# Constellation Guide vs SkyScope

The clearest difference is update cadence: Constellation Guide at fortnightly against SkyScope's monthly. SkyScope's advantage is iOS requirement (15.0 vs 17.0). On price, rating, ratings volume and ads there is nothing between them.

Both are free to download. Constellation Guide sells 2 in-app purchases, starting at $9.99 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 Constellation Guide against 5.0 for SkyScope. Both are backed by a comparable volume of ratings — 2 and 1 respectively.

Constellation Guide ships an update fortnightly, SkyScope monthly. The most recent releases landed on October 10, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | Constellation Guide | SkyScope |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (2 ratings)](https://appshunter.io/ios/app/constellation-guide/id6759224274/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 | **Fortnightly** | Monthly |
| Monetization | Free with in-app purchases | Freemium |
| Size | 104 MB | 38 MB |
| Requires iOS | 17.0 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [PROBABILITY LLC](https://appshunter.io/developer/1482354660) | [skybringup](https://appshunter.io/developer/1841317670) |

## What reviewers say

### Constellation Guide

[App page](https://appshunter.io/ios/app/constellation-guide/id6759224274)

Explore the night sky with an AI-powered guide. Identify stars, constellations, and planets in real-time with AR overlays. Learn astronomy through stories and deep space exploration, all available offline.

**Highlights:** AI Sky Guide for astronomy questions, Deep Space Zoom into nebulae and galaxies, Astronomy Stories and Constellation Art, Time Travel to past and future sky views, AR Camera Mode for real-time identification, Offline sky mapping

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Monthly | $9.99 | per month |
| Pro Annual | $39.99 | 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 Constellation Guide free?

Constellation Guide 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, Constellation Guide or SkyScope?

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

### Do Constellation Guide or SkyScope have ads?

Neither Constellation Guide nor SkyScope shows ads.

### Which is updated more often, Constellation Guide or SkyScope?

Constellation Guide ships an update fortnightly, and SkyScope monthly. Most recently, Constellation Guide was updated on October 10, 2026 and SkyScope on October 7, 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.*