# Astrophysics I vs Trees & shrubs

The clearest difference is review sentiment: Trees & shrubs at 75% against Astrophysics I's 48%. Trees & shrubs also leads on iOS requirement (15.6 vs 18.6). Astrophysics I's advantage is update cadence (every 3 months vs every 12 months). On price, ads, in-app purchases and monetization model there is nothing between them.

Astrophysics I costs $3.99 and Trees & shrubs $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Astrophysics I ships an update every 3 months, Trees & shrubs every 12 months. Both last shipped on October 26, 2026.

## The numbers

| Metric | Astrophysics I | Trees & shrubs |
| --- | --- | --- |
| Price | $3.99 | $3.99 |
| Rating | **[4.4 (9 ratings)](https://appshunter.io/ios/app/astrophysics-i/id449455262/reviews)** | — |
| Number of ratings | **9** | — |
| Positive reviews | 48.5% of reviews | **75.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 months** | Every 12 months |
| Monetization | Paid | Paid |
| Size | 249 MB | 116 MB |
| Requires iOS | 18.6 | **15.6** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Xavier Daxhelet](https://appshunter.io/developer/339056993) | [Pierre-Olivier Templier](https://appshunter.io/developer/352355931) |

## What reviewers say

### Astrophysics I

[App page](https://appshunter.io/ios/app/astrophysics-i/id449455262)

Explore the solar system with over 90 screens and 40 3D animations explaining astrophysics concepts. Ideal for teachers to use in classrooms, it covers gravity, planetary details, and astronomical constants.

**Highlights:** Solar system coverage, Astrophysics explanations, 3D animations, Classroom projection feature, Detailed topic lists, Physical and astronomical constants

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

**In-app purchases:** none


### Trees & shrubs

[App page](https://appshunter.io/ios/app/trees-and-shrubs/id1242266951)

Identify European trees and shrubs with detailed photos and descriptions. Offline access allows for use during outdoor excursions. Features include a selection assistant, distribution maps, and personal note-taking.

**Highlights:** Offline identification, Detailed species photos, Selection assistant for identification, Distribution maps, Personal notes and favorites, Search by name

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

**In-app purchases:** none


## Frequently asked questions

### Is Astrophysics I free?

Astrophysics I costs $3.99, with no in-app purchases.

### Is Trees & shrubs free?

Trees & shrubs costs $3.99, with no in-app purchases.

### Do Astrophysics I or Trees & shrubs have ads?

Neither Astrophysics I nor Trees & shrubs shows ads.

### Which is updated more often, Astrophysics I or Trees & shrubs?

Astrophysics I ships an update every 3 months, and Trees & shrubs every 12 months. Most recently, Astrophysics I was updated on October 26, 2026 and Trees & shrubs on October 26, 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.*