Support
Questions, bug reports and data problems all go to the same inbox.
It helps to include your device, its iOS version, the app version (shown under About in Settings) and the system or planet you were looking at.
Common questions
Why are some values amber?
Amber marks a value the app worked out rather than one the archive published: for example, an orbital distance recovered from the planet’s period with Kepler’s third law, or a spectral class inferred from a star’s temperature. You can turn the highlight off in Settings › Data › Highlight derived values.
How current is the data?
ExoExplorer comes with a complete copy of the NASA Exoplanet Archive. When you’re online, it downloads the latest version at most once a day when you open the app. To check for an update now, open Settings and tap Refresh next to Archive snapshot.
Does it work offline?
Yes. Everything except downloading newer data works without a connection.
Why don’t I see generated summaries?
Generated summaries need Apple Intelligence, which requires iOS 26 or later on a supported iPhone or iPad with Apple Intelligence turned on. Without it, ExoExplorer shows a summary built directly from the data, and well-known systems have hand-written entries on every device. You can switch generated summaries off in Settings › Summaries.
Why does a system look so different in True scale?
True scale shows real distances and sizes, so planets shrink to specks and close-in orbits crowd together. Log scale, the default, compresses distances so every orbit stays visible. Linear lays the planets out in a row beside their numbers.
Why doesn’t the night sky match photographs?
Faint stars are drawn brighter than they appear, and warmer in colour, or most of a system’s neighbours would be invisible on a phone screen. Positions are today’s, without the stars’ slow drift over time, and the nebula is decorative.
I think a value is wrong.
ExoExplorer shows the archive’s values as published. Email us with the planet or star’s name and what you expected; we’ll check whether the value comes from the archive or from the app’s own calculation. Corrections to the archive itself are made by the NASA Exoplanet Archive.
Which devices are supported?
iPhone and iPad with iOS 15.1 or later.
Does ExoExplorer collect any data about me?
No. It has no account, analytics or crash reporting, and it only contacts the NASA Exoplanet Archive to download planet data. The privacy policy has the details.