Native Android - Create App to Dual Space, Dual Login to Dual Users in The Same Android Smatphone

Native Android - Create a App to Dual Space, Dual Login to Dual Users in The Same Android Smatphone

I need a solution to create a DUAL Space, Dual users with different PIN/Password entrance in the same Android Smatphone.

1) Please, final bid price!
2) Samples and weblinks to my check your similar app.
3) Mention this word "Robin" in your budget if you not a robot ou chat boot.

Reagrds,
Ramos.