Sundroid is an Android app that calculates sunrise, sunset, moonrise and moonset times for any location.

This app was originally published on Google Play in 2010 as a paid app with a free version. It was necessary to remove it from Google Play in 2015 for a variety of reasons. In 2020 I rebuilt the app and republished it as a free and open source project.

Alarms and notifications, originally included in Sundroid Pro, cannot be restored. Limits on background tasks, changes to methods of waking the screen, and a block on receiving time, date and time zone changes will prevent alarms and notifications firing at the right time.

• Sunrise and sunset times
• Length of day and solar transit
• Moonrise and moonset times
• Lunar phase and illumination
• Planet rise and set times
• Planet transit and risen time
• Sun, moon and planet tracker with map view
• Monthly calendars with list and grid views
• Yearly aphelion, perihelion, eclipse, solstice and equinox dates
• View any date and any location
• Locate by GPS, map, and name search
• Save locations
• Four widgets

Sundroid was originally built in 2010 and maintained a number of major compromises until recently, in order to keep package sizes very small for internal installation as required by alarms and widgets, and to support the oldest SDK. It has now been almost completely rebuilt but is still being improved.

• Java 8
• Ant scripts replaced with Gradle
• Standardised project structure
• Dropped OpenGL1 and Maps v1 support
• Bumped minimum SDK from 4 to 21
• Migrated to Kotlin
• Migrated to AndroidX
• Marshmallow permissions requests
• Material design including nav drawer
• Dialogs refactored to fragments
• Most deprecated API usage refactored

• Restore landscape support
• Restore tablet support
• Extract strings to resources
• Open source translation
• Extract more styles to resources
• Lint

Copyright 2010-2021 Dave Morrissey Licensed under GNU Affero General Public License v3.0. Portions licensed under Apache License 2.0.