Excellent map

Living in Tokyo and I use this app daily. It does the job and is worth the money (though its a bit expensive -- but coverage of surrounding areas makes it worth the cost). The UI is fairly intuitive and I the look of information displayed is quite elegant (especially considering the complexity of Tokyos ICT system).. Not that there isnt room for improvement (trip routing/planning for one). If you plan to spend more than a few days in Tokyo, get it.

AmazingColossalMan about Tokyo Rail Map+ Yokohama, Saitama, Chiba, v5.2.1