Comparison

Number Place Auto Solver vs Chempuz

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

Head to head
About

Number Place Auto Solver

Features
Read full description

This app "Number Place Auto Solver" can solve the Number Place (Sudoku) puzzles automatically by capturing the puzzle with the camera. So you can save your time. :) Steps to get solution are very simple. 1. Take a picture of Number Place (Sudoku) puzzle. 2. Correct the numbers captured, if necessary. 3. Tap "Solve" button and you can get the solution of the question. This app is useful when - you participate in prize competitions. - you want to save your time to solve Number Place (Sudoku) puzzles. - you confirm whether your solution is correct or not after solving yourself. - you make a new Number Place puzzle. Details to use is on the help page below. https://ojami.net/ios/nps/help/en_2_0_0.html Licenses This app uses "OpenCV" under the Apache License 2.0 to extract Sudoku puzzle from photos. This app uses "SwiftyTesseract" under the MIT License for character recognition.

About

Chempuz

Learn organic chemistry basics by creating molecules and completing puzzles. Trace functional groups to build compounds, score higher with complex structures, and use flashcards to memorize names. Enjoy learning through engaging gameplay.

Highlights
  • Create organic molecules by tracing functional groups
  • Build approximately 100 types of organic molecules
  • Score higher with more complex compound creation
  • Collect discovered compounds
  • Memorize molecule names with flashcards
  • Learn organic chemistry through gameplay
Features
Read full description

"Organic Chemistry Puzzle" to learn the basics of organic chemistry You can create compounds freely by tracing functional groups on the screen. You can create about 100 kinds of organic molecules. The score is high when you create complicated compounds. The collection shows compounds found. You can memorize the names of organic molecules with organic chemistry flashcards in Practice. You will learn organi chemistry while enjoying this game.

Screenshots

Number Place Auto Solver2 screens
Chempuz4 screens

Verdict

The call

The clearest difference is in-app purchases: Number Place Auto Solver at none against Chempuz's 2. On price, update cadence, ads 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. Chempuz sells 2 one-off in-app purchases. Number Place Auto Solver asks for nothing beyond the download.

UpkeepUpdate frequency

Number Place Auto Solver ships an update every 2 months, Chempuz every 5 weeks. The most recent releases landed on November 2, 2026 and November 3, 2026 respectively.

Scorecard1 real difference · 7 level
Number Place Auto Solver versus Chempuz: the parameters behind the verdict, then further details
ParameterNumber Place Auto SolverChempuz
PriceFreeFree
Positive reviews—100.0% of reviews
Update frequencyEvery 2 monthsEvery 5 weeks — better
AdsYesYes
In-app purchasesNo — betterYes
Monetization—Free with in-app purchases
DevicesiPhone, iPadiPhone, iPod
Requires iOS16.015.0 — better
Further details — not scored
Size34 MB57 MB
Age rating4+4+
DeveloperHIROSHI IMAJOTomatoAppLab

In-app purchases

None

Number Place Auto Solver

No in-app purchases

2 purchases

Chempuz

One-time2
  • 1 gem$0.29
  • 10 gems$1.99

Questions

Is Number Place Auto Solver free?
Number Place Auto Solver is free to download, with no in-app purchases.
Is Chempuz free?
Chempuz is free to download, with in-app purchases available.
Do Number Place Auto Solver or Chempuz have ads?
Both Number Place Auto Solver and Chempuz show ads.
Which is updated more often, Number Place Auto Solver or Chempuz?
Number Place Auto Solver ships an update every 2 months, and Chempuz every 5 weeks. Most recently, Number Place Auto Solver was updated on November 2, 2026 and Chempuz on November 3, 2026.

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