ISS Detector vs ISSINFO
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
ISS Detector
Easily track the International Space Station and other satellites. Receive timely alarms before passes and get weather condition checks for optimal viewing. Enhance functionality with optional in-app purchases to discover more celestial objects.
- ISS tracking and alerts
- Weather condition checks
- Alarm notifications
- Track Starlink trains
- Track Hubble telescope
- Track amateur radio satellites
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Have you seen the International Space Station? It is visible with the naked eye! This is the easiest way to spot the station. ISS Detector will tell you when and where to look for the ISS. You get an alarm a few minutes before a pass. You will never miss it. ISS Detector will also check if the weather conditions are right. A clear sky is perfect for spotting. Premium will enhance the functionality of ISS Detector. With the subscription you can add many famous satellites and amateur radio satellites. See the Starlink satellite trains, Hubble space telescope, rocket bodies, Vanguard 1 and many bright satellites. Available categories in Premium: Radio Amateur Satellites: Track dozens of ham and weather satellites. Starlink: Track Starlink satellite trains. Famous Objects: Hubble Space Telescope, rocket bodies, bright satellites and more. Comets: Find comets in the night sky. You might need binoculars or a telescope to see them Planets: Find all the planets Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
ISSINFO
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Follow the International Space Station in real time, plan your next sighting, and explore the spacecraft and worlds beyond Earth. ISSINFO combines live orbital tracking, accurate pass predictions, weather insights, and immersive 3D experiences in one app for iPhone and iPad. TRACK THE ISS AROUND EARTH - Follow the ISS on standard, satellite, hybrid, and photorealistic 3D globe views. - See the station at its true orbital altitude above a realistic day and night Earth. - View current and historic orbit paths, city lights, altitude, speed, visibility, and the location below. - Track Tiangong, Hubble, Vanguard 1, Landsat 9, and NOAA-20, each with its own position and orbit. PLAN YOUR NEXT SIGHTING - Find upcoming passes for your location. - Check start time, direction, maximum elevation, duration, visibility, and viewing quality. - Use cloud cover forecasts to decide whether the sky is worth watching. - Explore detailed sky path diagrams and maps for each pass. - Point the AR camera toward the sky to help locate the ISS. CHOOSE HOW YOU ARE ALERTED Set a standard notification before a pass, or choose a wake-up alarm for a pass you do not want to sleep through. Select an alarm at the start of the pass or from 5 to 60 minutes beforehand. With permission, alarms can sound through Silent Mode and Focus with a full-screen alert. STARLINK VISUALIZER Watch thousands of Starlink satellites move in real time around a photorealistic 3D Earth, or replay the last 24 hours and see the Earth turn beneath the constellation. Filter by orbital shell, use tapered trails to read direction, see your own location, and select individual satellites for live altitude and speed. Positions are computed on your device using SGP4. TRANSIT FINDER Discover rare moments when the ISS or Tiangong crosses the Sun or Moon. Search around your location, view the ground centerline, see exactly where to stand, inspect transit diagrams, compare the view from home, and open driving directions to the best viewing spot. SOLAR SYSTEM SIMULATOR Travel through a detailed 3D model of the Solar System using real planetary positions. Move through time by up to 50 years, switch between visual and true scale, inspect planets and moons, and explore a GPU-rendered asteroid belt. FOLLOW ARTEMIS AND THE CREW Track NASA Artemis missions through live and historic deep-space trajectories, mission phases, itineraries, imagery, and phase notifications. You can also meet the people currently in space through crew photos, biographies, missions, and spacecraft details. ISSINFO Pro includes Starlink Visualizer, Transit Finder, Solar System Simulator, 30 days of pass predictions, multi-satellite tracking, cloud forecasts, AR tracking, pass notifications, and wake-up alarms. SUBSCRIPTION DETAILS ISSINFO Pro is an auto-renewing subscription, billed monthly or yearly. New subscribers can try the yearly plan free for 1 week. Payment is charged to your Apple Account at confirmation of purchase, or when the free trial ends. The subscription renews automatically unless cancelled at least 24 hours before the end of the current period. Manage or cancel it at any time in your Apple Account settings. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://issinfo.net/app.html#privacy Built for space enthusiasts, photographers, educators, and anyone who has looked up and wondered when the ISS will pass overhead. ISSINFO is an independent app and is not affiliated with NASA, ESA, SpaceX, or any government space agency.
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Verdict
The clearest difference is ads: ISSINFO at none against ISS Detector's shown. ISS Detector's advantage is iOS requirement (16.0 vs 26.0). On price, update cadence, in-app purchases and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. ISS Detector sells 11 in-app purchases, starting at $0.99 per month and ISSINFO sells 2 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.
ISS Detector ships an update monthly, ISSINFO every 6 weeks. The most recent releases landed on November 1, 2026 and October 9, 2026 respectively.
| Parameter | ISS Detector | ISSINFO |
|---|---|---|
| Price | Free | Free |
| Rating | 4.6 (729 ratings) — better | — |
| Positive reviews | 55.4% of reviews | — |
| Number of ratings | 729 — better | — |
| Update frequency | Monthly — better | Every 6 weeks |
| Ads | Yes | No — better |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 16.0 — better | 26.0 |
| Further details — not scored | ||
| Size | 33 MB | 26 MB |
| Age rating | 4+ | 4+ |
| Developer | Derk Vrijdag | Neil Johnson |
In-app purchases
ISS Detector
- Premium Access2 variants$0.991 Month
- Donation$1.991 Month
- Premium Access$1.991 Month
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- Premium Access$2.991 Year
- Premium Access7 Days trial$5.991 Year
- Donation2 variants$5.991 Year
- Premium Access7 Days trial$11.991 Year
- Starlink and Famous objects$3.99
- Amateur Radio Satellites$3.99
- Comets and Planets$3.99
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- Combo package$5.99
ISSINFO
- ISSINFO Pro Monthly$1.991 Month
- ISSINFO Pro Yearly$14.991 Year
Questions
Is ISS Detector free?
Is ISSINFO free?
Do ISS Detector or ISSINFO have ads?
Which is updated more often, ISS Detector or ISSINFO?
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