# Astrophysics II vs Aerospace Engineering Terms

The clearest difference is update cadence: Astrophysics II at every 5 months against Aerospace Engineering Terms's every 19 months. Aerospace Engineering Terms's advantage is price ($0.99 vs $2.99) and iOS requirement (12.0 vs 18.6). On ads, in-app purchases and device support there is nothing between them.

Astrophysics II costs $2.99 and Aerospace Engineering Terms $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Astrophysics II ships an update every 5 months, Aerospace Engineering Terms every 19 months. The most recent releases landed on October 22, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | Astrophysics II | Aerospace Engineering Terms |
| --- | --- | --- |
| Price | $2.99 | **$0.99** |
| Rating | **[4.3 (6 ratings)](https://appshunter.io/ios/app/astrophysics-ii/id525011116/reviews)** | — |
| Number of ratings | **6** | — |
| Positive reviews | 85.7% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 5 months** | Every 19 months |
| Monetization | Paid | — |
| Size | 68 MB | 26 MB |
| Requires iOS | 18.6 | **12.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Xavier Daxhelet](https://appshunter.io/developer/339056993) | [Polemics Applications LLC](https://appshunter.io/developer/482504032) |

## What reviewers say

### Astrophysics II

[App page](https://appshunter.io/ios/app/astrophysics-ii/id525011116)

Explore the fascinating world of stars with this educational application. It features over 60 screens of astronomical content, including detailed explanations and 3D animations. Ideal for teachers to use in classrooms, it covers topics from light and matter to stellar evolution and black holes.

**Highlights:** Covers stars and stellar evolution, Over 60 screens of content, More than 25 3D animations, Classroom projection features, Detailed topics on light and matter, Information on stellar systems, Includes physical and astronomical constants

**Features:** macOS Compatibility

**In-app purchases:** none


### Aerospace Engineering Terms

[App page](https://appshunter.io/ios/app/aerospace-engineering-terms/id1584558472)

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

**In-app purchases:** none


## Frequently asked questions

### Is Astrophysics II free?

Astrophysics II costs $2.99, with no in-app purchases.

### Is Aerospace Engineering Terms free?

Aerospace Engineering Terms costs $0.99, with no in-app purchases.

### Do Astrophysics II or Aerospace Engineering Terms have ads?

Neither Astrophysics II nor Aerospace Engineering Terms shows ads.

### Which is updated more often, Astrophysics II or Aerospace Engineering Terms?

Astrophysics II ships an update every 5 months, and Aerospace Engineering Terms every 19 months. Most recently, Astrophysics II was updated on October 22, 2026 and Aerospace Engineering Terms on October 15, 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.*