Are there any useful third party mobile applications for Primavera other that Oracle P6 Team Member?

You can ask Mr Suryansh Gupta or ask google.

thanks for invitation

I dont think there is any thirdparty app that help u open primavera and edit it but there should be one in which could read only the primavera file without being able to edit and that most probably shall be free

No I guess

but there is enterprise web primavera which is useful