# Spacecraft AR vs GudMem

The clearest difference is in-app purchases: Spacecraft AR at none against GudMem's 2. Spacecraft AR also leads on device support (3 vs 1) and iOS requirement (15.0 vs 17.0). GudMem's advantage is update cadence (every 2 days vs every 7 months). On price and ads there is nothing between them.

Both are free to download. GudMem sells 2 one-off in-app purchases. Spacecraft AR asks for nothing beyond the download.

Spacecraft AR ships an update every 7 months, GudMem every 2 days. The most recent releases landed on October 3, 2026 and September 27, 2026 respectively.

## The numbers

| Metric | Spacecraft AR | GudMem |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.1 (25 ratings)](https://appshunter.io/ios/app/spacecraft-ar/id1452909829/reviews)** | — |
| Number of ratings | **25** | — |
| Positive reviews | 53.3% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 7 months | **Every 2 days** |
| Monetization | Free | — |
| Size | 160 MB | 12 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Jet Propulsion Laboratory](https://appshunter.io/developer/347075767) | [Gud GmbH](https://appshunter.io/developer/6774667327) |

## What reviewers say

### Spacecraft AR

[App page](https://appshunter.io/ios/app/spacecraft-ar/id1452909829)

Explore the solar system with interactive 3D models of NASA spacecraft. View them in augmented reality, scaled to your environment, and learn about their missions. Perfect for aspiring astronauts, educators, and space lovers.

**Highlights:** Interactive 3D spacecraft models, Augmented reality viewing, True-to-life and adjustable scaling, Detailed mission information, In-app camera functionality, Explore Earth, Mars, and beyond

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

**In-app purchases:** none


### GudMem

[App page](https://appshunter.io/ios/app/gudmem/id6784577705)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Educator unlock | $9.99 | one-time |
| Unlock unlimited | $22.99 | one-time |


## Frequently asked questions

### Is Spacecraft AR free?

Spacecraft AR is free to download, with no in-app purchases.

### Is GudMem free?

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

### Do Spacecraft AR or GudMem have ads?

Neither Spacecraft AR nor GudMem shows ads.

### Which is updated more often, Spacecraft AR or GudMem?

Spacecraft AR ships an update every 7 months, and GudMem every 2 days. Most recently, Spacecraft AR was updated on October 3, 2026 and GudMem on September 27, 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.*