# ウチのあざらしちゃん vs Mars Rescue

The clearest difference is ads: ウチのあざらしちゃん at none against Mars Rescue's shown. ウチのあざらしちゃん also leads on update cadence (fortnightly vs every 4 months) and rating (4.9 vs 4.6). Mars Rescue's advantage is ratings volume (27 vs 7). On price, in-app purchases and device support there is nothing between them.

Both are free to download. ウチのあざらしちゃん sells 4 one-off in-app purchases and Mars Rescue sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

ウチのあざらしちゃん holds the better App Store score, 4.9 against 4.6. Both are backed by a comparable volume of ratings — 7 and 27 respectively. Written reviews point the same way: 66% of ウチのあざらしちゃん's written reviews are positive against 50% of Mars Rescue's.

ウチのあざらしちゃん ships an update fortnightly, Mars Rescue every 4 months. The most recent releases landed on November 1, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | ウチのあざらしちゃん | Mars Rescue |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.9 (7 ratings)](https://appshunter.io/ios/app/id996868107/reviews)** | [4.6 (27 ratings)](https://appshunter.io/ios/app/mars-rescue-rocket-simulator/id6443799860/reviews) |
| Number of ratings | 7 | **27** |
| Positive reviews | **65.7% of reviews** | 50.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | **Fortnightly** | Every 4 months |
| Monetization | — | Free with in-app purchases |
| Size | 40 MB | 239 MB |
| Requires iOS | **6.0** | 17.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [GOODROID,Inc.](https://appshunter.io/developer/951688937) | [Ivan Panasenko](https://appshunter.io/developer/1457075143) |

## What reviewers say

### ウチのあざらしちゃん

[App page](https://appshunter.io/ios/app/id996868107)

**Features:** Vision Pro support

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 拡張レベル１ | $0.99 | one-time |
| 拡張レベル２ | $0.99 | one-time |
| 拡張レベル３ | $0.99 | one-time |
| 拡張レベル４ | $0.99 | one-time |


### Mars Rescue

[App page](https://appshunter.io/ios/app/mars-rescue-rocket-simulator/id6443799860)

Control a rocket to rescue astronauts from the Martian surface in this skill-based arcade simulator. Manage your fuel, avoid crashes, and enjoy stylized graphics and simple controls.

**Highlights:** Skill-based arcade gameplay, Rocket control, Astronaut rescue missions, Fuel management, Simple controls, Stylized graphics, Cloud save option

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove ads on Mars | $0.99 | one-time |


## Frequently asked questions

### Is ウチのあざらしちゃん free?

ウチのあざらしちゃん is free to download, with in-app purchases available.

### Is Mars Rescue free?

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

### Which has better reviews, ウチのあざらしちゃん or Mars Rescue?

ウチのあざらしちゃん is rated higher. ウチのあざらしちゃん averages 4.9 out of 5 from 7 ratings, while Mars Rescue averages 4.6 from 27 ratings.

### Do ウチのあざらしちゃん or Mars Rescue have ads?

Mars Rescue shows ads; ウチのあざらしちゃん does not.

### Which is updated more often, ウチのあざらしちゃん or Mars Rescue?

ウチのあざらしちゃん ships an update fortnightly, and Mars Rescue every 4 months. Most recently, ウチのあざらしちゃん was updated on November 1, 2026 and Mars Rescue on October 24, 2026.

---

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