# Math Orbs vs 勤廬英文學習

The clearest difference is price: 勤廬英文學習 at Free against Math Orbs's $0.99. Math Orbs's advantage is iOS requirement (13.0 vs 16.0). On update cadence, ads, in-app purchases and device support there is nothing between them.

勤廬英文學習 is free to download; Math Orbs costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Math Orbs ships an update weekly, 勤廬英文學習 every 4 days. The most recent releases landed on October 19, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | Math Orbs | 勤廬英文學習 |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/math-orbs/id6475911131/reviews)** | — |
| Number of ratings | **2** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Weekly | **Every 4 days** |
| Monetization | Paid | — |
| Size | 72 MB | 6 MB |
| Requires iOS | **13.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Knowledge Vortex, LLC](https://appshunter.io/developer/1725396723) | [JUNG TSAN HSU](https://appshunter.io/developer/1890028155) |

## What reviewers say

### Math Orbs

[App page](https://appshunter.io/ios/app/math-orbs/id6475911131)

This app offers Grade 1-6 algebra practice for children, allowing parents to track progress and identify areas of difficulty. It features interactive quests, collectible orbs, and a virtual scratchpad for calculations, making learning engaging and eliminating the need for workbooks.

**Highlights:** Grade 1-6 algebra practice, Parental progress tracking, Identify areas of struggle, Interactive quests, Collectible orbs, Virtual scratchpad

**Features:** Vision Pro support

**In-app purchases:** none


### 勤廬英文學習

[App page](https://appshunter.io/ios/app/id6770361116)

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

**In-app purchases:** none


## Frequently asked questions

### Is Math Orbs free?

Math Orbs costs $0.99, with no in-app purchases.

### Is 勤廬英文學習 free?

勤廬英文學習 is free to download, with no in-app purchases.

### Do Math Orbs or 勤廬英文學習 have ads?

Neither Math Orbs nor 勤廬英文學習 shows ads.

### Which is updated more often, Math Orbs or 勤廬英文學習?

Math Orbs ships an update weekly, and 勤廬英文學習 every 4 days. Most recently, Math Orbs was updated on October 19, 2026 and 勤廬英文學習 on October 12, 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.*