Yes
it is! However, there is no tutorial yet or API like
Tango C-API to easily use it in another application. It is more a demo of RTAB-Map on mobile. The options are more limited than the Desktop version, but at least the saved databases from Tango can be opened in the Desktop application to replay/reconstruct the map with different parameters and to export with more options.
Tip: You can download
ASTRO File Manager for convenience to exchange files from Tango to a Google Drive for example.
cheers,
Mathieu