Comparison

Sudoku² vs Vertical Math Workbook 2026

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

Head to head
About

Sudoku²

Engage with an endless supply of Sudoku puzzles, ranging from easy to challenging difficulty levels. Features include a distraction-free input pad, note-taking with color options, and customizable error checking. Unlock new levels by completing a single puzzle.

Highlights
  • Infinite Sudoku puzzles
  • Adjustable difficulty levels
  • Distraction-free input pad
  • Color-coded note-taking
  • Manual/automatic note-taking
  • Customizable error checking
  • Multiple highlight modes
Features
Read full description

Infinite free Sudoku puzzles with levels from Easy to Evil! Key features: -Solve just one puzzle to unlock next level -Input pad with no distractions -Redo/Undo -Taking/Erasing notes with different colors -Taking notes manually or automatically -Error check can be enabled or disabled -Multiple highlight mode

About

Vertical Math Workbook 2026

Features
Read full description

Vertical Math Workbook is an offline math practice app for elementary students and parents, focused on column addition, subtraction, multiplication, and division. Users can generate exercises by grade level, operation type, and digit range, fill in each step of the vertical calculation, save mistakes, and review them repeatedly. All data is stored only on the device. No login, internet connection, or personal data collection is required. It is suitable for after-school review, holiday practice, parent tutoring, and daily calculation training.

Screenshots

Sudoku²4 screens
Vertical Math Workbook 20264 screens

Verdict

The call

The clearest difference is price: Sudoku² at Free against Vertical Math Workbook 2026's $0.29. Sudoku² also leads on device support (4 vs 2) and iOS requirement (12.0 vs 15.6). Vertical Math Workbook 2026's advantage is in-app purchases (none vs 1) and ads (none vs shown).

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

Sudoku² is free to download; Vertical Math Workbook 2026 costs $0.29 up front. Sudoku² sells 1 one-off in-app purchase. Vertical Math Workbook 2026 asks for nothing beyond the download.

UpkeepUpdate frequency

Sudoku² ships an update every 4 months, Vertical Math Workbook 2026 every 6 weeks. The most recent releases landed on October 23, 2026 and September 18, 2026 respectively.

Scorecard6 real differences · 4 level
Sudoku² versus Vertical Math Workbook 2026: the parameters behind the verdict, then further details
ParameterSudoku²Vertical Math Workbook 2026
PriceFree — better$0.29
Rating3.9 (10 ratings) — better—
Positive reviews80.8% of reviews—
Number of ratings10 — better—
Update frequencyEvery 4 monthsEvery 6 weeks — better
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPod, Apple Watch — betteriPhone, iPod
Requires iOS12.0 — better15.6
Further details — not scored
Size6 MB5 MB
Age rating4+4+
Developer春 李Nanjing Yunxiaochuang Technology Co., Ltd

In-app purchases

1 purchases

Sudoku²

One-time1
  • Remove Advertisement$0.99
None

Vertical Math Workbook 2026

No in-app purchases

Questions

Is Sudoku² free?
Sudoku² is free to download, with in-app purchases available.
Is Vertical Math Workbook 2026 free?
Vertical Math Workbook 2026 costs $0.29, with no in-app purchases.
Do Sudoku² or Vertical Math Workbook 2026 have ads?
Sudoku² shows ads; Vertical Math Workbook 2026 does not.
Which is updated more often, Sudoku² or Vertical Math Workbook 2026?
Sudoku² ships an update every 4 months, and Vertical Math Workbook 2026 every 6 weeks. Most recently, Sudoku² was updated on October 23, 2026 and Vertical Math Workbook 2026 on September 18, 2026.

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