Comparison

Sub Zero vs Sudoku Scan & Solver

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

Head to head
About

Sub Zero

Explore a collapsing deep-sea base as a lone survivor. Solve intricate puzzles and uncover secrets to save humanity from extinction. Your choices will determine the fate of everyone.

Highlights
  • Retro-futuristic puzzle adventure
  • Deep-sea base exploration
  • Intricate puzzle solving
  • Uncover secrets of Project Abyssus 2
  • Story-driven choices
  • AI companion guidance
Features
Read full description

Sub Zero is a retro-futuristic puzzle adventure set in the depths of Earth’s last refuge, Triton 631, a fragile deep-sea base tasked with saving humanity. As a young boy left behind during a critical midnight mission, you awaken to find the base on the brink of collapse. Alone, with only the guidance of the base’s AI, Kibbo, you must explore its deteriorating halls, solve intricate puzzles, and uncover the secrets of Project Abyssus 2, humanity’s desperate attempt to harness geothermal energy. Navigate the haunting remnants of a dying world, piece together the story of the crew, and face choices that could mean salvation—or the end—for everyone.

About

Sudoku Scan & Solver

Effortlessly solve any Sudoku puzzle by scanning or uploading an image. Get instant solutions, check for mistakes, and edit the board with an intuitive interface suitable for all skill levels.

Highlights
  • Scan Sudoku puzzles from photos
  • Instant puzzle solving
  • Mistake highlighting
  • Board editing
  • Intuitive interface
Features
Read full description

Sudoku Scan & Solve lets you capture or upload any Sudoku puzzle and get the solution in seconds! Features - Fast Scan: Snap a photo or choose an image for instant recognition - Instant Solve: Even the toughest puzzles are solved in a flash - Mistake Check: Highlight incorrect cells with clear visual feedback - Board Edit: Adjust or input numbers freely - Simple & Intuitive: Designed for both beginners and Sudoku masters Whether you’re practicing, tackling hard challenges, or aiming for prize contests, Sudoku Scan & Solve makes it effortless. Say goodbye to unsolved puzzles—scan, solve, and play smarter today!

Screenshots

Sub Zero4 screens
Sudoku Scan & Solver4 screens

Verdict

The call

The clearest difference is review sentiment: Sudoku Scan & Solver at 100% against Sub Zero's 0%. Sudoku Scan & Solver also leads on rating (5.0 vs 1.0). Sub Zero's advantage is ads (none vs shown) and update cadence (daily vs weekly). On price, ratings volume, 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

Sudoku Scan & Solver holds the better App Store score, 5.0 against 1.0. Both are backed by a comparable volume of ratings — 1 and 1 respectively. Written reviews point the same way: 0% of Sub Zero's written reviews are positive against 100% of Sudoku Scan & Solver's.

UpkeepUpdate frequency

Sub Zero ships an update daily, Sudoku Scan & Solver weekly. The most recent releases landed on November 4, 2026 and November 5, 2026 respectively.

Scorecard5 real differences · 5 level
Sub Zero versus Sudoku Scan & Solver: the parameters behind the verdict, then further details
ParameterSub ZeroSudoku Scan & Solver
PriceFreeFree
Rating1.0 (1 ratings)5.0 (1 ratings) — better
Positive reviews0.0% of reviews100.0% of reviews — better
Number of ratings11
Update frequencyDaily — betterWeekly
AdsNo — betterYes
In-app purchasesNoNo
MonetizationFree — betterAd-supported
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS13.012.0 — better
Further details — not scored
Size360 MB247 MB
Age rating4+4+
DeveloperPeter SandkvistTomoaki Okubo

Customer experience

Sub Zero

All ratings1 ratings
Positive0.0%
Neutral0.0%
Negative100.0%
Written reviews1 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

Sudoku Scan & Solver

Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Sub Zero

No in-app purchases

None

Sudoku Scan & Solver

No in-app purchases

Questions

Is Sub Zero free?
Sub Zero is free to download, with no in-app purchases.
Is Sudoku Scan & Solver free?
Sudoku Scan & Solver is free to download, with no in-app purchases.
Which has better reviews, Sub Zero or Sudoku Scan & Solver?
Sudoku Scan & Solver is rated higher. Sub Zero averages 1.0 out of 5 from 1 ratings, while Sudoku Scan & Solver averages 5.0 from 1 ratings.
Do Sub Zero or Sudoku Scan & Solver have ads?
Sudoku Scan & Solver shows ads; Sub Zero does not.
Which is updated more often, Sub Zero or Sudoku Scan & Solver?
Sub Zero ships an update daily, and Sudoku Scan & Solver weekly. Most recently, Sub Zero was updated on November 4, 2026 and Sudoku Scan & Solver on November 5, 2026.

Other comparisons