Comparison

ISS Tracker vs ENSolarX

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

Find out when the International Space Station flies over you and exactly where to look. On a good night it’s brighter than any star. YOUR NEXT PASS, IN PLAIN WORDS “Tonight at 8:05 PM. Look west, low.” Each pass also says how long it’s visible and how bright it is, and has a round sky chart that shows its path, from where it appears to where it fades. See 14 days of passes, and the cloud forecast for the next ones. ALERTS FOR GOOD PASSES Get a heads-up a few hours before a good pass, and an alert 5 minutes before it starts. A good pass climbs at least 30° above the horizon, or is bright and long. If two weeks have none, you get alerts for the best low passes instead. You can turn on alerts for every visible pass in the app’s settings. A Live Activity counts down on your Lock Screen and in the Dynamic Island. FIND IT IN THE SKY Hold your phone up and follow the pointer to the station. Saw a bright, moving light? Ask “Was that the ISS?” and get a straight answer. No telescope needed. WHERE IS THE ISS RIGHT NOW? See it on a 3D globe, with the day and night sides of Earth, or on a live map with the ground track of its orbit. You can add Tiangong, China’s space station, and get its passes too. WHO’S UP THERE See the crew on board, and the next launches, dockings and spacewalks. ALWAYS ONE GLANCE AWAY Widgets show your next pass on the Home Screen and Lock Screen. A Control Center button opens the sky pointer. PRIVATE AND SIMPLE No account needed. Every pass is worked out on your phone, and your exact location is never sent to us. Apple Weather and Apple Maps use it for the cloud forecast and the place name. For iPhone and iPad.

About

ENSolarX

Features
Read full description

ENSolarX App – inteligentne zarzadzanie energia w Twoim domu i firmie ENSolarX App to zaawansowana aplikacja mobilna stworzona z mysla o uzytkownikach systemow fotowoltaicznych i magazynow energii. Umozliwia pelne zarzadzanie oraz zdalny monitoring instalacji PV, falownika solarnego i systemu magazynowania energii (BMS), bez potrzeby fizycznego dostepu do urzadzen. Dzieki ENSolarX masz dostep do wszystkich danych w czasie rzeczywistym – gdziekolwiek jestes. Kluczowe funkcje aplikacji ENSolarX: Zdalna kontrola falownika i BMS – konfiguruj parametry pracy, wlaczaj/wylaczaj komponenty systemu i optymalizuj dzialanie instalacji. Monitoring w czasie rzeczywistym – sprawdzaj aktualna produkcje i zuzycie energii, poziom naladowania akumulatorow, przeplyw mocy i wiele innych wskaznikow. Lacznosc przez Wi-Fi – aplikacja komunikuje sie z modulem ENSolarX, ktory integruje rozne urzadzenia przez RS232, RS485 lub UART. Automatyzacja – steruj przekaznikami (np. SONOFF), uruchamiaj grzalki lub inne odbiorniki na podstawie aktualnych danych energetycznych. Historia i statystyki – analizuj dane z godzin, dni, tygodni i miesiecy, sledz oszczednosci oraz popraw efektywnosc swojego systemu. Integracja z inteligentnym domem – wspolpraca z protokolem MODBUS i systemami Smart Home pozwala na zaawansowane sterowanie calym ekosystemem domowym. Obsluga wielu marek falownikow i BMS – ENSolarX wspolpracuje z popularnymi producentami takimi jak Deye, Sofar, Growatt, Axpert, JK, JBD, DALY, QUCC i wieloma innymi. Intuicyjny interfejs – prosta, przejrzysta i nowoczesna aplikacja dostepna na urzadzenia z Androidem (iOS w przygotowaniu). Dlaczego warto? Dzieki ENSolarX App masz wszystko pod kontrola – optymalizujesz zuzycie energii, zmniejszasz rachunki i zwiekszasz niezaleznosc energetyczna. To narzedzie stworzone zarowno dla pasjonatow fotowoltaiki, jak i uzytkownikow szukajacych prostoty i efektywnosci.

Screenshots

ISS Tracker4 screens
ENSolarX4 screens

Verdict

The call

The clearest difference is price: ISS Tracker at Free against ENSolarX's $19.99. ISS Tracker also leads on update cadence (weekly vs every 4 weeks). ENSolarX's advantage is iOS requirement (15.0 vs 26.0). On 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

ISS Tracker is free to download; ENSolarX costs $19.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

ISS Tracker ships an update weekly, ENSolarX every 4 weeks. The most recent releases landed on November 4, 2026 and November 8, 2026 respectively.

Scorecard3 real differences · 7 level
ISS Tracker versus ENSolarX: the parameters behind the verdict, then further details
ParameterISS TrackerENSolarX
PriceFree — better$19.99
Rating4.8 (20 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings20 — better—
Update frequencyWeekly — betterEvery 4 weeks
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPadiPhone, iPod
Requires iOS26.015.0 — better
Further details — not scored
Size15 MB70 MB
Age rating4+4+
DeveloperLucent Enterprises Ltd.Krzysztof Rucinski

In-app purchases

None

ISS Tracker

No in-app purchases

None

ENSolarX

No in-app purchases

Questions

Is ISS Tracker free?
ISS Tracker is free to download, with no in-app purchases.
Is ENSolarX free?
ENSolarX costs $19.99, with no in-app purchases.
Do ISS Tracker or ENSolarX have ads?
Neither ISS Tracker nor ENSolarX shows ads.
Which is updated more often, ISS Tracker or ENSolarX?
ISS Tracker ships an update weekly, and ENSolarX every 4 weeks. Most recently, ISS Tracker was updated on November 4, 2026 and ENSolarX on November 8, 2026.

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