# チャレンジ英単語 for the TOEIC®TEST vs Mathematical Playground

The clearest difference is review sentiment: チャレンジ英単語 for the TOEIC®TEST at 75% against Mathematical Playground's 22%. チャレンジ英単語 for the TOEIC®TEST also leads on iOS requirement (13.0 vs 17.6). Mathematical Playground's advantage is price ($1.99 vs $4.99) and update cadence (every 2 months vs every 5 months). On ads, in-app purchases, monetization model and device support there is nothing between them.

チャレンジ英単語 for the TOEIC®TEST costs $4.99 and Mathematical Playground $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

チャレンジ英単語 for the TOEIC®TEST ships an update every 5 months, Mathematical Playground every 2 months. The most recent releases landed on November 6, 2026 and November 2, 2026 respectively.

## The numbers

| Metric | チャレンジ英単語 for the TOEIC®TEST | Mathematical Playground |
| --- | --- | --- |
| Price | $4.99 | **$1.99** |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/for-the-toeictest/id495450617/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | **75.0% of reviews** | 22.2% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 2 months** |
| Monetization | Paid | Paid |
| Size | 78 MB | 96 MB |
| Requires iOS | **13.0** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [HuMinghua](https://appshunter.io/developer/475340211) | [Jun Nakashima](https://appshunter.io/developer/1130820204) |

## What reviewers say

### チャレンジ英単語 for the TOEIC®TEST

[App page](https://appshunter.io/ios/app/for-the-toeictest/id495450617)

Master TOEIC vocabulary with this app. It offers timed quizzes with multiple-choice answers, focusing on words for 600, 730, and 860-point levels. Incorrectly answered words are automatically added to a review list for repeated practice.

**Highlights:** Timed multiple-choice quizzes, Vocabulary categorized by TOEIC score, Automatic review list for incorrect words, Customizable quiz length and speed, Word card display with pronunciation and examples, Progress reporting and charts

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

**In-app purchases:** none


### Mathematical Playground

[App page](https://appshunter.io/ios/app/mathematical-playground/id1180400849)

An educational tool for learning and teaching about 3D mathematical shapes. It offers features like measuring dimensions, cutting shapes, and coloring, making complex geometry accessible for students and educators.

**Highlights:** Measure length, area, distance, angles, and volume, Cut shapes along a specified plane, Expand shapes face by face, Color and highlight shapes, Handwriting and screenshot tools, Share shape data wirelessly

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

**In-app purchases:** none


## Frequently asked questions

### Is チャレンジ英単語 for the TOEIC®TEST free?

チャレンジ英単語 for the TOEIC®TEST costs $4.99, with no in-app purchases.

### Is Mathematical Playground free?

Mathematical Playground costs $1.99, with no in-app purchases.

### Do チャレンジ英単語 for the TOEIC®TEST or Mathematical Playground have ads?

Neither チャレンジ英単語 for the TOEIC®TEST nor Mathematical Playground shows ads.

### Which is updated more often, チャレンジ英単語 for the TOEIC®TEST or Mathematical Playground?

チャレンジ英単語 for the TOEIC®TEST ships an update every 5 months, and Mathematical Playground every 2 months. Most recently, チャレンジ英単語 for the TOEIC®TEST was updated on November 6, 2026 and Mathematical Playground on November 2, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*