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Finsternis
See which eclipses you can watch from where you are
Finsternis tells you the honest local answer for every solar & lunar eclipse through 2050: visible from your spot or not, how much of the Sun is covered, exact local times, and the path on a real 3D globe with the shadow animated across Earth. Computed on-device from NASA data — no account, no tracking, works offline.
Hi Product Hunt 👋
I built Finsternis to answer something existing eclipse tools make weirdly hard: will I actually see this from where I'm standing, and what will it look like? Global path maps don't tell you that.
You drop an observation point anywhere, and it gives you a straight answer — visible or not, % of the Sun covered, precise local start/peak/end — plus the path on a 3D globe you can scrub through time, and a compass "Sky Finder" that points you to the Sun at the moment.
Everything is computed on your device from NASA data — no account, no tracking, no ads, fully offline (only place search needs a connection). Native iOS + Android, one-time purchase, English & German.
Timely reason to share now: a total solar eclipse crosses Iceland & Spain on Aug 12 — and the longest totality of the century hits Egypt on Aug 2 2027, already mapped in the app.
Would love your feedback — happy to go deep on the offline astronomy or the two-native-apps build. 🌘
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About Finsternis on Product Hunt
“See which eclipses you can watch from where you are”
Finsternis was submitted on Product Hunt and earned 0 upvotes and 1 comments, placing #82 on the daily leaderboard. Finsternis tells you the honest local answer for every solar & lunar eclipse through 2050: visible from your spot or not, how much of the Sun is covered, exact local times, and the path on a real 3D globe with the shadow animated across Earth. Computed on-device from NASA data — no account, no tracking, works offline.
Finsternis was featured in Productivity (658.2k followers) on Product Hunt. Together, these topics include over 152.4k products, making this a competitive space to launch in.
Who hunted Finsternis?
Finsternis was hunted by Konrad Neuwirth. A “hunter” on Product Hunt is the community member who submits a product to the platform — uploading the images, the link, and tagging the makers behind it. Hunters typically write the first comment explaining why a product is worth attention, and their followers are notified the moment they post. Around 79% of featured launches on Product Hunt are self-hunted by their makers, but a well-known hunter still acts as a signal of quality to the rest of the community. See the full all-time top hunters leaderboard to discover who is shaping the Product Hunt ecosystem.
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Konrad Neuwirth