Sergio I used this app since its beginning and it is not cost-effective for the users, because the developers are not consistent with every release and tend to improvise with the upgrades. Once, the app was removed by developers from Play Store for trivial reasons. It is a good project, but with a limited support for a relatively high cost app. Xelatex and Xetex does not work in Android 4.0.* and below.
Ruined Internal PDF viewer is awful and the developer turned off support for external viewers. Consequently, this app is all but unusable.
table of contents in beamer table of contents in beamer is not being updated upon compilation.
does not run on android 7.0.
* Support EXTERNAL SD card in Android 5.0: use button "Grant storage permission" on the action panel, pick the external SD card folder to grant the app access to it. Note that this is only applicable on Android 5.0 Lollipop; 4.4.x Kitkat users have no choice but only compile files on INTERNAL sdcard.
* Make the action panel bigger for 720dp screens