Comparison

Sudoku Trainer! vs Voltix Storm

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

Head to head
About

Sudoku Trainer!

This app offers a clean and efficient Sudoku puzzle experience with multiple difficulty levels and helpful tools like notes mode and candidate filling. Enjoy a smooth gameplay with features like auto-save, dark mode, and offline play.

Highlights
  • Multiple difficulty levels
  • Notes mode
  • Candidate filling button
  • Smart hints
  • Auto-save progress
  • Dark mode
  • Offline play
Features
Read full description

We built the Sudoku app we wanted to play - one that respects your time and intelligence. No flashy animations or unnecessary features. Just a well-crafted puzzle experience that feels right. What's included: • Multiple difficulty levels from Easy to Diabolical • A clean design that's easy on the eyes • Notes mode for tracking possibilities • Button to fill all candidates • Hints feature with smart analysis to help you find the next move • Auto-save so you never lose progress • Dark mode for night solving • Full accessibility support • Play history tracking to see what you've played, and what games you couldn't finish, and go back to them to try again Nice touches: • See how many of each number are left to place • Cells highlight to help you track rows, columns, and boxes • Gentle haptic feedback (if you like that sort of thing) • Timer and move counter for the competitive types • Works perfectly offline We focused on getting the basics right - smooth gameplay, readable numbers, and puzzles that load instantly. Whether you're killing time on the subway or unwinding before bed, it's just a solid Sudoku app that works the way you'd expect. Terms of use: https://sudoku-trainer.com/terms

About

Voltix Storm

Features
Read full description

Voltix Storm – brain games and fruit puzzles in one app. Mind Quiz Answer 15 questions per round. Choose Easy, Medium, or Hard and score points as you progress. Fruit Garden Match fruits in a 4×5 grid. Clear targets, beat 10 levels, and solve new challenges. Fruit Mosaic Classic sliding puzzle with fruit images. Finish each mosaic within the time limit. Features: 3 game modes: Quiz, Match-3, Sliding Puzzle 10 levels in Fruit Garden Multiple difficulty levels in Mind Quiz Leaderboard and global rating Simple controls and smooth gameplay Free to play. Download VoltixStorm and test your brain today.

Screenshots

Sudoku Trainer!4 screens
Voltix Storm4 screens

Verdict

The call

The clearest difference is in-app purchases: Voltix Storm at none against Sudoku Trainer!'s 3. Voltix Storm also leads on ads (none vs shown). Sudoku Trainer!'s advantage is device support (3 vs 1) and iOS requirement (15.1 vs 17). On price and update cadence 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. Sudoku Trainer! sells 3 in-app purchases, starting at $0.99 per month. Voltix Storm asks for nothing beyond the download.

UpkeepUpdate frequency

Sudoku Trainer! ships an update weekly, Voltix Storm every 9 days. The most recent releases landed on November 12, 2026 and November 9, 2026 respectively.

Scorecard4 real differences · 6 level
Sudoku Trainer! versus Voltix Storm: the parameters behind the verdict, then further details
ParameterSudoku Trainer!Voltix Storm
PriceFreeFree
Rating4.8 (6 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings6 — better—
Update frequencyWeekly — betterEvery 9 days
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS15.1 — better17
Further details — not scored
Size79 MB8 MB
Age rating4+4+
DeveloperNicholas NelsonDora Schoenholz

In-app purchases

3 purchases

Sudoku Trainer!

Subscriptions2
  • Sudoku Premium Monthly$0.991 Month
  • Sudoku Premium Annual$4.991 Year
One-time1
  • Sudoku Premium Lifetime$9.99
None

Voltix Storm

No in-app purchases

Questions

Is Sudoku Trainer! free?
Sudoku Trainer! is free to download, with in-app purchases available.
Is Voltix Storm free?
Voltix Storm is free to download, with no in-app purchases.
Do Sudoku Trainer! or Voltix Storm have ads?
Sudoku Trainer! shows ads; Voltix Storm does not.
Which is updated more often, Sudoku Trainer! or Voltix Storm?
Sudoku Trainer! ships an update weekly, and Voltix Storm every 9 days. Most recently, Sudoku Trainer! was updated on November 12, 2026 and Voltix Storm on November 9, 2026.

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