Comparison

Current Altitude + Compass vs ISS Tracker

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

Head to head
About

Current Altitude + Compass

This utility app provides hikers and explorers with essential outdoor information. It offers real-time altitude, a digital compass, air quality, UV index, and a flashlight. Key locations can be saved offline for easy navigation.

Highlights
  • Real-time altitude readings
  • Digital compass navigation
  • Air quality index updates
  • UV index monitoring
  • Offline location saving
  • Built-in flashlight
Features
Read full description

Current Altitude + Compass is your reliable outdoor companion for hiking, camping, and exploring. Get accurate elevation readings, a real-time compass, air quality updates, UV index, and a handy flashlight, all in one easy-to-use app. Track your current altitude in meters or feet, navigate confidently with a clear digital compass, and check real-time air quality and UV conditions before heading outside. Save key locations offline with GPS coordinates and heading information. Perfect for off-grid adventures, this app works fully offline and keeps your data secure on your device. Core Features: - Digital Compass: Quickly find your direction with precise compass guidance. - Altimeter: View your current altitude in meters or feet, updated in real time. - Air Quality Index: Check the current air quality using the US EPA standard — ideal for runners, cyclists, and anyone with respiratory sensitivities. - UV Index: Know the sun exposure risk before you go outdoors, from Low to Extreme. - Location Storage: Save waypoints with altitude, compass heading, and GPS coordinates for offline reference. - Flashlight: Use the built-in flashlight to light your path anytime. Stay informed and prepared wherever your journey takes you.

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.

Screenshots

Current Altitude + Compass4 screens
ISS Tracker4 screens

Verdict

The call

The clearest difference is in-app purchases: ISS Tracker at none against Current Altitude + Compass's 1. ISS Tracker also leads on ads (none vs shown) and update cadence (weekly vs every 2 months). Current Altitude + Compass's advantage is iOS requirement (11.0 vs 26.0). On price 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. Current Altitude + Compass sells 1 one-off in-app purchase. ISS Tracker asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

ISS Tracker holds the better App Store score, 4.7 against 4.5. That said, the two scores are not equally well evidenced: ISS Tracker has 17 ratings behind it against 2, so its average is the more settled of the two.

UpkeepUpdate frequency

Current Altitude + Compass ships an update every 2 months, ISS Tracker weekly. The most recent releases landed on October 6, 2026 and October 16, 2026 respectively.

Scorecard7 real differences · 3 level
Current Altitude + Compass versus ISS Tracker: the parameters behind the verdict, then further details
ParameterCurrent Altitude + CompassISS Tracker
PriceFreeFree
Rating4.5 (2 ratings)4.7 (17 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings217 — better
Update frequencyEvery 2 monthsWeekly — better
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS11.0 — better26.0
Further details — not scored
Size48 MB15 MB
Age rating4+4+
DeveloperRedTracker LLCLucent Enterprises Ltd.

Customer experience

Current Altitude + Compass

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

ISS Tracker

All ratings17 ratings
Positive94.1%
Neutral0.0%
Negative5.9%
Written reviews3 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

1 purchases

Current Altitude + Compass

One-time1
  • Remove Ads$3.99
None

ISS Tracker

No in-app purchases

Questions

Is Current Altitude + Compass free?
Current Altitude + Compass is free to download, with in-app purchases available.
Is ISS Tracker free?
ISS Tracker is free to download, with no in-app purchases.
Which has better reviews, Current Altitude + Compass or ISS Tracker?
ISS Tracker is rated higher. Current Altitude + Compass averages 4.5 out of 5 from 2 ratings, while ISS Tracker averages 4.7 from 17 ratings.
Do Current Altitude + Compass or ISS Tracker have ads?
Current Altitude + Compass shows ads; ISS Tracker does not.
Which is updated more often, Current Altitude + Compass or ISS Tracker?
Current Altitude + Compass ships an update every 2 months, and ISS Tracker weekly. Most recently, Current Altitude + Compass was updated on October 6, 2026 and ISS Tracker on October 16, 2026.

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