Comparison

Kakuso Challenge vs Flull Flash 1000

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

Head to head
About

Kakuso Challenge

Features
Read full description

Attractive Layout, Amazing Graphics, Extraordinary Designed Board, Intuitive User Interface, Ease of Use. This is the more advance level board game that you should challenge like you never experience before. Unlimited puzzles with varied level of difficulty to fit your choice. 6x6, 8x8, 10x10, 10x12 You’ll never regret having this Kakuso Challenge, which is just perfectly challenge your mind, your logical thinking skill, your brain cells! Interrupted? Need a Break? Exit Kakuso Challenge and you’ll get to see your incomplete puzzle is saved and awaiting for your return. Stuck? Need some guide? Simply click on hints and you'll get an answer right away! Useful hints as aid, why not! Feature: - Auto Save Mode - Levels of Difficulty - Endless, Randomly Generated Puzzles - Game Timer - Pause/Resume Puzzle - Smart Hints How to play: The goal is to make some of the cells check in such a way that:
 1. Tap to fill the cells with Light Blue and Green squares.

 2. The check cells on each row and column to have equal number of Light Blue and Green squares. 3.1 Three(3) cells same color in row are not allowed for level 6 x 6 and 8 x 8. 3.2 Four(4) cells same color in row are not allowed for level 10 x 10 and 10 x 12 

 Tap to change cells color

About

Flull Flash 1000

This quiz app focuses on multi-wait patterns in Mahjong. It offers over 1000 questions with visual breakdowns to help users understand and quickly improve their waiting pattern recognition and decision-making skills.

Highlights
  • Multi-wait pattern quizzes
  • Over 1000 questions
  • Visual breakdown of waits
  • Level-based learning
  • Review of incorrect answers
  • Time attack mode
Features
Read full description

This is a mahjong "nani-kiru" (what to discard) quiz app specializing in complex wait patterns (tamen-machi). It contains over 1,000 high-quality problems. With a breakdown display of melds, you can see at a glance why a certain wait occurs. Repeating these problems will make your decision-making faster and more accurate. Features Wait Breakdown: Melds, sub-melds (tatsu), and wait elements are color-coded, helping you understand the mechanics behind them. Which to Discard Mode: Pick the discard that keeps the widest wait from a ready hand, with detailed comparisons of waits, tiles left, yaku, and scores. Level-based Learning: Start with simple 7-tile or 10-tile problems and step up gradually. Overcome Weaknesses with Review: Incorrect answers are automatically recorded, allowing you to focus your training on areas you struggle with. Time Attack: Train your split-second reaction speed under time pressure, just like in a real match. Over 1000 Problems: A wide variety of unique problems, keeping you engaged for the long term. Recommended for those who Want to reduce oversight in complex wait situations. Want to memorize wait patterns for flush hands (chinitsu) by heart. Want to relearn the basics of tile efficiency. About Subscriptions Some features are available via subscription. Before purchasing, please be sure to check the name, duration, price, auto-renewal, and cancellation methods displayed within the app. * Payment will be charged to your Apple ID at the time of purchase confirmation. You can manage or cancel your subscription by going to Settings > Apple ID > Subscriptions. Unless cancelled at least 24 hours before the renewal date, the subscription will automatically renew. Terms of Use The Apple Standard End User License Agreement (Apple Standard EULA) applies to this app. Apple Standard EULA: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy Please check the privacy policy via the Privacy Policy URL provided in App Store Connect.

Screenshots

Kakuso Challenge4 screens
Flull Flash 10004 screens

Verdict

The call

The clearest difference is update cadence: Flull Flash 1000 at every 3 days against Kakuso Challenge's every 6 months. Kakuso Challenge's advantage is iOS requirement (13.1 vs 15.0). On price, ads, in-app purchases 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. Kakuso Challenge sells 3 one-off in-app purchases and Flull Flash 1000 sells 4 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Kakuso Challenge ships an update every 6 months, Flull Flash 1000 every 3 days. Both last shipped on November 3, 2026.

Scorecard2 real differences · 8 level
Kakuso Challenge versus Flull Flash 1000: the parameters behind the verdict, then further details
ParameterKakuso ChallengeFlull Flash 1000
PriceFreeFree
Rating—4.5 (2 ratings) — better
Positive reviews—81.3% of reviews
Number of ratings—2 — better
Update frequencyEvery 6 monthsEvery 3 days — better
AdsYesYes
In-app purchasesYesYes
Monetization—Freemium
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS13.1 — better15.0
Further details — not scored
Size17 MB81 MB
Age rating4+4+
DeveloperAlven KamNaoki Nakamichi

In-app purchases

3 purchases

Kakuso Challenge

One-time3
  • Kakuso Challenge 20 Hints$0.99
  • Kakuso Challenge 50 Hints$1.99
  • Kakuso Challenge 100 Hints$2.99
4 purchases

Flull Flash 1000

Subscriptions2
  • Pro (Monthly)$1.991 Month
  • Pro (yearly)$12.991 Year
One-time2
  • Tile type changeable option$2.99
  • 買い切りプラン$29.99

Questions

Is Kakuso Challenge free?
Kakuso Challenge is free to download, with in-app purchases available.
Is Flull Flash 1000 free?
Flull Flash 1000 is free to download, with in-app purchases available.
Do Kakuso Challenge or Flull Flash 1000 have ads?
Both Kakuso Challenge and Flull Flash 1000 show ads.
Which is updated more often, Kakuso Challenge or Flull Flash 1000?
Kakuso Challenge ships an update every 6 months, and Flull Flash 1000 every 3 days. Most recently, Kakuso Challenge was updated on November 3, 2026 and Flull Flash 1000 on November 3, 2026.

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