# StarMap 3D+ Plus vs Mega Constellations

The clearest difference is price: Mega Constellations at Free against StarMap 3D+ Plus's $2.99. Mega Constellations also leads on update cadence (every 5 days vs every 5 weeks) and rating (5.0 vs 4.8). StarMap 3D+ Plus's advantage is ratings volume (6.8K vs 1) and chart position (#44 vs unranked). On ads, in-app purchases, device support and iOS requirement there is nothing between them.

Mega Constellations is free to download; StarMap 3D+ Plus costs $2.99 up front. StarMap 3D+ Plus sells 1 one-off in-app purchase and Mega Constellations sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Mega Constellations holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: StarMap 3D+ Plus has 6.8K ratings behind it against 1, so its average is the more settled of the two.

StarMap 3D+ Plus ships an update every 5 weeks, Mega Constellations every 5 days. The most recent releases landed on October 2, 2026 and September 22, 2026 respectively.

## The numbers

| Metric | StarMap 3D+ Plus | Mega Constellations |
| --- | --- | --- |
| Price | $2.99 | **Free** |
| Rating | [4.8 (6.8K ratings)](https://appshunter.io/ios/app/starmap-3d-plus-plus/id351986992/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/mega-constellations/id1598820453/reviews)** |
| Number of ratings | **6.8K** | 1 |
| Positive reviews | 86.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Every 5 days** |
| Monetization | Free with in-app purchases | **Free** |
| Best chart rank | **#44** | — |
| Size | 576 MB | 16 MB |
| Requires iOS | 16.6 | **15.0** |
| Devices | iPhone, iPad, Apple Watch | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Sanville Software](https://appshunter.io/developer/324038410) | [Hanno Rein](https://appshunter.io/developer/325840976) |

## What reviewers say

### StarMap 3D+ Plus

[App page](https://appshunter.io/ios/app/starmap-3d-plus-plus/id351986992)

**Currently charting:** #44 Top Paid · Education (US App Store)

Explore the cosmos with a portable star atlas. Identify planets, constellations, and deep sky objects using your device's sensors. Features detailed information and 3D visualizations for both beginners and advanced astronomers.

**Highlights:** Real-time satellite tracking (ISS, Hubble), Extensive star and deep sky object database, Detailed constellation information and lines, Location-based celestial object identification, 3D universe visualization, Adjustable date and time for celestial viewing

**Features:** macOS Compatibility, Apple Watch app, iMessage stickers

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| More Stars | $1.99 | one-time |

**What reviewers like**

- 🌟 Excellent star mapping and identification
- 🔍 Detailed information on celestial objects
- 👍 Easy to use and navigate
- 🔭 Helpful for amateur astronomers
- 🌍 Works well across locations

**What reviewers complain about**

- 🐛 Occasional tracking/alignment issues
- 🔍 Lack of detailed instructions/guides
- 🔒 Privacy concerns regarding data collection
- 🎨 Dislike for cartoon-style constellation art

**Reported bugs**

- App crashes or freezes on launch
- Incorrect moon and planet positioning
- Inconsistent performance after updates

**Requested features**

- More detailed deep sky object representations
- Improved tracking and compass accuracy
- Addition of educational content and tutorials
- Customization options for constellation art


### Mega Constellations

[App page](https://appshunter.io/ios/app/mega-constellations/id1598820453)

Explore the visual impact of large satellite networks on the night sky. This simulator shows how current and planned mega-constellations affect stargazing based on your location, time, and date.

**Highlights:** Simulates mega-constellation orbits, Visualizes impact on stargazing, Adjustable location, time, and date, Explores effects on astronomy, Shows current and planned constellations

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Developer Appreciation Coffee | $1.99 | one-time |


## Frequently asked questions

### Is StarMap 3D+ Plus free?

StarMap 3D+ Plus costs $2.99, and also offers in-app purchases.

### Is Mega Constellations free?

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

### Which has better reviews, StarMap 3D+ Plus or Mega Constellations?

Mega Constellations is rated higher. StarMap 3D+ Plus averages 4.8 out of 5 from 6.8K ratings, while Mega Constellations averages 5.0 from 1 ratings.

### Do StarMap 3D+ Plus or Mega Constellations have ads?

Neither StarMap 3D+ Plus nor Mega Constellations shows ads.

### Which is updated more often, StarMap 3D+ Plus or Mega Constellations?

StarMap 3D+ Plus ships an update every 5 weeks, and Mega Constellations every 5 days. Most recently, StarMap 3D+ Plus was updated on October 2, 2026 and Mega Constellations on September 22, 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.*