Number Place Auto Solver vs Chempuz
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Number Place Auto Solver
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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.
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.
- 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
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"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
Verdict
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
Both are free to download. Chempuz sells 2 one-off in-app purchases. Number Place Auto Solver asks for nothing beyond the download.
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.
| Parameter | Number Place Auto Solver | Chempuz |
|---|---|---|
| Price | Free | Free |
| Positive reviews | — | 100.0% of reviews |
| Update frequency | Every 2 months | Every 5 weeks — better |
| Ads | Yes | Yes |
| In-app purchases | No — better | Yes |
| Monetization | — | Free with in-app purchases |
| Devices | iPhone, iPad | iPhone, iPod |
| Requires iOS | 16.0 | 15.0 — better |
| Further details — not scored | ||
| Size | 34 MB | 57 MB |
| Age rating | 4+ | 4+ |
| Developer | HIROSHI IMAJO | TomatoAppLab |
In-app purchases
Number Place Auto Solver
No in-app purchases
Chempuz
- 1 gem$0.29
- 10 gems$1.99
Questions
Is Number Place Auto Solver free?
Is Chempuz free?
Do Number Place Auto Solver or Chempuz have ads?
Which is updated more often, Number Place Auto Solver or Chempuz?
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