Comparison

Worm Stack vs Sudoka plus

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

Head to head
About

Worm Stack

Untangle colorful worms by tapping them to make them fly away. Rotate 3D mazes to find the best strategy and solve increasingly complex puzzles. This addictive game sharpens logic and critical thinking skills with its engaging gameplay and adorable graphics.

Highlights
  • Tap worms to make them fly away
  • Rotate 3D mazes
  • Progressive challenges with complex mazes
  • Strategic move planning
  • Adorable graphics and animations
Features
Read full description

Untangle the stacked worms! Worm stack is a challenging, addictive and super fun puzzle game. Tap the cute colored worms to make them fly away and solve puzzles in this 3D puzzle game. But the worms with wiggle eyes will only fly in one direction, so plan your moves! To rotate the maze and find the best ways to release all those worms, slide your finger across the screen. As you progress, the worms will form larger mazes and puzzles are becoming more difficult to solve, so you’ll need to get your thinking hat on to solve the puzzle game. KEY FEATURES -Engaging Gameplay: Tap the cute worms and watch them fly away as you solve each puzzle. -3D Rotational Puzzles: Slide your finger to rotate the maze and discover the best moves. -Progressive Challenges: Face larger and more complex mazes as you advance. -Strategic Thinking: Plan your moves carefully to release all the worms. -Adorable Graphics: Enjoy the charming, colorful design and playful worm animations. What are you waiting for? Challenge your brain with this tricky game right now! WHY PLAY WORM STACK -Mind and Eye Exercise: Keep your eyes and mind active and sharp with the satisfying taps -Brain Teasing: Improve your logic and critical thinking skills. -Critical Thinking Practice: Challenges your problem-solving abilities. Challenge yourself with this fun and addictive puzzle game. Enjoy hundreds of satisfying fun levels and hard levels with stunning mazes and strategies! Download now and start tapping away the worms!

About

Sudoka plus

Features
Read full description

Sudoka is more than just another Sudoku app — it is a complete platform for fans of logic puzzles with advanced constraint-based challenges. Whether you are a beginner or an experienced solver, Sudoka offers endless possibilities through its constantly growing collection of puzzle variants. Currently supported puzzle mechanics include: • German Whisper — adjacent cells differ by at least 5 • Dutch Whisper — adjacent cells differ by 4 or 5 • Renban — consecutive digits in any order • Parity — even/odd restrictions • Entropy — low (1–3), middle (4–6), and high (7–9) digit groups • Palindromes — palindrome lines • Consecutive — consecutive digits along a path • Modular Line — digits belonging to the same modulo class • Region Sum Line — sum constraints based on regions • Kropki Dots — black and white dots indicating ratio or consecutive relationships • XV — adjacent digits sum to 5 or 10 • Arrow Sudoku — digits along an arrow sum to the circled cell • Thermo Sudoku — digits increase along the thermometer • Diagonal Sudoku — both main diagonals must contain the digits 1–9 exactly once • Killer Cages — non-repeating digits with specified cage sums Puzzles can combine multiple rules within a single grid, creating unique and highly engaging logical challenges. The number of available puzzles continues to grow over time, and new rule variants are added regularly. Sudoka is designed to evolve alongside its community, ensuring that you will always have new puzzles to discover and solve.

Screenshots

Worm Stack4 screens
Sudoka plus4 screens

Verdict

The call

The clearest difference is in-app purchases: Sudoka plus at none against Worm Stack's 12. Sudoka plus also leads on ads (none vs shown) and iOS requirement (13.0 vs 15.0). On price, update cadence 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. Worm Stack sells 12 one-off in-app purchases. Sudoka plus asks for nothing beyond the download.

UpkeepUpdate frequency

Worm Stack ships an update every 2 weeks, Sudoka plus fortnightly. The most recent releases landed on October 15, 2026 and October 11, 2026 respectively.

Scorecard3 real differences · 7 level
Worm Stack versus Sudoka plus: the parameters behind the verdict, then further details
ParameterWorm StackSudoka plus
PriceFreeFree
Rating4.7 (1.7K ratings) — better—
Positive reviews52.2% of reviews—
Number of ratings1.7K — better—
Update frequencyEvery 2 weeks — betterFortnightly
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.013.0 — better
Further details — not scored
Size255 MB20 MB
Age rating9+17+
DeveloperBlack Candy LLCYevgeniy Zaichenko

Bugs and requests

Worm Stack

Reported bugs

3 issues
  • Game gets stuck at certain levels
  • Levels not loading or advancing properly
  • Hint button disappearing after updates

Requested features

3 requests
  • New shapes and critters
  • Pause/resume functionality
  • Spending options for coins

Sudoka plus

Not enough reviews yet to summarise bugs or requests.

In-app purchases

12 purchases

Worm Stack

One-time12
  • No Banner$0.99
  • Coins (500)$0.99
  • Coins(350)$1.99
Show 9 more
  • Coins (1500)$1.99
  • Safety net$2.99
  • Special Offer$2.99
  • Coins (3000)$2.99
  • No Banner Package$3.99
  • Coins(1600)$7.99
  • Coins(3500)$14.99
  • Coins(17500)$54.99
  • Coins(35000)$99.99
None

Sudoka plus

No in-app purchases

Questions

Is Worm Stack free?
Worm Stack is free to download, with in-app purchases available.
Is Sudoka plus free?
Sudoka plus is free to download, with no in-app purchases.
Do Worm Stack or Sudoka plus have ads?
Worm Stack shows ads; Sudoka plus does not.
Which is updated more often, Worm Stack or Sudoka plus?
Worm Stack ships an update every 2 weeks, and Sudoka plus fortnightly. Most recently, Worm Stack was updated on October 15, 2026 and Sudoka plus on October 11, 2026.

Other comparisons