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ISS Detector

Freemium#29 of 34 in Astronomy Apps

ISS Detector: A focused astronomy app for ISS, Starlink, and satellite alerts. Ranked #29 of 34 in Astronomy Apps by our editors (6.1/10); pricing: Free plan; best for ISS, Starlink, and satellite alerts.

6.1/10Editor score

Visit ISS Detector

ISS Detector6.1 Visit ISS Detector

At a glance

Editor score
6.1 / 10
Pricing
Free plan
Best for
ISS, Starlink, and satellite alerts
Free plan
Yes
Facts checked
21 Sep 2026

Where it wins
- Location-based ISS pass predictions with notifications and alarms
- Weather checks help assess conditions before a sighting
- Tracks Starlink, planets, comets, and amateur-radio satellites
Where it doesn't
- Its focus is satellite observation rather than full-sky exploration
- Premium purchase structure differs by platform and region
- Advanced tracking features are divided across paid access options

Our verdict on ISS Detector

ISS Detector is a mobile astronomy app for predicting visible passes of the International Space Station and other satellites from a user’s location. It suits casual skywatchers, astronomy enthusiasts, and amateur-radio operators who want timely alerts, pass information, and practical conditions for observing objects overhead. The app covers Android, iOS, and macOS, with features including location-based pass predictions, alarms, local weather checks, and orbital information.

The published plans show a Free option with ISS pass predictions, pass alerts, and weather checks. Premium Access adds additional satellite and astronomy tracking features, while ISS Detector Pro includes all extensions, removes ads, and adds satellite, planet, and comet tracking. The paid tiers extend the app beyond basic ISS alerts, but the plan structure varies by platform and region. That makes the Free plan a straightforward entry point, while Premium Access and Pro are intended for users who want broader object coverage or the complete feature set.

ISS Detector’s strongest fit is focused observation rather than general sky exploration. Alongside ISS and Starlink tracking, it supports famous objects, planets, comets, amateur-radio satellites, weather satellites, Doppler-shift information, transmitter details, and satellite pass and orbital data. This breadth within satellite tracking gives radio-oriented observers and satellite watchers useful depth. However, people seeking a broad full-sky astronomy experience may prefer an app centered on wider celestial exploration. Choose ISS Detector for alerts and orbital visibility planning; choose an alternative if satellite observation is not your primary interest.

Your product? Our editors can test ISS Detector in depth and publish a review, labelled as paid · from $149/mo →

ISS Detector pricing

Plans Free planFreemium A usable free plan; paid tiers unlock the limits above. Prices checked 21 Sep 2026.

See plans on issdetector.com

All 3 ISS Detector plans and prices →

ISS Detector fact sheet

Free plan	Yes
Paid from	Not verified
Offline access	Not verified
Platform coverage	Cross-platform
AR sky view	Not verified
Telescope control	Not verified
Mission tracking	Not verified
Catalog size	Not verified
Learning content	Not verified
Deployment	Mobile, Desktop
Platforms	Android, iOS, macOS
Compliance & security	GDPR
Support	Email
Built for	Solo, Small business (editorial estimate)
Pricing	Free plan (source)
Website	issdetector.com
Facts checked	21 Sep 2026

Alternatives to ISS Detector

See all ISS Detector alternatives →

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Featured on iTechGuides

ISS Detector is listed in our Astronomy Apps directory. Add the badge to your site — it links back to this page.

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Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

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Last updated 7 Oct 2026 · How we research and update