# Hidden Objects Coastal Hill vs Letter Drop Challenge

The clearest difference is in-app purchases: Letter Drop Challenge at none against Hidden Objects Coastal Hill's 13. Hidden Objects Coastal Hill's advantage is update cadence (every 2 weeks vs monthly) and iOS requirement (15.0 vs 17.6). On price, ads and device support there is nothing between them.

Both are free to download. Hidden Objects Coastal Hill sells 13 one-off in-app purchases. Letter Drop Challenge asks for nothing beyond the download.

Hidden Objects Coastal Hill ships an update every 2 weeks, Letter Drop Challenge monthly. The most recent releases landed on October 31, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Hidden Objects Coastal Hill | Letter Drop Challenge |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (5.3K ratings)](https://appshunter.io/ios/app/hidden-objects-coastal-hill/id1396053153/reviews)** | — |
| Number of ratings | **5.3K** | — |
| Positive reviews | 86.9% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Monthly |
| Monetization | Free with in-app purchases | — |
| Size | 415 MB | 9 MB |
| Requires iOS | **15.0** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 9+ | 4+ |
| Developer | [AdoreStudio Ltd.](https://appshunter.io/developer/430272251) | [Ewan Sanderson](https://appshunter.io/developer/1885588625) |

## What reviewers say

### Hidden Objects Coastal Hill

[App page](https://appshunter.io/ios/app/hidden-objects-coastal-hill/id1396053153)

Embark on a puzzle adventure in a mysterious city shrouded in darkness. Search for hidden objects, solve puzzles, and battle creatures to uncover secrets and restore a haunted mansion. Features include avatar customization, collectible items, and social guild features.

**Highlights:** 5000+ quest puzzles, Card fights with monsters, Avatar customization, Design and restore mansion, 60+ locations to search, 18 game modes, Collect 1600+ items

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

**In-app purchases (13)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Puzzles solving pack | $0.99 | one-time |
| One-Time Offer | $0.99 | one-time |
| 10 Crystals | $1.99 | one-time |
| Medium Train Offer | $2.99 | one-time |
| Adventure welcoming pack | $3.99 | one-time |
| 30 Crystals | $4.99 | one-time |
| VIP Daily Tasks Reward | $4.99 | one-time |
| Road Pass | $4.99 | one-time |
| Big Train Offer | $4.99 | one-time |
| Ascent Pass | $6.99 | one-time |
| 65 Crystals | $9.99 | one-time |
| VIP Pass - boost your progress | $9.99 | one-time |
| 145 Crystals | $19.99 | one-time |

**What reviewers like**

- 🚀 Interesting hidden object game
- 👍 Fun and exciting
- 👍 Variety of gameplay
- 👍 Challenging without being frustrating
- 👍 Keeps the mind sharp

**What reviewers complain about**

- 🐛 Glitches and technical issues
- 💰 Expensive to play well
- 💰 Increasing costs with updates
- ⏱️ Timed tasks can be too difficult
- 🤔 Confusing mechanics and progression

**Reported bugs**

- Frequent crashes and login issues
- Lost progress and rewards
- Inconsistent performance after updates
- Disappearing items and currencies

**Requested features**

- Dark mode option
- Better communication from developers
- Improved technical support
- More lenient timed tasks
- Ability to gift items to new players


### Letter Drop Challenge

[App page](https://appshunter.io/ios/app/letter-drop-challenge/id6760661748)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Hidden Objects Coastal Hill free?

Hidden Objects Coastal Hill is free to download, with in-app purchases available.

### Is Letter Drop Challenge free?

Letter Drop Challenge is free to download, with no in-app purchases.

### Do Hidden Objects Coastal Hill or Letter Drop Challenge have ads?

Neither Hidden Objects Coastal Hill nor Letter Drop Challenge shows ads.

### Which is updated more often, Hidden Objects Coastal Hill or Letter Drop Challenge?

Hidden Objects Coastal Hill ships an update every 2 weeks, and Letter Drop Challenge monthly. Most recently, Hidden Objects Coastal Hill was updated on October 31, 2026 and Letter Drop Challenge on October 25, 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.*