Celestial Atlas Support
Questions, problems and requests all go to one place.
Contact
Email btompkinstx@gmail.com and you will normally hear back within two business days.
It helps to include your device model, your iOS version, and what you were doing when the problem appeared.
Common questions
Do I need an account?
No. Celestial Atlas has no accounts and no sign-in.
Where is my data kept?
On your device. See the privacy policy for the detail.
How do I delete my data?
Delete the item inside the app, or delete the app — that removes everything it stored.
Does it work offline?
Sends only the birthplace name you type to the Open-Meteo geocoding service, to turn it into coordinates. Never your name, date or time of birth.