# 東大王からの挑戦状 vs 税金の英単語

The clearest difference is ads: 税金の英単語 at none against 東大王からの挑戦状's shown. 東大王からの挑戦状's advantage is iOS requirement (12.5 vs 17.5). On price, update cadence, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

東大王からの挑戦状 ships an update every 3 months, 税金の英単語 every 2 months. The most recent releases landed on October 26, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | 東大王からの挑戦状 | 税金の英単語 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.1 (22 ratings)](https://appshunter.io/ios/app/iq/id1442481744/reviews)** | — |
| Number of ratings | **22** | — |
| Positive reviews | 35.7% of reviews | — |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 3 months | **Every 2 months** |
| Monetization | Ad-supported | — |
| Size | 228 MB | 27 MB |
| Requires iOS | **12.5** | 17.5 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [MIKU KURAKI](https://appshunter.io/developer/1161306102) | [Hiroaki Toya](https://appshunter.io/developer/1515661642) |

## What reviewers say

### 東大王からの挑戦状

[App page](https://appshunter.io/ios/app/iq/id1442481744)

Test your intellect with challenging brain-training quizzes and puzzles. Solve over 150 unique riddles using your intuition and deduction skills. Can you conquer all the puzzles and prove your intelligence?

**Highlights:** Challenging brain-training quizzes, Over 150 riddle-style puzzles, Intuitive deduction gameplay, Tap-based answer input, Unlimited attempts to solve

**Features:** macOS Compatibility

**In-app purchases:** none


### 税金の英単語

[App page](https://appshunter.io/ios/app/id6605922077)

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

**In-app purchases:** none


## Frequently asked questions

### Is 東大王からの挑戦状 free?

東大王からの挑戦状 is free to download, with no in-app purchases.

### Is 税金の英単語 free?

税金の英単語 is free to download, with no in-app purchases.

### Do 東大王からの挑戦状 or 税金の英単語 have ads?

東大王からの挑戦状 shows ads; 税金の英単語 does not.

### Which is updated more often, 東大王からの挑戦状 or 税金の英単語?

東大王からの挑戦状 ships an update every 3 months, and 税金の英単語 every 2 months. Most recently, 東大王からの挑戦状 was updated on October 26, 2026 and 税金の英単語 on October 13, 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.*