Comparison

ISS Tracker vs Interstellar Tracker

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

ISS Tracker

Monitor the International Space Station's live position and vital telemetry data in real-time. Track its orbit, altitude, velocity, and internal environmental systems. Ideal for space enthusiasts and students interested in space exploration.

Highlights
  • Real-time ISS position tracking
  • Interactive world map
  • Altitude and velocity data
  • Comprehensive telemetry monitoring
  • Environmental and power system data
  • Dark mode support
Features
Read full description

ISS Tracker: Real-Time Space Station Monitor Experience the International Space Station like never before with our comprehensive real-time tracking and telemetry monitoring app. Perfect for space enthusiasts, students, and anyone fascinated by space exploration. KEY FEATURES: LIVE TRACKING & ORBIT • Real-time ISS position tracking on an interactive world map • Current altitude, velocity, and orbital period • Precise latitude and longitude coordinates • Customizable map views (Standard & Satellite) COMPREHENSIVE TELEMETRY • Position & Attitude: Real-time altitude, velocity, yaw, pitch, and roll • Environmental Systems: O₂ levels, CO₂ levels, cabin pressure, and temperature • Power Systems: CMG momentum and status • Thermal Control: Loop A/B temperature and flow rates • Water Management: Clean water, waste water, and urine tank levels • Cooling Systems: Avionics and air cooling temperatures • Oxygen Supply: O₂ and N₂ tank pressure readings • Node Systems: Avionics temperature monitoring • EVA Systems: EMU voltage and current readings • Communications: Ku-Band status and video channels SMART FEATURES • Dark mode support for comfortable viewing • Intuitive interface designed for space enthusiasts • Real-time data updates • Professional-grade accuracy EDUCATIONAL VALUE: Perfect for: • STEM students learning about space technology • Space enthusiasts tracking ISS operations • Teachers demonstrating orbital mechanics • Anyone interested in space station operations Stay connected with humanity's outpost in space. Download ISS Tracker now and monitor the International Space Station's vital signs in real-time. Note: This app uses official telemetry data to provide accurate information about the International Space Station's systems and position.

About

Interstellar Tracker

Features
Read full description

Point your iPhone at the sky and discover comets, meteor showers, and near-Earth objects in real time. Interstellar Tracker overlays an AR reticle on your live camera feed and plots every tracked celestial object exactly where it sits in your sky — above or below the horizon. FEATURES • Live AR sky view — camera feed with Three.js overlay • Comets, meteor showers & NASA near-Earth objects • Tap any object to see magnitude, altitude, azimuth & distance • TRACK mode — follow the amber arrow until TARGET LOCKED • Upcoming Events — get notified when something visible is passing • Works at night, no light pollution needed HOW TO USE 1. Open the app and grant camera, location & motion access 2. The sky map loads automatically for your location 3. Tap any dot to learn more — hit TRACK to lock on 4. Tap the bell icon for upcoming visible events

Screenshots

ISS Tracker4 screens
Interstellar Tracker3 screens

Verdict

The call

The clearest difference is update cadence: Interstellar Tracker at daily against ISS Tracker's weekly. Interstellar Tracker also leads on iOS requirement (13.0 vs 15.1). On price, ads, 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

ISS Tracker ships an update weekly, Interstellar Tracker daily. The most recent releases landed on September 30, 2026 and October 2, 2026 respectively.

Scorecard2 real differences · 8 level
ISS Tracker versus Interstellar Tracker: the parameters behind the verdict, then further details
ParameterISS TrackerInterstellar Tracker
PriceFreeFree
Rating5.0 (5 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings5 — better—
Update frequencyWeeklyDaily — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS15.113.0 — better
Further details — not scored
Size32 MB4 MB
Age rating4+4+
DeveloperLucent Enterprises Ltd.Sanith Erankandy

In-app purchases

None

ISS Tracker

No in-app purchases

None

Interstellar Tracker

No in-app purchases

Questions

Is ISS Tracker free?
ISS Tracker is free to download, with no in-app purchases.
Is Interstellar Tracker free?
Interstellar Tracker is free to download, with no in-app purchases.
Do ISS Tracker or Interstellar Tracker have ads?
Neither ISS Tracker nor Interstellar Tracker shows ads.
Which is updated more often, ISS Tracker or Interstellar Tracker?
ISS Tracker ships an update weekly, and Interstellar Tracker daily. Most recently, ISS Tracker was updated on September 30, 2026 and Interstellar Tracker on October 2, 2026.

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