Crew rest in the tropopause...
ZzTrop computes rest periods based on several patterns for both cockpit and cabin crew. Do not hesitate to submit your own specific pattern if none suits your needs.
If you encounter any software crash, or technical problem, send me an email with as much details as possible.
ZzTrop is Free and open source software.
- bug fixed : app could crash at startup on some devices. If you still have issue, please uninstall current or previous version of ZzTrop and reinstall the app