# Space 4D+ vs ARPlanets 2

The clearest difference is in-app purchases: Space 4D+ at none against ARPlanets 2's 1. Space 4D+ also leads on ratings volume (46 vs 15) and iOS requirement (11.0 vs 17.0). ARPlanets 2's advantage is review sentiment (57% vs 37%). On price, rating, update cadence and ads there is nothing between them.

Both are free to download. ARPlanets 2 sells 1 one-off in-app purchase. Space 4D+ asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 3.4 for Space 4D+ against 3.3 for ARPlanets 2. Both are backed by a comparable volume of ratings — 46 and 15 respectively. Written reviews are what separate them: 37% of Space 4D+'s written reviews are positive against 57% of ARPlanets 2's.

Space 4D+ ships an update every 2 months, ARPlanets 2 every 6 weeks. The most recent releases landed on October 2, 2026 and September 27, 2026 respectively.

## The numbers

| Metric | Space 4D+ | ARPlanets 2 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.4 (46 ratings)](https://appshunter.io/ios/app/space-4d-plus/id1018109847/reviews)** | [3.3 (15 ratings)](https://appshunter.io/ios/app/arplanets-2/id1387711637/reviews) |
| Number of ratings | **46** | 15 |
| Positive reviews | 36.8% of reviews | **57.1% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 6 weeks** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 300 MB | 423 MB |
| Requires iOS | **11.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Octagon Studio Ltd](https://appshunter.io/developer/998405180) | [Daniele Citi](https://appshunter.io/developer/1187632258) |

## What reviewers say

### Space 4D+

[App page](https://appshunter.io/ios/app/space-4d-plus/id1018109847)

Explore the wonders of space with augmented reality flashcards. This app brings planets, satellites, and space missions to life with interactive 3D models and informative facts. Experience space like never before, engaging for both children and adults.

**Highlights:** Augmented reality space exploration, Interactive 3D models of celestial bodies, Informative facts about planets and missions, Engaging for all ages, Scans printed space cards

**In-app purchases:** none


### ARPlanets 2

[App page](https://appshunter.io/ios/app/arplanets-2/id1387711637)

Explore the augmented reality Solar System with interactive 3D models and intuitive gestures. Learn basic and advanced astronomy concepts through engaging AR lessons.

**Highlights:** Augmented reality Solar System exploration, Interactive 3D model manipulation, Discover celestial body details, AR-based astronomy lessons, User-friendly interface

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Full Access AR | $1.99 | one-time |


## Frequently asked questions

### Is Space 4D+ free?

Space 4D+ is free to download, with no in-app purchases.

### Is ARPlanets 2 free?

ARPlanets 2 is free to download, with in-app purchases available.

### Which has better reviews, Space 4D+ or ARPlanets 2?

Space 4D+ is rated higher. Space 4D+ averages 3.4 out of 5 from 46 ratings, while ARPlanets 2 averages 3.3 from 15 ratings.

### Do Space 4D+ or ARPlanets 2 have ads?

Neither Space 4D+ nor ARPlanets 2 shows ads.

### Which is updated more often, Space 4D+ or ARPlanets 2?

Space 4D+ ships an update every 2 months, and ARPlanets 2 every 6 weeks. Most recently, Space 4D+ was updated on October 2, 2026 and ARPlanets 2 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.*