# 青山美語 vs Math Orbs

The clearest difference is price: 青山美語 at Free against Math Orbs's $0.99. Math Orbs's advantage is update cadence (weekly vs every 7 months) and iOS requirement (13.0 vs 15.0). On ads, in-app purchases and device support there is nothing between them.

青山美語 is free to download; Math Orbs costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

青山美語 ships an update every 7 months, Math Orbs weekly. The most recent releases landed on October 16, 2026 and October 19, 2026 respectively.

## The numbers

| Metric | 青山美語 | Math Orbs |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| 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 | Every 7 months | **Weekly** |
| Monetization | — | Paid |
| Size | 197 MB | 72 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Chi Hsien Lai](https://appshunter.io/developer/1039759515) | [Knowledge Vortex, LLC](https://appshunter.io/developer/1725396723) |

## What reviewers say

### 青山美語

[App page](https://appshunter.io/ios/app/id1451053240)

**Features:** macOS Compatibility

**In-app purchases:** none


### 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


## Frequently asked questions

### Is 青山美語 free?

青山美語 is free to download, with no in-app purchases.

### Is Math Orbs free?

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

### Do 青山美語 or Math Orbs have ads?

Neither 青山美語 nor Math Orbs shows ads.

### Which is updated more often, 青山美語 or Math Orbs?

青山美語 ships an update every 7 months, and Math Orbs weekly. Most recently, 青山美語 was updated on October 16, 2026 and Math Orbs on October 19, 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.*