# 東大王からの挑戦状 vs Moji Sling

The clearest difference is review sentiment: Moji Sling at 100% against 東大王からの挑戦状's 36%. Moji Sling also leads on ads (none vs shown) and update cadence (every 10 days vs every 3 months). 東大王からの挑戦状's advantage is monetization model (ad-supported vs free with in-app purchases) and device support (3 vs 1). On price and in-app purchases 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, Moji Sling every 10 days. The most recent releases landed on October 15, 2026 and September 26, 2026 respectively.

## The numbers

| Metric | 東大王からの挑戦状 | Moji Sling |
| --- | --- | --- |
| 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 | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 3 months | **Every 10 days** |
| Monetization | **Ad-supported** | Free with in-app purchases |
| Size | 228 MB | 24 MB |
| Requires iOS | **12.5** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 9+ |
| Developer | [MIKU KURAKI](https://appshunter.io/developer/1161306102) | [RICHARD HILL](https://appshunter.io/developer/6779612622) |

## 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


### Moji Sling

[App page](https://appshunter.io/ios/app/moji-sling/id6801556413)

A word puzzle game where falling hiragana tiles must be arranged into Japanese words to clear them before the stack reaches the top. Strategize with tile placement and word length for higher scores, or challenge friends in versus mode.

**Highlights:** Falling hiragana tile gameplay, Build Japanese words to clear tiles, Strategic tile lifting and placement, Longer words score more points, Two-player versus mode, Extensive Japanese dictionary, Offline play supported

**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 Moji Sling free?

Moji Sling is free to download, with no in-app purchases.

### Do 東大王からの挑戦状 or Moji Sling have ads?

東大王からの挑戦状 shows ads; Moji Sling does not.

### Which is updated more often, 東大王からの挑戦状 or Moji Sling?

東大王からの挑戦状 ships an update every 3 months, and Moji Sling every 10 days. Most recently, 東大王からの挑戦状 was updated on October 15, 2026 and Moji Sling on September 26, 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.*