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ISS Detector vs SkyPortal

What both publish

FactISS DetectorSkyPortal
HeadquartersGouda, NetherlandsTorrance, California, United States
IntegrationsThe privacy policy lists Space-Track for orbital data, RevenueCat for subscriptions, Google Analytics and Firebase for app statistics, met.no for weather, and Minor Planet Center for comet and celestial data.SkyPortal works with compatible Celestron WiFi telescopes, the separately sold SkyPortal WiFi Module, and StarSense AutoAlign.
PurposeISS Detector helps users find visible International Space Station passes and satellite pass predictions for their location.SkyPortal is a planetarium app and telescope control solution developed with SkySafari app developers.
SupportThe app listing provides support by email at [email protected].Celestron offers technical support through live chat, email, or phone, alongside a knowledge base with frequently asked questions.

ISS Detector plans

  • ISS Detector Satellite TrackerFree
  • ISS Detector Pro$17.99, paid once

SkyPortal plans

  • SkyPortalFree

Pick ISS Detector if…

It suits people who want alerts and local conditions for ISS sightings, as well as users interested in tracking other listed objects. Amateur radio satellite followers may value the transmitter and Doppler details.

Pick SkyPortal if…

SkyPortal suits people exploring the night sky on a supported Android or iOS device. Telescope control is for users with a compatible Celestron WiFi telescope or the separately sold SkyPortal WiFi Module.

Charts they share