Comparison

Hidden Objects Coastal Hill vs Letter Drop Challenge

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

Letter Drop Challenge

Features
Read full description

Letter Drop is the word game that rewards fast thinking over slow deliberation. Swipe through the grid to spell words, clear the block, and beat the clock — every single day. ONE GAME. TWO GAME MODES DAILY CHALLENGE A new puzzle drops every day. six blocks, one chance, one score to beat. Come back tomorrow and go again. SURVIVAL MODE Not ready to stop? Survival mode lets you keep playing, keep clearing, and keep climbing. HOW IT WORKS Swipe connected letters to spell words Longer words score bigger points Clear the block before time runs out Build your streak by playing every day Compete with friends & deep dive your stats Learn new words! Simple to learn. Hard to put down.

Screenshots

Hidden Objects Coastal Hill4 screens
Letter Drop Challenge4 screens

Verdict

The call

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.

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. Letter Drop Challenge asks for nothing beyond the download.

UpkeepUpdate frequency

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.

Scorecard3 real differences · 7 level
Hidden Objects Coastal Hill versus Letter Drop Challenge: the parameters behind the verdict, then further details
ParameterHidden Objects Coastal HillLetter Drop Challenge
PriceFreeFree
Rating4.7 (5.3K ratings) — better—
Positive reviews86.9% of reviews—
Number of ratings5.3K — better—
Update frequencyEvery 2 weeks — betterMonthly
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.0 — better17.6
Further details — not scored
Size415 MB9 MB
Age rating9+4+
DeveloperAdoreStudio Ltd.Ewan Sanderson

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

Letter Drop Challenge

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
None

Letter Drop Challenge

No in-app purchases

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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