Sky Alerts
A quiet notice before a full moon, new moon, solstice, equinox, and 15 minutes before golden hour.
Know exactly when the sky turns gold.
Earthshine is an iOS app that calculates sunrise, sunset, golden hour and moon phase for your exact coordinates, on your phone, with no account and no subscription.
Open it at dusk and it already knows it's dusk. Golden hour to the minute, moon phase tonight, and whether the stars are worth going out for.
Buy once on iPhone, own it forever. Pick your own price. Works with no signal.
How it works
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Open it where you are
Earthshine reads your coordinates and works out the sun, moon and season for that exact spot.
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See what's happening now
Open it at dusk and it says it's dusk, with the sky drawn as it looks right now.
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Go deeper if you like
Stargazing conditions, planets above the horizon, aurora likelihood and ISS passes are a tap away.
What Earthshine shows you
Astronomy that runs on your phone
Sun, moon, season and circadian maths compute on device and keep working with no signal at all.
Golden hour, to the minute
Morning and evening, plus blue hour, timed for your exact coordinates.
Stargazing score
Cloud cover, moonlight and light pollution combined into one honest read on whether tonight is worth going outside for.
What happens to your location?
Location is used only to compute the sky above you. It is not stored and not sold. Weather, space weather, ISS passes and place names are fetched when you're online; nothing else leaves your phone.
Earthshine at a glance
- Platform
- iOS
- Price
- Buy once, own forever. Pick your own price from three amounts, all unlocking exactly the same thing.
- Offline
- Yes, for sun, moon, season and circadian data. Weather, space weather, ISS passes and place names need a connection.
- Account
- None
- Data collected
- None. No analytics, no server. Location is used only to compute the sky above you, never stored or sold.
- Developer
- Christelle, marielise.dev
Pricing
Buy once, own forever. Pick your own price from three amounts, all unlocking exactly the same thing. No subscription, no adverts, no account.
FAQ
Does Earthshine work offline?
Yes, for sun, moon, season and circadian data. Weather, space weather, ISS passes and place names need a connection.
Is there a subscription?
No. Buy once and own it, choosing your own price from three amounts.
Does Earthshine track my location?
It reads your coordinates to compute the sky above you. Location is not stored or sold.
What is a stargazing score?
A combined read on cloud cover, moonlight and light pollution, telling you whether tonight is worth going outside for.
What are Sky Alerts?
Quiet notifications before a full moon, new moon, solstice or equinox, and 15 minutes before golden hour.
Tonight's sky is waiting.
Sun, moon and stars for exactly where you stand.
Download on theApp StoreBuy once, own forever, pick your own price. No subscription, no account.