# 小行星 vs 榫卯结构3D

The clearest difference is price: 小行星 at Free against 榫卯结构3D's $0.99. 榫卯结构3D's advantage is iOS requirement (12.0 vs 15.0). On ads, in-app purchases and device support there is nothing between them.

小行星 is free to download; 榫卯结构3D costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | 小行星 | 榫卯结构3D |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| Positive reviews | 61.1% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 weeks | — |
| Monetization | Free with in-app purchases | — |
| Size | 95 MB | 54 MB |
| Requires iOS | 15.0 | **12.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [BOOKR Reading](https://appshunter.io/developer/1763993123) | [北京才牛图科技有限公司](https://appshunter.io/developer/1556885180) |

## What reviewers say

### 小行星

[App page](https://appshunter.io/ios/app/id6755675052)

This app offers daily graded English reading materials for students, categorized by Lexile levels. It includes articles written by experts, read by professional voice actors, and covers topics relevant to major English proficiency tests. Features like vocabulary learning and speaking practice aim to comprehensively improve language skills.

**Highlights:** Daily updated reading content, Lexile level grading (L1-L5), Expert-written articles, Professional audio narration, Vocabulary learning, Post-reading exercises, Speaking practice

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

**In-app purchases:** none


### 榫卯结构3D

[App page](https://appshunter.io/ios/app/3d/id6784708800)

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

**In-app purchases:** none


## Frequently asked questions

### Is 小行星 free?

小行星 is free to download, with no in-app purchases.

### Is 榫卯结构3D free?

榫卯结构3D costs $0.99, with no in-app purchases.

### Do 小行星 or 榫卯结构3D have ads?

Neither 小行星 nor 榫卯结构3D shows ads.

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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.*