# Constellation Guide vs Sky Map

The clearest difference is review sentiment: Constellation Guide at 100% against Sky Map's 0%. Constellation Guide also leads on rating (5.0 vs 1.0) and update cadence (fortnightly vs every 5 weeks). On price, ratings volume, ads and in-app purchases there is nothing between them.

Both are free to download. Constellation Guide sells 2 in-app purchases, starting at $9.99 per month and Sky Map sells 3 in-app purchases, starting at $7.99 per month. Whichever you choose, the download price is not the number that matters.

Constellation Guide holds the better App Store score, 5.0 against 1.0. Both are backed by a comparable volume of ratings — 2 and 1 respectively. Written reviews point the same way: 100% of Constellation Guide's written reviews are positive against 0% of Sky Map's.

Constellation Guide ships an update fortnightly, Sky Map every 5 weeks. The most recent releases landed on October 10, 2026 and October 20, 2026 respectively.

## The numbers

| Metric | Constellation Guide | Sky Map |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/constellation-guide/id6759224274/reviews)** | [1.0 (1 ratings)](https://appshunter.io/ios/app/sky-map-star-tracker/id6762576507/reviews) |
| Number of ratings | **2** | 1 |
| Positive reviews | **100.0% of reviews** | 0.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 5 weeks |
| Monetization | Free with in-app purchases | Freemium |
| Size | 104 MB | 13 MB |
| Requires iOS | 17.0 | 17.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [PROBABILITY LLC](https://appshunter.io/developer/1482354660) | [Nguyen Anh](https://appshunter.io/developer/882187560) |

## 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 |


### Sky Map

[App page](https://appshunter.io/ios/app/sky-map-star-tracker/id6762576507)

Identify stars, constellations, planets, and satellites in real time by pointing your device at the sky. Explore celestial objects, track satellites, and discover what's visible tonight with AR overlays and time travel features.

**Highlights:** Real-time sky tracking with AR, Instant object identification, Augmented reality overlays, Time travel sky view, Satellite tracking (ISS), Tonight's sky highlights, Night mode (red-light filter)

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Sky Map Premium Monthly | $7.99 | per month |
| Sky Map Premium Yearly | $34.99 | per year |
| Sky Map Premium Lifetime | $49.99 | one-time |


## Frequently asked questions

### Is Constellation Guide free?

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

### Is Sky Map free?

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

### Which has better reviews, Constellation Guide or Sky Map?

Constellation Guide is rated higher. Constellation Guide averages 5.0 out of 5 from 2 ratings, while Sky Map averages 1.0 from 1 ratings.

### Do Constellation Guide or Sky Map have ads?

Neither Constellation Guide nor Sky Map shows ads.

### Which is updated more often, Constellation Guide or Sky Map?

Constellation Guide ships an update fortnightly, and Sky Map every 5 weeks. Most recently, Constellation Guide was updated on October 10, 2026 and Sky Map on October 20, 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.*