New app with fonts and keyboards for traditional Indonesian scripts:

Aksara Nusantara

Supports the scripts Balinese, Batak, Javanese, Kawi, Lontara’ (Buginese), Makasar, Rejang, and Sundanese. Installing the fonts and keyboards lets you read and write text in most of these scripts in any text apps on your iPhone or iPad; in Kawi and Makasar only in apps that let you choose fonts.

https://itunes.apple.com/app/id6449843220

‎Aksara Nusantara

‎Read and write traditional Indonesian scripts in any text app! This app provides fonts and keyboards for traditional Indonesian scripts that can be installed for use in any text app on your iPhone or iPad. The supported scripts are Balinese, Batak, Javanese, Kawi, Lontara’ (Buginese), Makasar, Reja…

App Store