Comparison

Futoshiki 101 vs Odd Machines

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

Head to head
About

Futoshiki 101

Challenge your logic with over 100 Sudoku-style number puzzles. Arrange numbers 1-5 in rows and columns while adhering to greater-than/less-than constraints between adjacent numbers. Features pencil mode for notes and mistake highlighting.

Highlights
  • 101 increasingly difficult puzzles
  • Sudoku-style number arrangement
  • Greater-than/less-than constraints
  • Pencil mode for notes
  • Mistake highlighting
  • 5 difficulty levels
Features
Read full description

Prepare yourself for Futoshiki fever as you make your way through 101 increasingly difficult Sudoku-style number puzzles in one great app. The aim of the game is simple: drag and drop the numbers onto the grid so that each row and column contains the numbers 1 to 5, and numbers either side of a less-than and greater-than symbol are bigger or smaller than their neighbour, as indicated. Easy, right? You can plan ahead using pencil mode to make notes, and its easy to spot mistakes because the app will highlight them for you. So, with 5 difficultly levels from Tranquil to Terrifying, only one question remains: can you solve them all? Download Futoshiki 101 today!

About

Odd Machines

Embark on a 3D escape room adventure as a treasure hunter seeking a lost artifact. Solve intricate mechanical puzzles, uncover hidden objects, and unravel mysteries within an ancient temple. Collect fragments of a powerful stone to escape.

Highlights
  • Solve unique puzzle boxes
  • Explore an ancient temple
  • Collect fragments of a lost stone
  • Immersive audio experience
  • Multi-language support
Features
Read full description

You are a legendary treasure hunter, looking for the Stone of Silence, a powerful artifact that got lost in an old temple. There, you will find a series of weird machines full of puzzles to crack to gain your freedom! Odd Machines: Lost Artifacts is a 3D escape room puzzle game where you have to solve complex mechanical puzzles, discover hidden objects, and unveil intriguing mysteries! Dive into a world where cryptic vibes, complex mechanisms, and smooth controls from top escape room games blend to challenge your brain skills. You'll tackle unique puzzle sets on a mysterious, gripping adventure. Every machine is crafted to deliver the ultimate escape and exploration thrill. Play the first 3 levels for free! SOLVE UNIQUE PUZZLE BOXES Embark on a puzzling adventure with an eclectic mix of original Victorian machinery, classic and architectural enigmas EXPLORE AN ANCIENT TEMPLE Step into a mesmerizing world where every move you make reveals new mysteries and changes! COLLECT ALL THE FRAGMENTS OF THE STONE OF SILENCE Once you get all 8 pieces of the lost stone, you'll be transported into a mystical scene where you'll have to crack numeric puzzles to put the pieces together and finally escape the temple IMMERSIVE AUDIO The sound effects and tunes are so mind-blowingly good that will whisk you away on an unforgettable, vibe-filled adventure! MULTI-LANGUAGE SUPPORT* Odd Machines: Lost Artifacts is available in English, French, German, Italian, Japanese, Korean, Portuguese, Russian, and Spanish. *The game language changes based on the device settings

Screenshots

Futoshiki 1012 screens
Odd Machines4 screens

Verdict

The call

The clearest difference is review sentiment: Odd Machines at 61% against Futoshiki 101's 0%. Odd Machines also leads on rating (4.3 vs 1.0) and ratings volume (89 vs 3). Futoshiki 101's advantage is update cadence (monthly vs every 2 months) and iOS requirement (9.0 vs 15.0). On price, ads, in-app purchases and monetization model 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. Futoshiki 101 sells 1 one-off in-app purchase and Odd Machines sells 3 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Odd Machines holds the better App Store score, 4.3 against 1.0. That said, the two scores are not equally well evidenced: Odd Machines has 89 ratings behind it against 3, so its average is the more settled of the two. Written reviews point the same way: 0% of Futoshiki 101's written reviews are positive against 61% of Odd Machines's.

UpkeepUpdate frequency

Futoshiki 101 ships an update monthly, Odd Machines every 2 months. The most recent releases landed on October 14, 2026 and October 25, 2026 respectively.

Scorecard5 real differences · 5 level
Futoshiki 101 versus Odd Machines: the parameters behind the verdict, then further details
ParameterFutoshiki 101Odd Machines
PriceFreeFree
Rating1.0 (3 ratings)4.3 (89 ratings) — better
Positive reviews0.0% of reviews61.1% of reviews — better
Number of ratings389 — better
Update frequencyMonthly — betterEvery 2 months
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS9.0 — better15.0
Further details — not scored
Size8 MB436 MB
Age rating4+9+
DeveloperMesmotronicXSGames

Customer experience

Futoshiki 101

All ratings3 ratings
Positive0.0%
Neutral0.0%
Negative100.0%
Written reviews2 reviews
Positive0.0%
Neutral50.0%
Negative50.0%

Odd Machines

All ratings85 ratings
Positive85.9%
Neutral3.5%
Negative10.6%
Written reviews36 reviews
Positive61.1%
Neutral8.3%
Negative30.6%

Bugs and requests

Futoshiki 101

Not enough reviews yet to summarise bugs or requests.

Odd Machines

Reported bugs

9 issues
  • No stone to collect from 5th window
  • Game closes immediately on 'play'
  • Bug in first machine, stone disappears
  • Cannot zoom on puzzle
  • Cannot actuate dials
Show 4 more
  • First line of clues/directions hidden by status bar on iPhone
  • Hint button not intuitive
  • No audio in levels, only main menu
  • Bug on top of 4th machine, need to return to temple

Requested features

6 requests
  • Full game should be free
  • Monocle usable at zoomed out level
  • More visual feedback for puzzle completion
  • Option to get the answer when hint isn't enough
  • More levels/unlimited levels
Show 1 more
  • Swap back button positions

In-app purchases

1 purchases

Futoshiki 101

One-time1
  • Remove adverts$1.99
3 purchases

Odd Machines

One-time3
  • Full Game$3.99
  • Unlock Full Game + Coffee$4.99
  • Unlock Full Game + Love$7.99

Questions

Is Futoshiki 101 free?
Futoshiki 101 is free to download, with in-app purchases available.
Is Odd Machines free?
Odd Machines is free to download, with in-app purchases available.
Which has better reviews, Futoshiki 101 or Odd Machines?
Odd Machines is rated higher. Futoshiki 101 averages 1.0 out of 5 from 3 ratings, while Odd Machines averages 4.3 from 89 ratings.
Do Futoshiki 101 or Odd Machines have ads?
Neither Futoshiki 101 nor Odd Machines shows ads.
Which is updated more often, Futoshiki 101 or Odd Machines?
Futoshiki 101 ships an update monthly, and Odd Machines every 2 months. Most recently, Futoshiki 101 was updated on October 14, 2026 and Odd Machines on October 25, 2026.

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