Published by Navigational Algorithms on Jul 16, 2024

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Why should I report an Issue with Sight reduction?

  1. AppContacter will directly Email your issue/feedback to an apps's customer service once you report an issue and with lots of issues reported, companies will definitely listen to you.
  2. Pulling issues faced by users like you is a good way to draw attention of Navigational Algorithms to your problem using the strength of crowds.
  3. Importantly, customers can learn from other customers in case the issue is a common problem that has been solved before.
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About Sight reduction

1. Sight reduction is the process of deriving from a sight the information needed for establishing a line of position.

2. This app is a calculator to get the intercept from the assumed position of the observer AP(latitude, longitude), the geographical position of the celestial body observed, GP(Dec, GHA), and its corrected altitude Ho. - GPS location. ("Location" App permission must be allowed.

Sight reduction Customer Insights

1. Would be very handy if there was a time perameter in the LOP box.Does not appear to have instructions or nautical almanac.Works fine nowGreat app, but I have two points to mention.

2. Accurate fix.fix it please..Looks great on the surface.... No place to enter the time of the sight.

3. The work-around I use is to enter a negative value in some other APP and then copy/paste into the IC correction space.

4. DON'T BOTHERVery Helpful! ThanksIdeal for saving time plotting a fix or simply checking your work.

5. This app is useless for navigation because you can't specify the time at each sight.

6. Argh! 2) It's seemingly impossible to enter a negative IC (instrument correction).

7. 1) When I twist the smartphone (Samsung S-7) to horizontal all the previous LOPs disappear.

8. In conjunction with the Nautical Almanac app that I have this is a near perfect combination.

9. I'm not giving up my GPS units, but it sure is nice to have some old-school stuff around as a back-up.So easy to use.

10. Recommend using the developer's almanac app alongside this one.

11. So I have to re-enter all that data.

Steps to Troubleshoot & Fix Sight reduction Issues

1. Fix Sight reduction Not Working/Crashes/Errors/Unresponsive & Black/White screen:


  1. Restart Sight reduction: Restarting the app will resolve most errors.
  2. Update the Sight reduction App. Here is how:
    1. On Android goto PlayStore » Search for "Sight reduction" » Open Sight reduction » click "Update".
    2. On iPhone, goto AppStore » Your profile » Available Updates » Check for Sight reduction » click "UPDATE".
  3. Clear Sight reduction app cache: Clearing cached data will force your app to retrieve the latest data directly from Sight reduction servers.
    1. On Android, goto Settings » Apps » Select "Sight reduction" » click Storage » click "Clear Cache".
  4. Check Sight reduction app permissions. If any of these permissions required to use your device's features are disenabled, Sight reduction might not work.
  5. Uninstall and reinstall Sight reduction. If nothing else has worked, completely uninstall Sight reduction then reinstall.
  6. Restart your device. Last, restarting your device can often clear most problems causing Sight reduction not working


2. Fix Sight reduction Server issues & Internet Connection


  1. Check network connection: An unstable Internet will make Sight reduction be unable to connect to it's servers. Ensure your wi-fi is working then restart app.
  2. Disable VPN: VPN can cause connection errors and lead to Sight reduction not working. Make sure all VPNs are off
  3. Enable background data: When Background data is turned off, Sight reduction may not be able to connect to the Internet when running in the background.

Reported Issues