ILuvChrono - Chronograph with many operations
A highly functional health oriented watchface; provides fast access to the most interesting statistics.
Has a very useful flashlight mode with configurable intensity.
Tracks ~hourly step count and indicates performance at reaching hourly 250+ step goal.
Graphically displays phase of the moon, sunrise, sunset and solar noon.
Highly multi-lingual, makes use of many of the available features of the Fitbit platform.
More details may be found at https://gomezgames2b.com/ILuvCrono.php
This is a paid app. After a 120 hour free trial, it requires a one-time payment of $2.97 to keep using it.
Try Astrolabe too! at https://gallery.fitbit.com/details/ee1197bb-24c5-43d0-8d68-3172ff819140