Comparison

Hidden Numbers vs Kurotto Extreme

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

Head to head
About

Hidden Numbers

Engage in a visual challenge to find hidden numbers within beautiful scenes. Test your observation skills by spotting differences and racing against the clock. Unlock new packs and levels with in-app purchases.

Highlights
  • Find 10 hidden numbers
  • Spot differences in pictures
  • 30 beautiful background scenes
  • Use hints for assistance
  • Challenge other players
  • Share scores on social media
Features
Read full description

Hidden Numbers Challenge Free … Free … Free … Let’s Play Now! - Find 10 numbers in beautiful hidden object scenes. - Find the difference moving your finger through the whole picture. - Try not to make mistakes; with every wrong click, you will lose score. => Game has 3 different packs! - Enjoy 30 LEVELS of stunning background scenes! - Full of Fun! - Find the difference from the Hidden Numbers Challenge! Can you find them all before the time runs out? ---- Game Features --- - 30 Beautiful Background Scenes. - Exciting Locations. - Use hints to guide your search for difference. - Challenge other player through Game Center. - Share your score on Twitter,Facebook,Email. This app is available for iPhone, iPad, and iPod touch! Try it now for FREE! If you like our app, please take a time & rate it! Note: -> All packs levels are playable by clear every level,but if you want to play all packs without clear level you can unlocked through In-App Purchase. -> You can also buy hints from shop by real money!

About

Kurotto Extreme

A logic puzzle game originating from Japan with simple rules for hours of engaging challenges. Fill empty cells based on numbered circles indicating continuous black cells, with no time limits and autosave functionality.

Highlights
  • 350+ challenges across 7 difficulty levels
  • 7 new daily challenges
  • Autosave progress
  • No time limits
  • 2 global leaderboards
  • Full tutorial
Read full description

This game originated in Japan. The rules are really simple so you could enjoy hours of challenges, from easy to complex difficulty. Fill in some of the empty cells with the following rules: 1. The number in a circle indicates the total number of continuous black cells extending from it, vertically and horizontally. 2. Dragon circles may have any number of black cells around them. 3. Cells with circles cannot be colored. This game includes: + 350 challenges across 7 levels of difficulty. + 7 new daily challenges (1 per level of difficulty) + Autosave of your progress solving a grid so you could pause and resume as you wish. + No time limits to complete a challenge + 2 global leaderboards + Full Tutorial + and many more capabilities

Screenshots

Hidden Numbers4 screens
Kurotto Extreme4 screens

Verdict

The call

The clearest difference is review sentiment: Kurotto Extreme at 100% against Hidden Numbers's 0%. Kurotto Extreme also leads on rating (5.0 vs 3.0) and in-app purchases (none vs 10). On price, ratings volume, 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 Numbers sells 10 one-off in-app purchases. Kurotto Extreme asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Kurotto Extreme holds the better App Store score, 5.0 against 3.0. Both are backed by a comparable volume of ratings — 2 and 1 respectively. Written reviews point the same way: 0% of Hidden Numbers's written reviews are positive against 100% of Kurotto Extreme's.

UpkeepUpdate frequency

Hidden Numbers ships an update every 81 months, Kurotto Extreme every 22 months. The most recent releases landed on June 5, 2026 and June 10, 2026 respectively.

Scorecard5 real differences · 5 level
Hidden Numbers versus Kurotto Extreme: the parameters behind the verdict, then further details
ParameterHidden NumbersKurotto Extreme
PriceFreeFree
Rating3.0 (2 ratings)5.0 (1 ratings) — better
Positive reviews0.0% of reviews100.0% of reviews — better
Number of ratings2 — better1
Update frequencyEvery 81 monthsEvery 22 months — better
AdsYesYes
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesAd-supported — better
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS14.013.0 — better
Further details — not scored
Size20 MB22 MB
Age rating4+4+
DeveloperHiren PatelChristophe Baranger

Customer experience

Hidden Numbers

All ratings2 ratings
Positive50.0%
Neutral0.0%
Negative50.0%
Written reviews1 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

Kurotto Extreme

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

10 purchases

Hidden Numbers

One-time10
  • buy pack-1$0.99
  • buy pack-2$0.99
  • buy pack-3$0.99
Show 7 more
  • buy 10 hints$0.99
  • remove Ads$1.99
  • buy 30 hints$1.99
  • buy 50 hints$2.99
  • Full Version (all packs + remove Ads + 300 hints)$3.99
  • buy 100 hints$3.99
  • buy 200 hints$4.99
None

Kurotto Extreme

No in-app purchases

Questions

Is Hidden Numbers free?
Hidden Numbers is free to download, with in-app purchases available.
Is Kurotto Extreme free?
Kurotto Extreme is free to download, with no in-app purchases.
Which has better reviews, Hidden Numbers or Kurotto Extreme?
Kurotto Extreme is rated higher. Hidden Numbers averages 3.0 out of 5 from 2 ratings, while Kurotto Extreme averages 5.0 from 1 ratings.
Do Hidden Numbers or Kurotto Extreme have ads?
Both Hidden Numbers and Kurotto Extreme show ads.
Which is updated more often, Hidden Numbers or Kurotto Extreme?
Hidden Numbers ships an update every 81 months, and Kurotto Extreme every 22 months. Most recently, Hidden Numbers was updated on June 5, 2026 and Kurotto Extreme on June 10, 2026.

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