Comparison

Hidden Stuff vs Sudoku Effect Game

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

Head to head
About

Hidden Stuff

Discover a stylish and relaxing hidden object game. Search through artistic mosaics to find themed items, with no time limits or pressure. Enjoy beautiful illustrations and a calming puzzle experience.

Highlights
  • Artistic hidden object puzzles
  • Themed item collections
  • No time limits or attempt limits
  • Zoom functionality
  • Hint system
  • Over 700 illustrated items
Features
Read full description

► A STYLISH ANTISTRESS HIDDEN OBJECT GAME Looking for a beautiful game world to relax and have fun in? Want a simple but satisfying puzzle game that combines easily mastered mechanics with elegant, artistic design and subtle gameplay variations that enhance your playing and aesthetic experience? Then this could be exactly what you’re looking for – a uniquely stylish and original hidden object game where every single level is a gorgeous and relaxing work of art. • Hiding in the shadows: Each level of the game requires you to search through a mosaic of different items that form a silhouette, which reveals itself only once you find them all. • Variations on a theme: The items in each level are themed according to the silhouette that contains them, adding an extra element to the puzzle experience. • Always a little different: Depending on a level, you may be required to find hidden objects from the list, one by one, or by matching images. • Take your time: There are neither time limits nor limits on the number of attempts you can make, so you can keep trying to find items without any pressure for the ultimate antistress gaming experience. • Take a closer look: If you can’t see the items you need when looking at the whole artwork, zoom in on individual sections for a closer look – you’ll also be able to better appreciate the beautiful design of each single item. • For art’s sake: The exceptional quality of the artwork with each item beautifully designed, and each mosaic carefully constructed using subtle variations in colour and object size, enhances the game’s antistress qualities, making it a charming and stylish place to spend time in. • Life’s rich pageant: There’s always something new to admire with over 700 beautifully illustrated items to search for, ranging from wildlife to toys, from musical instruments to pastries and much more. • Still haven’t found what you’re looking for? If you really got stuck in finding the hidden objects in a puzzle, use the Hints tool to slowly focus in on the item you’re looking for. • Endless antistress: There are up to 1000 different puzzles to play through, each a unique work of art in its own right, ensuring you’ll always have a place to escape to and relax while searching for hidden items. ► PART PUZZLE GAME, PART ART THERAPY If you’re eager to find a puzzle game that’s genuinely relaxing, with graphics to feast your eyes on and simple mechanics that nonetheless feature enough variation to keep you engaged and entertained for hours of stress-relieving puzzle fun, then this is the game for you. If you value aesthetic beauty and a calm playing experience over constant excitement and artificial stimulation, then download the game now and discover a whole world of puzzle fun and relaxation.

About

Sudoku Effect Game

Features
Read full description

Sudoku Effect: Train Your Brain Daily! Sharpen your mind and challenge yourself with Sudoku Effect. The classic game principle available for free, the ultimate Sudoku experience designed for players of all levels. Whether you're a beginner or an expert, you'll find the perfect puzzle to test your skills and keep your brain sharp! Key Features: - Thousands of Puzzles: Enjoy endless hours of fun with puzzles ranging from Easy to Expert difficulty. - Offline Mode: Play anytime, anywhere—even without internet! - Play a game of Sudoku in 3 different levels of difficulty (Easy, Medium, Difficult) - Modern design helps you keep an overview of the playground. - Hint and Higlight of the selcted Rows and Columns are built in - Beat your personal highscore. Play against the clock. Take a break from the daily grind and give your brain the workout it deserves. Download Sudoku Effect now and start solving!

Screenshots

Hidden Stuff4 screens
Sudoku Effect Game4 screens

Verdict

The call

The clearest difference is in-app purchases: Sudoku Effect Game at none against Hidden Stuff's 8. Sudoku Effect Game also leads on iOS requirement (13.0 vs 15.0). Hidden Stuff's advantage is update cadence (every 2 months vs every 7 months). 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 Stuff sells 8 one-off in-app purchases. Sudoku Effect Game asks for nothing beyond the download.

UpkeepUpdate frequency

Hidden Stuff ships an update every 2 months, Sudoku Effect Game every 7 months. The most recent releases landed on October 21, 2026 and October 12, 2026 respectively.

Scorecard3 real differences · 7 level
Hidden Stuff versus Sudoku Effect Game: the parameters behind the verdict, then further details
ParameterHidden StuffSudoku Effect Game
PriceFreeFree
Rating4.6 (18K ratings) — better—
Positive reviews51.5% of reviews—
Number of ratings18K — better—
Update frequencyEvery 2 months — betterEvery 7 months
AdsYesYes
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.013.0 — better
Further details — not scored
Size294 MB28 MB
Age rating4+12+
DeveloperSayGames LTDAlexander Kettler

Bugs and requests

Hidden Stuff

Reported bugs

4 issues
  • Game freezing and crashing
  • Daily challenges not updating
  • Inability to progress past certain levels
  • Incorrect items being shown

Requested features

5 requests
  • Option to pay and remove ads
  • Improved monthly/daily challenge updates
  • More varied and challenging levels
  • Better item identification and descriptions
  • Volume controls

Sudoku Effect Game

Not enough reviews yet to summarise bugs or requests.

In-app purchases

8 purchases

Hidden Stuff

One-time8
  • No ADs$2.99
  • No ADs$4.99
  • 10 Hints Pack + No ADs$4.99
Show 5 more
  • 10 Hints Pack$4.99
  • 25 Hints Pack + No ADs$9.99
  • 25 Hints Pack$9.99
  • 140 Hints Pack + No ADs$49.99
  • 140 Hints Pack$49.99
None

Sudoku Effect Game

No in-app purchases

Questions

Is Hidden Stuff free?
Hidden Stuff is free to download, with in-app purchases available.
Is Sudoku Effect Game free?
Sudoku Effect Game is free to download, with no in-app purchases.
Do Hidden Stuff or Sudoku Effect Game have ads?
Both Hidden Stuff and Sudoku Effect Game show ads.
Which is updated more often, Hidden Stuff or Sudoku Effect Game?
Hidden Stuff ships an update every 2 months, and Sudoku Effect Game every 7 months. Most recently, Hidden Stuff was updated on October 21, 2026 and Sudoku Effect Game on October 12, 2026.

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