# Epicycle: Learn the Sky — Stars, stories & space science

> Stars, stories & space science (iPhone/iPad app by FlowDevs, LLC.)

- Source: https://appshunter.io/ios/app/epicycle-learn-the-sky/id6811191266 (this page in markdown: same URL + `.md`)
- Developer: [FlowDevs, LLC](https://appshunter.io/developer/1872839618)
- Category: Education, Reference
- Price: Free
- Age rating: 4+
- Requires: iOS 17.0 · 5 MB
- Released: 2026-09-15
- Data updated: 2026-10-10

## What is Epicycle?

Look up. Ask questions. Discover together.

Epicycle is a free astronomy companion from FlowDevs for curious explorers and families. Learn about the sky at home, in a classroom, or outdoors—without accounts, ads, subscriptions, or in-app purchases.

LEARN ANYWHERE
Explore educational cards for the Sun, Moon, Mercury, Venus, Mars, Jupiter, and Saturn. Discover all 88 constellations, their guide figures, stories, and modern astronomy facts. Search the bundled star catalog and learn what brightness, coordinates, and spectral types mean.

TRY A SPACE QUIZ
Answer five questions at your own pace. Every answer comes with an explanation, and you can play again whenever you like.

EXPLORE A SKY MAP
Choose one of six example cities and change the viewing time. Watch how the modeled sky changes, show or hide constellation lines, and tap solar-system objects to learn more. No camera or location permission is needed.

MEET THE LIVE SKY
On supported iPhones and iPads, use the rear camera, location, and motion sensors to view an approximate sky overlay. Tap a planet or constellation for its educational card. Adjust heading alignment when nearby magnets or compass interference cause an offset.

PRIVATE BY DESIGN
All astronomy calculations and learning content run on your device. Camera images, location, and motion data are not uploaded or shared by Epicycle. Learn, Explore, the quiz, and the sky map work offline without camera or location permission.

Explore outside with a grown-up and stay aware of your surroundings. Never look directly at the Sun or point binoculars or a telescope at it. Sky positions are educational estimates; visibility depends on daylight, weather, buildings, and light pollution. Camera alignment depends on the device’s sensors.

Made by FlowDevs. A window to the cosmos, free for everyone.

## Is Epicycle safe?

Not enough ratings yet to assess Epicycle.

## Is Epicycle legit?

Epicycle: Learn the Sky has limited verification signals. The AppsHunter Legitimacy Score for Epicycle is 58 out of 100 points across 7 verification signals from App Store and developer data.


## Version history (last 2 releases)

### 1.1.0 — 2026-09-24

Stories in the stars. Every one of the 88 constellations now has its own story, told by 12 sky cultures including Greek, Babylonian, Chinese, Indian, Polynesian and Indigenous. Each card also explains what the star names mean and shows the star patterns inside the constellation.

Sharper live sky. Center the Moon, a planet or a bright star and tap Align to lock the sky in place. Star positions now account for the atmosphere bending starlight and for Earth's slow wobble, and constellation lines glow with a gentle pulse.

Under the Same Stars. The dedication to Gül Ateş now includes her photo.

### 1.0 — 2026-09-15

No release notes.

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## More apps by FlowDevs, LLC

- [PetalAtlas](https://appshunter.io/ios/app/petalatlas/id6767259363)

All apps by FlowDevs, LLC: https://appshunter.io/developer/1872839618

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-10-10.*