Sputnik!

Name: Sputnik!
Rating: 4.8 (721 reviews)
Author: Applicate Ltd

ISS, Starlink & Satellites

Free · In‑App Purchases · Designed for iPhone

721 Ratings
Ages

4+
Years
Category

Utilities
Developer

Applicate Ltd
Language

EN
English
Size

35.2
MB

Sputnik! is an easy to use tool for predicting when the International Space Station will pass by your location or when a bright satellite will be visible in the skies above. Sputnik! features: - Predictions of satellite and ISS sightings accurate to the second. - Detection of Starlink satellite trains. - Second by second countdown to the satellite sighting. - Set reminders of upcoming satellite sightings. - Displays compass direction and elevation for your device to easily find the part of the sky where the sighting will occur (requires capable device). - Rotate your device to landscape orientation to show exactly where the satellite will pass in the night sky. - Share sightings via Twitter, Facebook, Mail, Messages and others. - Automatic download of up to date satellite orbital data. - Offline calculations, no need to be connected to the internet once orbital data has been downloaded. - Input your location automatically by GPS, select from a map or enter coordinates manually. - Save your favorite places for easy access. - Audio cues for the last seconds before the satellite passes by. Sputnik! on Apple Watch: - Easily find the next and last sighting at your current location. * Sputnik! is ad-supported *

Ratings & Reviews

4.8

out of 5

721 Ratings

It's Kept Up With Newer Satellite Technology
01/21/2024

Jmf 9
For several years, I enjoyed using Satellite! to reliably predict the appearance of Iridium flares from the now non-existent Iridium satellites. After they disappeared I thought the app had outlived its usefulness. I was wrong. I soon found that I could now use Satellite! to view the International Space Station, the Chinese Space Station Tiangong, the Hubble Telescope, and now even the newer Starlink Satellites with the same pinpoint accuracy! It’s like Satellite! has reinvented itself! Great app!!!
It's Kept Up With Newer Satellite Technology
01/21/2024

Jmf 9

For several years, I enjoyed using Satellite! to reliably predict the appearance of Iridium flares from the now non-existent Iridium satellites. After they disappeared I thought the app had outlived its usefulness. I was wrong. I soon found that I could now use Satellite! to view the International Space Station, the Chinese Space Station Tiangong, the Hubble Telescope, and now even the newer Starlink Satellites with the same pinpoint accuracy! It’s like Satellite! has reinvented itself! Great app!!!
Unforgettable moments
12/30/2016

BUCKSK1
I've use this app to track and I radium player out of specific time while camping, took a whole group of friends down to the beach and do exactly the trajectory and direction to look at and everyone was amazed. I really appreciate the hard work of the app developer my only feedback would be optional push notifications for significant, impressive, magnitude 7+ events near me, preferably within a time window i.e. 4-10pm. Thanks!
Unforgettable moments
12/30/2016

BUCKSK1

I've use this app to track and I radium player out of specific time while camping, took a whole group of friends down to the beach and do exactly the trajectory and direction to look at and everyone was amazed. I really appreciate the hard work of the app developer my only feedback would be optional push notifications for significant, impressive, magnitude 7+ events near me, preferably within a time window i.e. 4-10pm. Thanks!
Was good, now refuses to update satellite data. Also, strange error message.
07/16/2023

AstroPaul
This used to be one of my favorite ISS spotting apps. However, it now refuses to update the satellite data on iPads and iPhones alike, from iOS 12-16 and iPad OS 15-16. Going to Settings and tapping on Update does NOTHING. It continues to report Outdated. And, yes, WiFi is on and working. The Sputnik! app is the latest version. On an iPad 9, iOS 16.5.1(c), it alerts me: “Warning Satellite data has never been downloaded”, but does not load it automatically as it is supposed to — and used to. The Update button doesn't work there, either. On an iPhone SE, iOS 15.7.7, when I select any of the Satellite Sightings choices, it reports: “ERROR. Null check operator used on a null value”.
Was good, now refuses to update satellite data. Also, strange error message.
07/16/2023

AstroPaul

This used to be one of my favorite ISS spotting apps. However, it now refuses to update the satellite data on iPads and iPhones alike, from iOS 12-16 and iPad OS 15-16. Going to Settings and tapping on Update does NOTHING. It continues to report Outdated. And, yes, WiFi is on and working. The Sputnik! app is the latest version. On an iPad 9, iOS 16.5.1(c), it alerts me: “Warning Satellite data has never been downloaded”, but does not load it automatically as it is supposed to — and used to. The Update button doesn't work there, either. On an iPhone SE, iOS 15.7.7, when I select any of the Satellite Sightings choices, it reports: “ERROR. Null check operator used on a null value”.
What’s “Enters Earth’s shadow” mean?
05/02/2022

Starlinkgazer
This app needs more reference information. Are satellites visible when they ENTER Earth’s shadow? Or when they LEAVE Earth’s shadow?Why would I want to look for a satellite that rises at 10° and then enters the shadow in a few seconds?Following this app faithfully for two years, I have been able to see less than half of what is shown on the schedule. This “shadow” mystery might be the reason.Also, the feature where you need to turn your device sideways or landscape to see the satellite path or hear a beeping countdown needs to be explained somewhere. Finally, the feature to show device orientation does not seem to correspond to the actual elevation. In the settings, it says to adjust the orientation by 90° if you are recording video, but not why, or what that means.
What’s “Enters Earth’s shadow” mean?
05/02/2022

Starlinkgazer

This app needs more reference information. Are satellites visible when they ENTER Earth’s shadow? Or when they LEAVE Earth’s shadow?Why would I want to look for a satellite that rises at 10° and then enters the shadow in a few seconds?Following this app faithfully for two years, I have been able to see less than half of what is shown on the schedule. This “shadow” mystery might be the reason.Also, the feature where you need to turn your device sideways or landscape to see the satellite path or hear a beeping countdown needs to be explained somewhere. Finally, the feature to show device orientation does not seem to correspond to the actual elevation. In the settings, it says to adjust the orientation by 90° if you are recording video, but not why, or what that means.