# CN vs SkyScope

The clearest difference is update cadence: SkyScope at every 4 weeks against CN's every 3 months. SkyScope also leads on iOS requirement (15.0 vs 18.0). On price, rating, ratings volume and ads there is nothing between them.

Both are free to download. CN sells 2 in-app purchases, starting at $2.99 per month and SkyScope sells 2 in-app purchases, starting at $1.99 per 7 days. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 5.0 for CN against 5.0 for SkyScope. Both are backed by a comparable volume of ratings — 2 and 1 respectively.

CN ships an update every 3 months, SkyScope every 4 weeks. The most recent releases landed on October 7, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | CN | SkyScope |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (2 ratings)](https://appshunter.io/ios/app/cn-235-planning-reference/id1624277893/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/skyscope-night-sky-guide/id6765678096/reviews) |
| Number of ratings | **2** | 1 |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 4 weeks** |
| Monetization | Free with in-app purchases | Freemium |
| Size | 5 MB | 39 MB |
| Requires iOS | 18.0 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Michael Eovine](https://appshunter.io/developer/1624277895) | [skybringup](https://appshunter.io/developer/1841317670) |

## What reviewers say

### CN

[App page](https://appshunter.io/ios/app/cn-235-planning-reference/id1624277893)

This app provides takeoff and landing data for the CN-235M aircraft. Users can input variables to compute data for reference. It is crucial to use the official flight manual for actual flight planning.

**Highlights:** Takeoff and landing data computation, CN-235M aircraft specific, Variable input for calculations, Reference data provided, Supports iPhone and iPad

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlimited access | $2.99 | per month |
| Unlimited Access | $29.99 | per year |


### SkyScope

[App page](https://appshunter.io/ios/app/skyscope-night-sky-guide/id6765678096)

Identify stars and constellations from photos using AI. Explore celestial objects, compare matches, and learn astronomy facts. Offers free basic identification with an optional premium upgrade for more detailed context.

**Highlights:** AI-assisted photo identification, Constellation and star naming, Astronomy facts, Object comparison, Exploration tab for celestial bodies, Observation context

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Premium | $1.99 | per 7 days |
| Lifetime Premium | $6.99 | one-time |


## Frequently asked questions

### Is CN free?

CN is free to download, with in-app purchases available.

### Is SkyScope free?

SkyScope is free to download, with in-app purchases available.

### Which has better reviews, CN or SkyScope?

CN and SkyScope are both rated 5.0 out of 5 on the App Store, from 2 and 1 ratings respectively.

### Do CN or SkyScope have ads?

Neither CN nor SkyScope shows ads.

### Which is updated more often, CN or SkyScope?

CN ships an update every 3 months, and SkyScope every 4 weeks. Most recently, CN was updated on October 7, 2026 and SkyScope on October 28, 2026.

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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.*