Comparison

ABC Solitaire HD vs John’s Sudoku

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

Head to head
About

ABC Solitaire HD

Relive the classic computer card game experience on your iOS device. This app brings the beloved built-in Windows card game to your phone and tablet, offering familiar fun for players of all ages. Enjoy quick, engaging gameplay anytime, anywhere.

Highlights
  • Classic Solitaire gameplay
  • Inspired by Windows version
  • Quick play sessions
  • Available on iOS devices
  • Suitable for all ages
Features
Read full description

In the past two decades, there was a computer game that cast a much more far-reaching influence on office workers from the globe than any other games, a game that existed for a few decades, beloved by tens of thousands of players and one that you can play in less than a minute at any time. People might have forgotten the game in a time when the game market is occupied by shooting games and games on social network platforms. This very game is the built-in card games in the Windows system, and here it is in your iOS devices, imitated from windows for you to relive the fun.

About

John’s Sudoku

This puzzle game offers a comprehensive Sudoku experience with six difficulty levels and the ability to create and share custom puzzles. Enjoy advanced features like error highlighting, auto-pencil, and undo/redo functions for a seamless gameplay experience.

Highlights
  • Six difficulty levels
  • User-defined puzzles
  • Error highlighting
  • Auto-pencil function
  • Undo/Redo functionality
  • Import/export puzzles
Features
Read full description

John's Sudoku is one of the most comprehensive Sudoku game systems. It randomly creates puzzles for six difficulty levels. You may never meet the same puzzle. But you can do the same one via user defined puzzle. Or you can define your own puzzle via Sudoku Book. You can also share the same puzzle with your friends via the importing/exporting function of this system. The followings are the summary of the function: 约翰的数独是最全面的数独游戏系统之一。 它随机地创建六个难度级别的拼图。 你可能永远也不会遇到同样的拼图。 不过您可以通过用户定义的拼图来做同样的拼图。 或者您可以从数独书来定义自己的拼图。 您还可以通过此系统的输入/输出功能与您的朋友分享相同的拼图。功能总结如下: 1. Randomly creates puzzle for six difficulty levels. 2. User can define his/her own puzzle, e.g. from Sudoku Book. 3. Check the status and highlight the error. 4. Easy to see the working cells with the most advanced highlighting function. 5. Auto-pencil the selected cell. 6. Undo/Redo function. 7. Auto-pencil (or auto-erase) all the cells with one tap. 8. Revert to the last clean state via 'Eliminate error input'. 9. Resolve the puzzle . 10. Import/export your puzzle to share with friends. 11. Reset to the original puzzle. 12. Game is auto-saved. You only need to tap Resume when you return to the app. 1. 随机产生六个难度级别的拼图。 2. 用户可以定义自己的拼图,例如从数独书。 3. 检查状态并突出显示错误。 4. 使用最先进的突出显示功能轻松查看工作单元格。 5. 自动标记所选单元格。 6. 撤消/重做功能。 7. 一键自动标记(或擦除)所有单元格。8. 可以通过 ‘消除错误输入’ 返回到上个正确状态 。 9. 拼图解题功能。 10. 通过输入/输出拼图以与朋友分享乐趣。 11. 重新设定到原始的拼图。 12. 游戏自动保存,您只需点击“恢复”即可。

Screenshots

ABC Solitaire HD4 screens
John’s Sudoku4 screens

Verdict

The call

The clearest difference is rating: John’s Sudoku at 5.0 against ABC Solitaire HD's 4.5. John’s Sudoku also leads on ads (none vs shown) and review sentiment (100% vs 71%). ABC Solitaire HD's advantage is update cadence (every 4 months vs every 17 months) and ratings volume (14 vs 2). On price, 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. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

John’s Sudoku holds the better App Store score, 5.0 against 4.5. That said, the two scores are not equally well evidenced: ABC Solitaire HD has 14 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 71% of ABC Solitaire HD's written reviews are positive against 100% of John’s Sudoku's.

UpkeepUpdate frequency

ABC Solitaire HD ships an update every 4 months, John’s Sudoku every 17 months. The most recent releases landed on October 29, 2026 and October 23, 2026 respectively.

Scorecard7 real differences · 3 level
ABC Solitaire HD versus John’s Sudoku: the parameters behind the verdict, then further details
ParameterABC Solitaire HDJohn’s Sudoku
PriceFreeFree
Rating4.5 (14 ratings)5.0 (2 ratings) — better
Positive reviews71.4% of reviews100.0% of reviews — better
Number of ratings14 — better2
Update frequencyEvery 4 months — betterEvery 17 months
AdsYesNo — better
In-app purchasesNoNo
MonetizationAd-supportedFree — better
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS12.0 — better14.4
Further details — not scored
Size84 MB12 MB
Age rating4+4+
Developer顺华 刘shaojun lin

Customer experience

ABC Solitaire HD

All ratings14 ratings
Positive85.7%
Neutral7.1%
Negative7.1%
Written reviews7 reviews
Positive71.4%
Neutral14.3%
Negative14.3%

John’s Sudoku

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews2 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

ABC Solitaire HD

No in-app purchases

None

John’s Sudoku

No in-app purchases

Questions

Is ABC Solitaire HD free?
ABC Solitaire HD is free to download, with no in-app purchases.
Is John’s Sudoku free?
John’s Sudoku is free to download, with no in-app purchases.
Which has better reviews, ABC Solitaire HD or John’s Sudoku?
John’s Sudoku is rated higher. ABC Solitaire HD averages 4.5 out of 5 from 14 ratings, while John’s Sudoku averages 5.0 from 2 ratings.
Do ABC Solitaire HD or John’s Sudoku have ads?
ABC Solitaire HD shows ads; John’s Sudoku does not.
Which is updated more often, ABC Solitaire HD or John’s Sudoku?
ABC Solitaire HD ships an update every 4 months, and John’s Sudoku every 17 months. Most recently, ABC Solitaire HD was updated on October 29, 2026 and John’s Sudoku on October 23, 2026.

Other comparisons