Heavens-Above vs Sky Guide
Heavens-Above
heavens-above.comSky Guide
fifthstarlabs.comSide by side
| Figure | Heavens-Above | Sky Guide |
|---|---|---|
| Price from | Free | — |
| Free plan | Yes | — |
| Free trial | — | — |
| Open source | — | — |
| Web | Yes | — |
| macOS | — | Yes |
| iOS | Yes | Yes |
| Android | Yes | — |
| Plans published | 2 | 2 |
| Spec score · Astronomy Apps | 8.4 (#7) | 7.4 (#23) |
| Headquarters | Munich, Germany | Seattle, Washington, United States |
| Offline use | The Android app performs predictions locally and says it needs a data connection only every few days. | Sky Guide can function with or without Wi-Fi, cellular service, or GPS. |
| Purpose | Heavens-Above provides predictions and information for observing satellites and other objects in the sky. | Sky Guide identifies stars, constellations, planets, and satellites when users hold the app overhead. |
| Support | The FAQ welcomes suggestions, corrections, and bug reports, but says the team cannot reply to every email and only understands email written in English. | Fifth Star Labs links to a Sky Guide Support site from its product page. |
Plans
In their own words
Heavens-Above
Heavens-Above provides satellite predictions and sky information through Android, iOS and web access. The website lists 10-day predictions for selected satellites, daily predictions for brighter satellites and Starlink passes from a launch. It also offers a live sky view, interactive sky chart, dynamic 3D Starlink orbit display and interactive 3D ISS visualization. Charts and information cover the Sun, Moon, planets, comets, asteroids and constellations. The Android app includes predictions for the ISS, visible satellites and radio satellites, plus orbit and ground-track views, night mode and an orientation-based tracker. Selected passes can be added to a device calendar. Predictions run locally, with a data connection needed every few days. The free plan costs nothing; Heavens-Above Pro costs $4.99, paid once and removes Android adverts. Predictions become less accurate farther from the current date.
Sky Guide
Sky Guide has no write-up on Specifiction yet; its figures are above.