Comparison

Satellite Tracker ISS Live Map vs Muster

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

Head to head
About

Satellite Tracker ISS Live Map

Track satellites and the International Space Station in real-time with accurate orbital paths and visibility forecasts. Learn about space missions and receive custom alerts for upcoming passes. Designed for space enthusiasts and stargazers of all levels.

Highlights
  • Live Satellite & ISS Tracking
  • Satellite Visibility & Pass Forecasts
  • Educational Insights
  • User-Friendly Interface
  • Custom Alerts
Features
Read full description

Discover the cosmos with our Satellite Tracker app, offering real-time tracking of low-earth-orbit satellites and the International Space Station (ISS). Perfect for astronomers, students, and anyone fascinated by space, this app brings satellite motion and sky visibility to your fingertips. Key Features: - Live Satellite & ISS Tracking: Track thousands of low-earth-orbit satellites and the ISS in real time, with accurate orbital paths and pass predictions. - Satellite Visibility & Pass Forecasts: View detailed visibility schedules to know when satellites are brightest and observable in your location. - Educational Insights: Learn about satellite missions, orbits, and space technology using publicly available data. - User-Friendly Interface: Navigate easily and follow satellites with a clean, intuitive design. - Custom Alerts: Set notifications for upcoming satellite passes, including the ISS and supported satellite constellations. Why Our App? - Comprehensive and Up-to-Date: Access recent public orbital data for a wide range of satellites and space objects. - For Everyone: Whether you're a space enthusiast or a casual stargazer, our app is designed for all users. Download our app now and start tracking satellites directly from your device. Embrace the beauty of space exploration and stay informed about the satellites orbiting our planet. *Disclaimer: This app is not affiliated with neither SpaceX nor NASA nor Starlink nor ISS nor any satellite operator/space related . All satellite data is sourced from public, third-party databases, we do not own any of these data. Notice - This app are free-to-install, but has some premium features that need purchase/subscribe to use. Non-subscribed users can use each Premium feature for a limited number of times per day. - Subscriptions automatically renew unless cancelled 24 hours before the end of the period. - Manage your subscription and turn off auto-renewal in your account settings. - Any unused portion of a free trial will be forfeited if you subscribe. Term of use: https://moniqtap.com/terms-of-use/ Privacy Policy: https://moniqtap.com/privacy-policy/

About

Muster

This app helps U.S. Army Reserve soldiers track their readiness across personnel, training, and medical requirements. It provides a quick overview of what's current, due soon, or overdue, and directs users to the necessary systems for completion. Leaders can also use it to build squad readiness pictures via QR code sharing.

Highlights
  • Readiness tracking (personnel, security, training, fitness, medical)
  • Status at a glance (current, due soon, overdue)
  • Directs to required systems and steps
  • Logs completed tasks and dates
  • Leader mode for squad/platoon readiness
  • QR code status sharing
  • Local data storage, no account or server
Features
Read full description

Muster is a readiness tracker built for U.S. Army Reserve soldiers. See where you stand at a glance, know what's due, and get to the right place to fix it — in under a minute. WHAT MUSTER DOES - Tracks your readiness across personnel, security, training, fitness, and medical requirements in one place - Shows clear status at a glance — current, due soon, or overdue - Points you to the exact system and steps to complete each item - Logs what you've done and when, so you always have your own record BUILT FOR THE 0600 GLANCE Muster is designed to answer one question fast: what do I need to take care of? Open it in the parking lot before formation and know in seconds. LEADER MODE Leaders can build a squad or platoon readiness picture without a server or a spreadsheet. Soldiers share their status by QR code; leaders scan to assemble a roster and roll it up the chain. Status moves by QR, soldier to leader — nothing is uploaded anywhere. YOUR DATA STAYS ON YOUR DEVICE Muster stores everything locally on your phone. It has no account, no login, and no server. Your information never leaves your device unless you choose to share your status by QR code. We collect nothing. Muster is an unofficial tool. It is not affiliated with, endorsed by, or a system of record for the U.S. Army or Department of Defense. Always follow your unit's official guidance and systems of record.

Screenshots

Satellite Tracker ISS Live Map4 screens
Muster4 screens

Verdict

The call

The clearest difference is in-app purchases: Muster at none against Satellite Tracker ISS Live Map's 9. Muster also leads on ads (none vs shown) and update cadence (every 2 days vs monthly). Satellite Tracker ISS Live Map's advantage is ratings volume (388 vs 2). 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. Satellite Tracker ISS Live Map sells 9 in-app purchases, starting at $6.99 per 7 days. Muster asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Muster holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: Satellite Tracker ISS Live Map has 388 ratings behind it against 2, so its average is the more settled of the two.

UpkeepUpdate frequency

Satellite Tracker ISS Live Map ships an update monthly, Muster every 2 days. The most recent releases landed on October 17, 2026 and September 30, 2026 respectively.

Scorecard7 real differences · 3 level
Satellite Tracker ISS Live Map versus Muster: the parameters behind the verdict, then further details
ParameterSatellite Tracker ISS Live MapMuster
PriceFreeFree
Rating4.7 (388 ratings)5.0 (2 ratings) — better
Positive reviews50.0% of reviews—
Number of ratings388 — better2
Update frequencyMonthlyEvery 2 days — better
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhoneiPhone, iPod — better
Requires iOS17.615.1 — better
Further details — not scored
Size91 MB28 MB
Age rating4+4+
DeveloperPhong PhamMuster Readiness LLC

Customer experience

Satellite Tracker ISS Live Map

All ratings388 ratings
Positive92.8%
Neutral4.4%
Negative2.8%
Written reviews18 reviews
Positive50.0%
Neutral5.6%
Negative44.4%

Muster

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

In-app purchases

9 purchases

Satellite Tracker ISS Live Map

Subscriptions7
  • Premium Weekly3 Days trial$6.997 Days
  • Premium Weekly3 Days trial$7.997 Days
  • Premium Monthly$12.991 Month
Show 4 more
  • Premium Monthly$14.991 Month
  • Premium Yearly$39.991 Year
  • Premium Yearly$49.991 Year
  • Premium Yearly$59.991 Year
One-time2
  • Premium Lifetime$49.99
  • Premium Lifetime$59.99
None

Muster

No in-app purchases

Questions

Is Satellite Tracker ISS Live Map free?
Satellite Tracker ISS Live Map is free to download, with in-app purchases available.
Is Muster free?
Muster is free to download, with no in-app purchases.
Which has better reviews, Satellite Tracker ISS Live Map or Muster?
Muster is rated higher. Satellite Tracker ISS Live Map averages 4.7 out of 5 from 388 ratings, while Muster averages 5.0 from 2 ratings.
Do Satellite Tracker ISS Live Map or Muster have ads?
Satellite Tracker ISS Live Map shows ads; Muster does not.
Which is updated more often, Satellite Tracker ISS Live Map or Muster?
Satellite Tracker ISS Live Map ships an update monthly, and Muster every 2 days. Most recently, Satellite Tracker ISS Live Map was updated on October 17, 2026 and Muster on September 30, 2026.

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