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iOptron Optical Polar Scope

iOptron Optical Polar Scope

Pole Star Assistant

12 ratings
25 reviews
#156 in paid Utilities
🔧 Utilities
🔍 Reference
$1.99

Details

  • Released
  • Updated
  • October 10, 2012
  • October 24, 2025

Features

Developer

成城 徐
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About

This utility app assists in accurately aligning telescope mounts by showing the precise position of the Pole Star within the polar scope. It employs a sophisticated algorithm to account for various astronomical factors, ensuring sub-arcsecond accuracy for astrophotography and observation.

✓Pole Star position calculation
✓Sub-arcsecond accuracy algorithm
✓10-minute marker reticle
✓Supports Northern and Southern Hemispheres
✓Manual location entry option
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What's New in iOptron Optical Polar Scope

8.30

October 24, 2025

Added support for new iOS and iPadOS devices. Now requires iOS 18. Minor improvments.

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📉 156-30

Utilities

This app dropped -30 positions in Utilities chart.

Last updated on July 31, 2026.

User reviews

Most RecentHighest RatedLowest Rated

Not useful

Shows polar position that is not accurate. Its position varies at different times of day even if you are standing on the same position/location.
No.12982No.12982

Waste of money - DO NOT BUY, ABSOLUTELY USELESS.

Minimal function compared to other polar align apps. Installed and tested for less than 1 minute.. absolutely useless and I want my money back!
steed999steed999

UNA FREGATURA

Non serve per il collegamento alla montatura, mostra solo l’ora polare come altre app gratuite.
Francesco63839Francesco63839

Don’t use this anymore. Get ds align

This one is only for ioptron with very limited functionality. No new features after all these years. I use DS align now, support many many other mounts polar scope and so much more functionality. Even has a iwatch version.
Quantum333Quantum333

Do not buy - very weak functionality

It tells you where Polaris is located for your current time and location. But with no options or way to configure the display (other than English / Chinese). Other apps do this as well but with plenty of options for customization. It might be OK if it were free, but it is dismal at $1.99.
Physics2Physics2
See 20 more reviews

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FAQ

What is the main purpose of iOptron Optical Polar Scope?

iOptron Optical Polar Scope helps users accurately align their iOptron telescope mounts by showing the precise position of the Pole Star in the polar scope. This is crucial for long-exposure astrophotography and accurate tracking of celestial objects.

How accurate is the Pole Star calculation in iOptron Optical Polar Scope?

The app utilizes a sophisticated algorithm that accounts for various astronomical factors, achieving an overall accuracy of sub-0.1 arc-seconds. This high precision ensures reliable polar alignment for your telescope.

What reticle does iOptron Optical Polar Scope use?

The app features a 10-minute marker reticle, which is the same reticle used in iOptron telescope mounts manufactured since 2014. This ensures compatibility and ease of use with supported equipment.

Which iOptron mounts are specifically recommended for iOptron Optical Polar Scope?

The app is a must-have for users of iOptron SkyGuider Pro, iOptron SkyTracker Pro, SkyGuider, and SkyTracker. It is also very helpful for owners of any iOptron telescope mount.

Can iOptron Optical Polar Scope be used with non-iOptron mounts?

Yes, the app may be used with other brands of telescope or camera mounts that feature a similar polar scope reticle. This broadens its utility for a wider range of users.

Does iOptron Optical Polar Scope require an internet connection?

No human interaction is required when iOS devices can use location services normally. For iOS users, manual location entry is available if location services are unavailable.

What is the price of iOptron Optical Polar Scope?

iOptron Optical Polar Scope is available for a one-time purchase price of $1.99. This makes it an affordable tool for serious astrophotographers.

How often is iOptron Optical Polar Scope updated?

The app was last updated on October 24, 2025, indicating ongoing development and support. This suggests that users can expect continued improvements and bug fixes.