Check out the repo and build — no other setup is required.

The app reads NASA's APOD endpoint, which needs no API key. It replaced api.nasa.gov/planetary/apod in Sep 2026; see nasa/apod-api.

External libraries used in this app are listed below. Core Android / AndroidX libraries are excluded from this list.

• OkHttp & Gson (for networking)
• Zoomage (for image zooming)
• Material DateTime Picker (for day picking)
• RxJava & RxAndroid (for threading)
• Timber (for logging)