Comparison

ice sudoku vs FlowClock

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

Head to head
About

ice sudoku

This app offers a vast collection of Sudoku puzzles across various difficulty levels, featuring a logic analysis system and customizable gameplay. Enjoy offline play with a focus on privacy and continuous updates.

Highlights
  • Extensive Sudoku question bank
  • Multiple difficulty levels
  • Step-by-step logic analysis
  • Offline play
  • Customizable gameplay
  • Sudoku scanning recognition
Features
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【High performance, rich sudoku bank】 ice sudoku uses an efficient random number algorithm and uses multi-threaded concurrent technology to efficiently utilize Apple A series processors. It can quickly generate 5 types of Sudoku of different difficulty levels (beginner, easy, medium, difficult, and top). It provides a comprehensive question bank covering SE 1.2~11.9 and supports search and random retrieval. (1) Beginner, easy, medium, difficult, and top Sudoku special skill questions: 999 questions each (2) Higher algorithm level Ice Sudoku Sudoku (SE 8.3-SE 9.2): 999 questions (3) Peak algorithm level Icey Comet Sudoku (SE 8.8-SE 10.5): 999 questions (4) Super first-class difficulty Sudoku (SE 10.5+): more than 100 questions 【Extreme logic, advanced challenge】 It has a complete logic analysis system that supports step-by-step solutions for any Sudoku, helping you sort out the logical reasoning of each step. It has a rich library of targeted Sudoku training to help you become a Sudoku master. Exclusive challenge mode, test level, speed challenge, unlock exclusive icons, so that Sudoku is no longer boring. [Privacy protection, offline play] The developer promises not to collect any data from ice sudoku, and you can enjoy all functions without network connection, no ads, no in-app purchases, and fully protect your privacy and security. [High freedom, customizable] Supports free circle change to painting, especially suitable for iPad with Pencil. Supports Sudoku customization, where the numbers are determined by you, and there are templates to generate axial symmetric Sudoku. The archive system is complete, and you can export 81 Sudoku strings to facilitate the management of your Sudoku library and free sharing. [Rich functions, simple and intuitive] The interface design is simple and clear, and continues to improve. iOS 13 and above devices support Sudoku scanning recognition. Automatically fill in candidate numbers, error protection, highlight candidate numbers, candidate number background color adjustment, quick fill, and more convenient functions are waiting for you to explore. [Continuous updates, support feedback] Whether you are a master who can solve all kinds of Sudoku easily, or a Sudoku beginner, you can find the right questions for you here. If you have better suggestions, please contact us so that we can hear your voice! Official website of ice sudoku: https://github.com/tropicalwzc/ice_sudoku.github.io

About

FlowClock

Transform your device's idle screen into a dynamic art piece. Customize clock styles, colors, fonts, and animations to create a unique visual experience. Enjoy elegant and personalized displays for your desktop or bedside.

Highlights
  • Dynamic backgrounds
  • Customizable clock styles
  • Adjustable colors and fonts
  • Animated displays
  • Personalized visual experience
  • Screensaver functionality
Features
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In FlowClock, time is not just a number; it is a flowing piece of art. You can freely switch dynamic backgrounds, clock styles, colors, fonts, and positions to create a personalized visual experience. With beautiful animations and customization options, FlowClock adds elegance and personality to your desktop, bedside, or screensaver, making every second radiate unique charm. FlowClock offers a free trial. Unlock membership to enjoy unlimited access to all features. Monthly and yearly subscriptions are available. All subscriptions will be charged through your Apple ID account and will automatically renew unless canceled 24 hours before the end of the current period. You can manage your subscription status in your account settings. For any errors or to provide feedback and suggestions, please contact us via the "Feedback" section in the app's settings. Privacy Policy: https://www.joydrif.com/flowclock/privacy-policy.html Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

ice sudoku4 screens
FlowClock3 screens

Verdict

The call

The clearest difference is price: FlowClock at Free against ice sudoku's $1.99. FlowClock also leads on review sentiment (100% vs 89%). ice sudoku's advantage is in-app purchases (none vs 3). On update cadence, ads, device support and iOS requirement 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

FlowClock is free to download; ice sudoku costs $1.99 up front. FlowClock sells 3 in-app purchases, starting at $0.99 per month. ice sudoku asks for nothing beyond the download.

UpkeepUpdate frequency

ice sudoku ships an update fortnightly, FlowClock every 2 weeks. The most recent releases landed on October 16, 2026 and October 10, 2026 respectively.

Scorecard4 real differences · 6 level
ice sudoku versus FlowClock: the parameters behind the verdict, then further details
Parameterice sudokuFlowClock
Price$1.99Free — better
Rating4.8 (15 ratings) — better—
Positive reviews88.9% of reviews100.0% of reviews — better
Number of ratings15 — better—
Update frequencyFortnightly — betterEvery 2 weeks
AdsNoNo
In-app purchasesNo — betterYes
MonetizationPaidFreemium — better
DevicesiPhone, iPadiPhone, iPad, Mac — better
Requires iOS18.017 — better
Further details — not scored
Size46 MB42 MB
Age rating4+4+
Developer子诚 王宇 刘

Customer experience

ice sudoku

All ratings15 ratings
Positive93.3%
Neutral6.7%
Negative0.0%
Written reviews36 reviews
Positive88.9%
Neutral5.6%
Negative5.6%

FlowClock

Written reviews3 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

ice sudoku

No in-app purchases

3 purchases

FlowClock

Subscriptions2
  • Monthly Plan$0.991 Month
  • Annual Plan$1.991 Year
One-time1
  • Lifetime Access$2.99

Questions

Is ice sudoku free?
ice sudoku costs $1.99, with no in-app purchases.
Is FlowClock free?
FlowClock is free to download, with in-app purchases available.
Do ice sudoku or FlowClock have ads?
Neither ice sudoku nor FlowClock shows ads.
Which is updated more often, ice sudoku or FlowClock?
ice sudoku ships an update fortnightly, and FlowClock every 2 weeks. Most recently, ice sudoku was updated on October 16, 2026 and FlowClock on October 10, 2026.

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