablet to run backup to the C120 and be movable MFD.
Any body running similar gear got some pros and cons on apps?
Thanks for reading.
Simon