# 発音学習アプリ vs Mars X Run

The clearest difference is in-app purchases: 発音学習アプリ at none against Mars X Run's 10. 発音学習アプリ also leads on ads (none vs shown) and update cadence (every 10 days vs every 6 weeks). On price and device support there is nothing between them.

Both are free to download. Mars X Run sells 10 one-off in-app purchases. 発音学習アプリ asks for nothing beyond the download.

発音学習アプリ ships an update every 10 days, Mars X Run every 6 weeks. The most recent releases landed on October 27, 2026 and November 8, 2026 respectively.

## The numbers

| Metric | 発音学習アプリ | Mars X Run |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (4 ratings)](https://appshunter.io/ios/app/mars-x-run/id6473744478/reviews)** |
| Number of ratings | — | **4** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 10 days** | Every 6 weeks |
| Monetization | — | Free with in-app purchases |
| Size | 71 MB | 354 MB |
| Requires iOS | **8.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 12+ |
| Developer | [ALC PRESS, INC.](https://appshunter.io/developer/311444037) | [J&A Marsian](https://appshunter.io/developer/1719656564) |

## What reviewers say

### 発音学習アプリ

[App page](https://appshunter.io/ios/app/id1514564873)

**Features:** Vision Pro support

**In-app purchases:** none


### Mars X Run

[App page](https://appshunter.io/ios/app/mars-x-run/id6473744478)

Experience a high-skill, fast-paced endless runner with full movement freedom. Escape a collapsing Mars station filled with lava, utilizing jetpacks, shooting, and power-ups. Customize your runner and master challenging gameplay where every second counts.

**Highlights:** Uncapped speed progression, Jetpack flight mechanics, Target shooting for paths and score, Full freedom of movement, no lanes, Upgradeable power-ups, Extensive runner customization, Daily quests and rewards

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

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| AD SKIP chip deal | $0.99 | one-time |
| 30 DAY RARE CARD | $2.99 | one-time |
| 30 DAY EPIC CARD | $4.99 | one-time |
| 30 DAY SUPPLY CARD | $4.99 | one-time |
| Lifetime credit card | $4.99 | one-time |
| 4000 Mars coin | $8.99 | one-time |
| 8000 mars coin | $8.99 | one-time |
| All infinite packs | $8.99 | one-time |
| Lifetime AD SKIP card | $9.99 | one-time |
| Lifetime Mars card | $29.99 | one-time |


## Frequently asked questions

### Is 発音学習アプリ free?

発音学習アプリ is free to download, with no in-app purchases.

### Is Mars X Run free?

Mars X Run is free to download, with in-app purchases available.

### Do 発音学習アプリ or Mars X Run have ads?

Mars X Run shows ads; 発音学習アプリ does not.

### Which is updated more often, 発音学習アプリ or Mars X Run?

発音学習アプリ ships an update every 10 days, and Mars X Run every 6 weeks. Most recently, 発音学習アプリ was updated on October 27, 2026 and Mars X Run on November 8, 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.*