Answers to the questions we hear most. Anything else — email us; a human replies.
Yes — completely. Every planet, place, creature and fact works with zero network connection: on a plane, in a tent, anywhere. The only thing that needs the internet is the daily discovery feed, and even that quietly falls back to the last version it fetched, with a visible date stamp.
Astro Explorer has two skins over the same universe. Explorer mode (the default) has a clean, premium look with grown-up facts one tap away. Kid mode is built for little hands: bigger buttons, a playful look, and deeper content gated behind a parent hold-gesture, so a pre-reader can explore alone safely.
To switch, press and hold the small dot in the corner of the screen for about three seconds — the hold is deliberate, so kids don't toggle it by accident.
Every planetary value in the app — sizes, distances, moons, temperatures — comes from NASA planetary fact sheets and the International Astronomical Union, and each fact carries its source inside the app's data files. Planet sizes on screen are stylized so small worlds stay visible, but the relationships are always true: Jupiter really is the biggest, Mercury really is closest to the Sun.
Yes, because there is none. The app has no accounts, no ads, no analytics and no tracking. Exploration progress is saved only on your device, and deleting the app deletes it. The full story fits in a two-minute read: our privacy policy.
Found a bug, have an idea, or a curious kid stumped us with a question? Email edonapps@gmail.com — the developer reads every message.