Polar Scope Align Pro

Polar Scope Align Pro

Scope alignment & astro tools

310 ratings
272 reviews
#56 in paid Utilities
🔧 Utilities
$4.99
In-App Purchases

Details

Released
March 4, 2015
Updated
October 23, 2026

Features

Polar Scope Align Pro screenshot #1 for iPhone
Polar Scope Align Pro screenshot #2 for iPhone
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Polar Scope Align Pro screenshot #7 for iPhone
Polar Scope Align Pro screenshot #8 for iPhone
Polar Scope Align Pro screenshot #9 for iPhone
Polar Scope Align Pro screenshot #10 for iPhone
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About

This app assists astronomers with precise polar alignment for telescopes, offering tools for various reticles and low-latitude accuracy. It also includes a comprehensive suite of astro tools, from object databases to calculators and weather reports.

✓Accurate polar alignment calculation
✓Support for numerous polar scope reticles
✓Daytime/no polarscope alignment tool
✓Deep Space Object database
✓Astrophotography calculators
✓World astro-weather report
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What users say about Polar Scope Align Pro

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+1

What's New in Polar Scope Align Pro

7.3

October 23, 2026

• Mount WiFi Control now supports Pegasus NYX alongside iOptron mounts, with experimental ZWO and OnStep support. • Major DSO Database update: ◦ Redesigned object details show distance from the Moon and stay up to date as time passes. ◦ Altitude charts can show the Moon and the time an object spends at a useful altitude in darkness. Tap or drag to inspect another time. ◦ Mark objects as observed, add notes, copy details and share charts. Notes can be printed, exported or backed up for import. ◦ Sort by rise, set or transit time, or by time above a useful altitude, directly from the object list. ◦ Added Ceres, Pallas, Vesta and Juno, plus brightness or opacity classes for Sharpless and Barnard objects. ◦ Show objects on a sky map even when they are below the horizon, and switch between horizon and equatorial charts. • Sky maps gain optional coordinate grids, constellation lines and full names, adjustable labels and natural star colours. • Camera Azimuth Calibration now switches to Night View after dusk, with a Brighten slider and manual or automatic focus. • Daytime Alignment shows clearer coordinates, corrections and direction arrows. • Location dropdown now places favourites before recent locations and recognises nearby saved favourites. • Xasteria weather improvements: ◦ Rain and snow icons can show precipitation amounts. ◦ Satellite All Sky Map gains Full Night and Remaining Tonight views. ◦ Weather Multi widget can show a second location and start its forecast now or tonight. ◦ Fixed widget appearance with tinted icons. • Improved night mode for maps and when launching or reopening the app. A quick rating or review on the App Store is always appreciated. For suggestions or feedback: http://astro.ecuadors.net

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Subscriptions & In-App Purchases

$9.99

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Top Paid

📉 56-2

Utilities

This app dropped -2 positions in Utilities chart.

Last updated on October 29, 2026.

User reviews

Works

Thanks for the feedback, understand the logic used now.

Response from developer

Hi. Sorry for the trouble. The app tries to make it clear when launching - the main app window is the polar scope view, which would appear "frozen" (the polaris marker takes 24 hours to go around the centre, so movement is imperceptible). The polar alignment method that "moves" with the phone is the daytime/no polar scope, which is the Sun icon at the bottom. The in-app help will also explain the differences of the various polar alignemnt tools. If you still have issues, you can always message the developer using the contact form at astro.ecuadors.net or the listed email.

Daytime Alignment bug in v7.2 (Az/Alt miscalculation)

The main reticle calculation is correct, but since the v7.2 update, the "Daytime Alignment" tool displays incorrect target values (e.g., Az: 166.5°, Alt: 71.5° at 34.67°N in Japan).

Even after a clean re-installation, the target Azimuth and Altitude in Daytime mode remain broken. It seems like a sensor coordinate processing bug in the latest version. Please check and fix this in the next update.
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Response from developer

Hello. Could you please check what the "Orientation: " selector at the top of the Daytime tool is showing? It should say "Device TOP" if you are trying to use it via the classic method, you can press the orientation and choose it if not (or select one of the 3 supported ones - where a different part of the phone points to the north celestial pole). Just to make it clear, the Alt: Az: at the bottom is where you are pointing based on the selected orientation, not where the target is. You can also message me directly at ecuador_gr [at] hotmail.com for help.

Perfect apps, lots of information.

Highly accuracy, include many necessary sky observation information.
If world tide time table could be included, it would be the best❣️
Highly recommend!
If there is tide time available, that would be perfect apps👊

Tool Rich Environment

Love the various tools included in the app. Up front I expected this to be used just for polar alignment to support an older Celestron Polar finder. Instead…I find myself using the calculator section with various eyepiece calculators. Then there is the push-to capability that has numerous catalogs like Messier, Caldwell, Herschel, etc. Any possibility of designing this app to be able to be used in conjunction with other apps like Stellarium? It would be cool if the push-to reticle showed up on the Stellarium screen.
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Response from developer

Thanks for the feedback. Stellarium probably not, but there is something a bit similar in the horizon, possibly to be in development in the next couple of months or so... If you are interested, you can message me via astro.ecuadors.net, beta testers get early development versions.

Worked once

Was fantastic, one time. Since buying the app, the main polar alignment window is always permanently frozen. The star hop function works erc. But the main polar alignment screen does not. Tried uninstalling and reinstalling. Nothing.

Developer apps

User experience

🐞

Reported Bugs

2 issues

Weather Updates Not Working

Bug

Compass Deflected by Mount

Bug
✨

Requested Features

2 requests

Add Observation Recording Feature

Feature

Add Push To Option for DSO Objects

Feature

FAQ

What does Polar Scope Align Pro do?

This app provides highly accurate polar alignment for telescopes, even in lower latitudes, by calculating the precise position of celestial poles for your location. It also functions as a comprehensive astronomy toolkit, offering features like a deep space object database, numerous calculators for observing and astrophotography, and an astro-weather report.

How accurate is the polar alignment?

The app offers accurate polar alignment by calculating the position of Polaris or Sigma Octantis, correcting for atmospheric refraction and other astronomical effects. It aims for precision comparable to scientific software, distinguishing itself from simpler alignment apps.

Is Polar Scope Align Pro free to use?

Yes, all core features and updates are provided for free indefinitely. The only in-app purchases available are voluntary donations, often referred to as a 'tip jar', allowing users to support the developer.

What devices is Polar Scope Align Pro compatible with?

The app utilizes your phone's GPS and time/date, and can be used with a wide variety of polar scope reticles from different telescope manufacturers. It is designed to be a versatile tool for astronomers using various equipment.

What are the main use cases for this app?

The primary use case is achieving precise polar alignment for telescopes, crucial for long-exposure astrophotography and accurate tracking. Additionally, it serves as a valuable resource for general astronomy observation, object finding, and planning sessions with its integrated databases and calculators.