There have been some recent updates to JyotishTools Android apps.
The Atlas now allows All Continents to be selected. This will automatically search all continents and countries for a location. For instance if you enter Paris you will get a list of locations with Paris as it’s name or part of it’s name regardless of country. This add a little more to the search time but with most devices imperceivable. Also available on Tropical Skies.
JyotishTools now makes an Ephemeris available with daily, weekly, monthly and yearly displays. The listing can be saved as a text.
There have been some bug fixes some involving memory issues so there should be no more problems with charts opening up. Let me know if you continue seeing those problems.