Comparison

Staslink vs NASA SpaceTime

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

Head to head
About

Staslink

Track the International Space Station and Starlink satellites with real-time live maps and HD video feeds from NASA. Get personalized reminders for optimal viewing times and explore the universe from an astronaut's perspective.

Highlights
  • Live ISS & Starlink camera feed from NASA
  • Real-time global tracking with Live Map
  • Reminders for upcoming satellite visits
  • Visibility predictions and statistics
  • HD video of Earth from ISS
  • Smart Tracking Engine
Features
Read full description

Satellites ISS & Star Tracker helps you identify the best time to catch a glimpse of International Space Station & Starlink satellites on your night sky. Input your location and tap through to find the best times to observe them near your area. Reminders can be set for upcoming launches and/or high visibility sightings around your location. The satellites & ISS routes in low Earth orbit can be discovered through the 'Live Map'. Track the Starlink Satellites & International Space Station in real-time with HD Live Map and Smart Tracking Engine. Explore the universe and outer space life under the astronaut perspective with Livestream videos directly from NASA. You can also have the chances to stargaze when tracking the orbits through live videos. Plan ahead your plan to catch the glimpse of ISS and SpaceX satellites on the night sky in your area with provided statistics & reminders. Satellites ISS & Star Tracker gives you access to the 24/7 Live HD video of the Earth & Starlink launch recorded directly by NASA. As the ISS station orbits with an average altitude of 250 miles (400 kilometers), you can follow its camera & explore all the Earth's surface within roughly 93 minutes. Launched 60 at a time, the Starlink is described as a "train" of lights as they gracefully move through our skies. With Google Maps integrated into the app, users can easily track the ISS and Starlink around the globe and monitor its movement. Satellites ISS & Star Tracker features: + Live camera feed of ISS & Starlink directly from NASA. + Track the ISS & Starlink around the globe with a Live Map. + Reminders for upcoming Starlink visits with visibility predictions. + Check the ISS & Starlink's live statistics to locate it more easily on the night sky. + Predicted ISS & Starlink location for users for better monitoring and planning at the night sky. Note: When the International Space Station is on the night side of Earth, the video image is black - this is normal. Please do not worry! Sometimes, the live video is not available due to transmission issues or because the crew is changing cameras. In such cases, you will usually have a blue or blank screen. In a few minutes the transmission should return back to normal, so just relax for a moment. This is not a problem with the app. Disclaimer: This app is not affiliated with neither NASA nor ISS nor Starlink or any space related platforms. All the videos are rights reserved by NASA, we do not own any of these videos. Terms of Use: http://vulcanlabs.co/terms-of-use/ Privacy Policy: http://vulcanlabs.co/privacy-policy/ Any questions? Contact us: support@vulcanlabs.com

About

NASA SpaceTime

Track the current time on Mars for NASA's Perseverance and Curiosity rovers. View mission event schedules and operational meetings. Supports Siri integration for quick time queries.

Highlights
  • Mars time display
  • Earth time display
  • Rover mission schedules
  • Operational meeting views
  • Siri integration
Read full description

Display Mars and Earth time for the NASA Perseverance and Curiosity Mars rovers. View the schedule of events and operational meetings in support of these missions.  Ask Siri: "What Sol is it on Mars?"

Screenshots

Staslink4 screens
NASA SpaceTime3 screens

Verdict

The call

The clearest difference is review sentiment: NASA SpaceTime at 100% against Staslink's 57%. NASA SpaceTime also leads on rating (5.0 vs 4.4) and in-app purchases (none vs 8). Staslink's advantage is ratings volume (20K vs 7). On price and iOS requirement 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. Staslink sells 8 in-app purchases, starting at $2.99 per 7 days. NASA SpaceTime asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

NASA SpaceTime holds the better App Store score, 5.0 against 4.4. That said, the two scores are not equally well evidenced: Staslink has 20K ratings behind it against 7, so its average is the more settled of the two. Written reviews point the same way: 57% of Staslink's written reviews are positive against 100% of NASA SpaceTime's.

UpkeepUpdate frequency

Staslink ships an update every 2 months, NASA SpaceTime every 4 weeks. The most recent releases landed on November 11, 2026 and November 3, 2026 respectively.

Scorecard8 real differences · 2 level
Staslink versus NASA SpaceTime: the parameters behind the verdict, then further details
ParameterStaslinkNASA SpaceTime
PriceFreeFree
Rating4.4 (20K ratings)5.0 (7 ratings) — better
Positive reviews56.6% of reviews100.0% of reviews — better
Number of ratings20K — better7
Update frequencyEvery 2 monthsEvery 4 weeks — better
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPodiPhone, iPad, iPod, Mac, Apple Watch — better
Requires iOS15.614.0 — better
Further details — not scored
Size98 MB38 MB
Age rating4+4+
DeveloperSMART WIDGET LABS COMPANY LIMITEDJet Propulsion Laboratory

Customer experience

Staslink

All ratings19,452 ratings
Positive84.8%
Neutral4.7%
Negative10.5%
Written reviews509 reviews
Positive56.6%
Neutral4.9%
Negative38.5%

NASA SpaceTime

All ratings6 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews3 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Bugs and requests

Staslink

Reported bugs

4 issues
  • App freezing and crashing
  • Incorrect satellite pass times
  • Location detection issues
  • Incompatibility with older devices

Requested features

4 requests
  • Ability to track specific satellites
  • Improved location selection and storage
  • Satellite pass notifications
  • 3D sky view for better satellite visualization

NASA SpaceTime

Not enough reviews yet to summarise bugs or requests.

In-app purchases

8 purchases

Staslink

Subscriptions5
  • Weekly Premium Tracking3 Days trial$2.997 Days
  • Weekly Freetrial3 Days trial$3.997 Days
  • Weekly Freetrial3 Days trial$4.997 Days
Show 2 more
  • Weekly3 Days trial$5.997 Days
  • Monthly Premium$12.991 Month
One-time3
  • Lifetime Premium$24.99
  • Lifetime$29.99
  • Lifetime$34.99
None

NASA SpaceTime

No in-app purchases

Questions

Is Staslink free?
Staslink is free to download, with in-app purchases available.
Is NASA SpaceTime free?
NASA SpaceTime is free to download, with no in-app purchases.
Which has better reviews, Staslink or NASA SpaceTime?
NASA SpaceTime is rated higher. Staslink averages 4.4 out of 5 from 20K ratings, while NASA SpaceTime averages 5.0 from 7 ratings.
Do Staslink or NASA SpaceTime have ads?
Staslink shows ads; NASA SpaceTime does not.
Which is updated more often, Staslink or NASA SpaceTime?
Staslink ships an update every 2 months, and NASA SpaceTime every 4 weeks. Most recently, Staslink was updated on November 11, 2026 and NASA SpaceTime on November 3, 2026.

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