# Mars Mystery vs Hidden Object ADV 3D My errand

The clearest difference is in-app purchases: Hidden Object ADV 3D My errand at none against Mars Mystery's 5. Hidden Object ADV 3D My errand also leads on update cadence (every 9 days vs every 11 months) and review sentiment (85% vs 64%). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Mars Mystery sells 5 one-off in-app purchases. Hidden Object ADV 3D My errand asks for nothing beyond the download.

Mars Mystery ships an update every 11 months, Hidden Object ADV 3D My errand every 9 days. The most recent releases landed on October 27, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Mars Mystery | Hidden Object ADV 3D My errand |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (621 ratings)](https://appshunter.io/ios/app/mars-mystery-hidden-objects/id1577196255/reviews)** | — |
| Number of ratings | **621** | — |
| Positive reviews | 63.6% of reviews | **85.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | Yes | Yes |
| Update frequency | Every 11 months | **Every 9 days** |
| Monetization | Free with in-app purchases | **Ad-supported** |
| Size | 123 MB | 327 MB |
| Requires iOS | 12.0 | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Crisp App Studio](https://appshunter.io/developer/1143551614) | [taeyoung kim](https://appshunter.io/developer/1544201893) |

## What reviewers say

### Mars Mystery

[App page](https://appshunter.io/ios/app/mars-mystery-hidden-objects/id1577196255)

Embark on a thrilling hidden object adventure on Mars. Explore its mysterious landscapes, uncover the secrets of failed expeditions, and race back to Earth. This game offers a unique sci-fi plot and trains your eyes and mind.

**Highlights:** Hidden object gameplay, Explore Mars locations, Sci-fi plot, Hints for beginners, Replayable scenes, Eyes and mind training

**Features:** Vision Pro support

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Preview Hints Pack | $0.99 | one-time |
| NoAds | $0.99 | one-time |
| Time Machine | $0.99 | one-time |
| Instant Hint | $0.99 | one-time |
| Gold Master | $2.99 | one-time |

**What reviewers like**

- 🎨 Beautiful graphics and visual design
- 💡 Innovative hidden object gameplay with unique theme
- 🌍 Educational language learning feature
- 👍 Responsive developer that listens to player feedback
- ⭐ Engaging and enjoyable gameplay experience

**What reviewers complain about**

- 📺 Excessive and inappropriate advertisements
- 😤 Overly difficult star achievement system
- 🔄 Game progression bugs causing scene resets
- ⏱️ Limited content length

**Reported bugs**

- Skip ad button not functioning properly
- Scene reversion to jungle/animal scenes without clear objectives
- Three-star achievement system not triggering despite repeated play
- Hint system required to progress past certain scenes

**Requested features**

- Longer gameplay with more levels
- Better ad filtering for family-friendly content
- Improved star achievement mechanics clarity


### Hidden Object ADV 3D My errand

[App page](https://appshunter.io/ios/app/hidden-object-adv-3d-my-errand/id1581724425)

Explore immersive 3D environments to find hidden objects. Engage in a compelling story where your observational skills are tested through various errands. This game offers a fresh take on classic object-finding puzzles with interactive elements and a no-pressure gameplay experience.

**Highlights:** Groundbreaking 3D object search, Explore rooms in 360 degrees, Interactive elements like opening furniture and breaking vases, Engaging storyline with character errands, Automatic saving of progress, Unlimited tips, No time limit

**In-app purchases:** none


## Frequently asked questions

### Is Mars Mystery free?

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

### Is Hidden Object ADV 3D My errand free?

Hidden Object ADV 3D My errand is free to download, with no in-app purchases.

### Do Mars Mystery or Hidden Object ADV 3D My errand have ads?

Both Mars Mystery and Hidden Object ADV 3D My errand show ads.

### Which is updated more often, Mars Mystery or Hidden Object ADV 3D My errand?

Mars Mystery ships an update every 11 months, and Hidden Object ADV 3D My errand every 9 days. Most recently, Mars Mystery was updated on October 27, 2026 and Hidden Object ADV 3D My errand on October 24, 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.*