‹ æther

Terms of Use

Effective October 16, 2026

The short version: æther is a free app for reflection and entertainment. Astrology isn't a substitute for professional advice, so please don't make important decisions based on it alone. Tips are voluntary and support the app.

These terms are an agreement between you and Aether App ("we", "us") about your use of æther (the "app"). By using the app, you agree to them. If you don't agree, please don't use the app.

What æther is

æther combines planet positions calculated from astronomical data with ideas from historical astrological traditions and the space weather above you. It is offered for reflection and entertainment. Astrology has not been shown to predict events, and the app does not predict the future.

Not professional advice

Nothing in the app is medical, mental health, legal, financial or other professional advice. Don't use it to diagnose or treat any condition, or as a reason to delay getting help. Talk to a qualified professional about decisions that matter to your health, money or safety.

If you're struggling

If you're in crisis or thinking about harming yourself, please reach out to someone now. In the US, call or text 988 (Suicide & Crisis Lifeline). In the UK and Ireland, call Samaritans on 116 123. Elsewhere, you can find a helpline at findahelpline.com, or call your local emergency number.

Who can use æther

You must be at least 13 years old to use the app. If you're under the age of majority where you live, please use it with the permission of a parent or guardian.

Free to use, and tips

æther is free, with no ads and no paid features. You can choose to leave a tip through Ko-fi to support the app. Tips are:

Ko-fi and its payment providers (PayPal or Stripe) process tips, and their own terms and privacy policies apply to them.

Your information and your content

Your birth details, check-ins and journal are stored on your own device, as described in our Privacy Policy. You're responsible for keeping a backup if you want one. Clearing your browser data or erasing the app removes them.

Using the app fairly

Please don't misuse the app, for example by trying to disrupt it, overload it, or use it to break the law or harm others.

Ownership and credits

The app's design, writing and artwork belong to Aether App. The app is built with open-source software and data used under their own licences, including Astronomy Engine (MIT), three.js (MIT), the Fraunces and Figtree typefaces (SIL Open Font License), space weather data from NOAA's Space Weather Prediction Center, weather data from MET Norway (CC BY 4.0) and place names from GeoNames (CC BY 4.0). Lines from historical traditions are paraphrased in our own words.

Accuracy and availability

We work to make planet positions and data accurate, but calculations, outside data and the app itself may sometimes be incomplete, delayed or unavailable. We may change, pause or stop parts of the app at any time.

No warranty

The app is provided "as is" and "as available", without warranties of any kind, to the fullest extent the law allows.

Limitation of liability

To the fullest extent the law allows, Aether App is not liable for any indirect, incidental or consequential loss, or for decisions you make based on the app. Nothing in these terms limits liability that cannot be limited by law, or removes consumer rights you have where you live.

Changes to these terms

We may update these terms from time to time. The effective date above shows the latest version. If you keep using the app after a change, the updated terms apply.

Governing law

These terms are governed by the laws of the State of New York, United States, without regard to its conflict-of-laws rules, except where the law where you live gives you the right to rely on its own consumer protections.

Contact

Aether App
aetherapp@icloud.com

Also see our Privacy Policy.