# Polar Scope Align vs iOptron iPolar Mobile

The clearest difference is review sentiment: Polar Scope Align at 91% against iOptron iPolar Mobile's 0%. Polar Scope Align also leads on price (Free vs $0.99) and rating (4.7 vs 2.0). iOptron iPolar Mobile's advantage is in-app purchases (none vs 3) and ads (none vs shown). On device support and iOS requirement there is nothing between them.

Polar Scope Align is free to download; iOptron iPolar Mobile costs $0.99 up front. Polar Scope Align sells 3 one-off in-app purchases. iOptron iPolar Mobile asks for nothing beyond the download.

Polar Scope Align holds the better App Store score, 4.7 against 2.0. That said, the two scores are not equally well evidenced: Polar Scope Align has 173 ratings behind it against 4, so its average is the more settled of the two. Written reviews point the same way: 91% of Polar Scope Align's written reviews are positive against 0% of iOptron iPolar Mobile's.

## The numbers

| Metric | Polar Scope Align | iOptron iPolar Mobile |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| Rating | **[4.7 (173 ratings)](https://appshunter.io/ios/app/polar-scope-align/id970157965/reviews)** | [2.0 (4 ratings)](https://appshunter.io/ios/app/ioptron-ipolar-mobile/id6470996795/reviews) |
| Number of ratings | **173** | 4 |
| Positive reviews | **91.4% of reviews** | 0.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 6 weeks | — |
| Monetization | **Free with in-app purchases** | Paid |
| Size | 24 MB | 1 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Dimitrios Kechagias](https://appshunter.io/developer/970157964) | [成城 徐](https://appshunter.io/developer/564078964) |

## What reviewers say

### Polar Scope Align

[App page](https://appshunter.io/ios/app/polar-scope-align/id970157965)

This app calculates the precise position of celestial poles in your telescope's polar scope reticle for accurate alignment. It supports a wide range of reticles and corrects for atmospheric refraction, offering precision even at lower latitudes. Features include night mode, moon phase, and astronomical databases.

**Highlights:** Polaris/Sigma Octantis position calculation, Atmospheric refraction correction, Reticle centering error correction, Supports numerous reticle types, Red-color night mode, Moon phase and astronomical databases

**Features:** Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Tip 1x | $0.99 | one-time |
| Tip 4x | $3.99 | one-time |
| Tip 10x | $9.99 | one-time |

**What reviewers like**

- 🎯 Extensive reticle options for various telescope mounts
- 👍 User-friendly and intuitive interface
- 🆓 Powerful free version with no popup ads
- 🔴 Red night vision mode preserves dark adaptation
- 📍 Accurate GPS-based location detection

**What reviewers complain about**

- 🐛 Inconsistent accuracy with metal mounts/tripods
- 📱 Font size too small for comfortable reading
- 🎯 Center dot in reticle obscures precise alignment
- 📍 Limited effectiveness for southern hemisphere (Sigma Octantis is dim)
- ❓ Steep learning curve for beginners without proper guidance

**Reported bugs**

- Date and time dial do not match correctly
- GMT and LST times appear to be switched
- App crashes or fails to initialize for some users
- Alignment accuracy varies inconsistently between sessions
- Location detection issues with cell tower vs GPS

**Requested features**

- Online video tutorials demonstrating all features
- Remove or reduce center dot size in reticle
- Larger, bolder font options for better readability
- Brighter star options for southern hemisphere alignment
- Smaller ad button or ad customization


### iOptron iPolar Mobile

[App page](https://appshunter.io/ios/app/ioptron-ipolar-mobile/id6470996795)

This utility app assists users in polar aligning their telescope mounts quickly and efficiently. It connects to a specific portable computer and camera for optimal results.

**Highlights:** Polar alignment assistance, Connects to iPolar camera, Works with iMate portable computer, Quick alignment method, Telescope mount optimization

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Polar Scope Align free?

Polar Scope Align is free to download, with in-app purchases available.

### Is iOptron iPolar Mobile free?

iOptron iPolar Mobile costs $0.99, with no in-app purchases.

### Which has better reviews, Polar Scope Align or iOptron iPolar Mobile?

Polar Scope Align is rated higher. Polar Scope Align averages 4.7 out of 5 from 173 ratings, while iOptron iPolar Mobile averages 2.0 from 4 ratings.

### Do Polar Scope Align or iOptron iPolar Mobile have ads?

Polar Scope Align shows ads; iOptron iPolar Mobile does not.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*