Comparison

Hidden Objects Coastal Hill vs Sudoku Master Challenges

Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.

Head to head
About

Hidden Objects Coastal Hill

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
Read full description

You woke up in a town that seems to remember you… even though you don't remember it. Search for hidden objects, discover clues, solve puzzles, battle sinister creatures, and restore a haunted mansion as you investigate the mystery surrounding Coastal Hill. Every discovery brings you closer to the truth—and deeper into the town's secrets. IMMERSE YOURSELF IN A MYSTERIOUS STORY Every resident seems to know more than they're willing to share. Search and find hidden objects, spot the clues, solve brain teasers, and meet intriguing characters as you uncover what lies beneath the city's peaceful facade. EXPLORE 60+ DETAILED SCENES Seek and find objects across more than 60 stunning locations. Complete over 5,000 quests, collect more than 1,600 unique items, and master 18 search modes, including Spot the Difference, Silhouettes, Find Pairs, and more. DECORATE AN OLD MANSION Bring a haunted mansion back to life and uncover the secrets hidden within its walls. Renovate rooms, choose decorations, and create a home that reflects your style. CREATE YOUR AVATAR Customize your character with unique hairstyles, outfits, boots, and accessories that provide useful power-ups and bonuses. TEAM UP WITH FRIENDS Start your own guild, invite your friends and compete with players from around the world. Find hidden objects, fight monsters in card-matching battles, build Wonders of the World, complete mystery adventure quests, and enjoy a wide variety of mini-games, including Three Tiles, Puzzles, Mahjong, Flasks, Bingo, Words, and more. Coastal Hill is a free game, but some in-game items may be purchased for real money. The mystery continues every month with new hidden object scenes, investigation quests, seasonal events, collectibles, and generous rewards. Join our official communities and stay tuned on the latest news, interesting facts, and more cool stuff: Facebook https://www.facebook.com/coastalhillmystery Instagram https://www.instagram.com/coastalhillmystery If you have any questions or comments, feel free to contact us at info@adoregames.com or use in-game chat. Privacy Policy: http://o.adoregames.com/privacy-policy Terms of Use: http://o.adoregames.com/terms-of-service

About

Sudoku Master Challenges

Features
Read full description

Have a pleasant and quality time with Original Sudoku Puzzles. SUDOKU MASTER is at your service with daily or instantly generated sudoku puzzles. Welcome to the ultimate brain training experience designed for both beginners and advanced sudoku solvers. Experience a classic logic puzzle game that adapts to you, offering an infinite number of unique challenges. Why choose Sudoku Master? - Instant Unique Generation: Never play the same board twice. Our smart system generates custom puzzles instantly tailored just for you. - Daily Challenges with NO Ads: Enjoy your daily brain workout completely free of any forced advertisements. - Smart Ad Protection: We value your gaming experience. Enjoy a smooth puzzle session with our built-in 5-minute ad protection cooldown. - Global Leaderboards: Track your progress, earn achievements, and compete with puzzle masters worldwide. Train your brain, improve your logic skills, and keep your mind sharp with Original Sudoku Puzzles. Download now and start your journey!

Screenshots

Hidden Objects Coastal Hill4 screens
Sudoku Master Challenges4 screens

Verdict

The call

The clearest difference is ads: Hidden Objects Coastal Hill at none against Sudoku Master Challenges's shown. Sudoku Master Challenges's advantage is update cadence (every 3 days vs every 2 weeks). On price, in-app purchases, device support and iOS requirement there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Hidden Objects Coastal Hill sells 13 one-off in-app purchases and Sudoku Master Challenges sells 5 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Hidden Objects Coastal Hill ships an update every 2 weeks, Sudoku Master Challenges every 3 days. The most recent releases landed on October 26, 2026 and October 24, 2026 respectively.

Scorecard2 real differences · 8 level
Hidden Objects Coastal Hill versus Sudoku Master Challenges: the parameters behind the verdict, then further details
ParameterHidden Objects Coastal HillSudoku Master Challenges
PriceFreeFree
Rating4.7 (5.3K ratings) — better—
Positive reviews87.0% of reviews—
Number of ratings5.3K — better—
Update frequencyEvery 2 weeksEvery 3 days — better
AdsNo — betterYes
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.015.0
Further details — not scored
Size415 MB157 MB
Age rating9+9+
DeveloperAdoreStudio Ltd.Duralı UYUMAZ

Bugs and requests

Hidden Objects Coastal Hill

Reported bugs

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

Requested features

6 requests
  • Dark mode option
  • Better communication from developers
  • Improved technical support
  • More lenient timed tasks
  • Ability to gift items to new players
Show 1 more
  • Separate servers for competitive teams

Sudoku Master Challenges

Not enough reviews yet to summarise bugs or requests.

In-app purchases

13 purchases

Hidden Objects Coastal Hill

One-time13
  • Puzzles solving pack$0.99
  • One-Time Offer$0.99
  • 10 Crystals$1.99
Show 10 more
  • Medium Train Offer$2.99
  • Adventure welcoming pack$3.99
  • 30 Crystals$4.99
  • VIP Daily Tasks Reward$4.99
  • Road Pass$4.99
  • Big Train Offer$4.99
  • Ascent Pass$6.99
  • 65 Crystals$9.99
  • VIP Pass - boost your progress$9.99
  • 145 Crystals$19.99
5 purchases

Sudoku Master Challenges

One-time5
  • 100 Energy$0.99
  • 300 WCoin$0.99
  • 50 Energy + 150 WCoin$0.99
Show 2 more
  • No Ads + 100 Energy + 300 WCoin$1.99
  • 1000 Energy + 3000 WCoin$6.99

Questions

Is Hidden Objects Coastal Hill free?
Hidden Objects Coastal Hill is free to download, with in-app purchases available.
Is Sudoku Master Challenges free?
Sudoku Master Challenges is free to download, with in-app purchases available.
Do Hidden Objects Coastal Hill or Sudoku Master Challenges have ads?
Sudoku Master Challenges shows ads; Hidden Objects Coastal Hill does not.
Which is updated more often, Hidden Objects Coastal Hill or Sudoku Master Challenges?
Hidden Objects Coastal Hill ships an update every 2 weeks, and Sudoku Master Challenges every 3 days. Most recently, Hidden Objects Coastal Hill was updated on October 26, 2026 and Sudoku Master Challenges on October 24, 2026.

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