Camera Sudoku vs Not Evil Sudoku
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Camera Sudoku
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Camera Sudoku is for the puzzler wanting to understand the logic behind each solution entry. The systematic approach of five strategies, each with several methods, allows you to display every step in solving puzzles. Discover "Twins" to more quickly solve moderate puzzles. Understand Unique Rectangles and Chains for those pesky hard puzzles. HELP screens describe each method and include "screen shot" examples and the logic behind each method . One level of "UNDO" assists with "seeing what happened". And TWINS are optionally displayed for those puzzlers familiar with this solving technique. Puzzles can be entered with camera, photo album, or manually; can be saved, recalled, deleted and reordered. Text only or highlighted cell hints. "Possibles" or mini entered with a swipe. AND you can even solve 'em manually ! No Ads ! No in-APP-purchases !
Not Evil Sudoku
Enjoy a distraction-free Sudoku experience with helpful features like hints and real-time validation. Track your progress, compete globally, and customize the app with themes. Play daily puzzles for free or upgrade for unlimited games and advanced statistics.
- Fully offline play
- No ads or distractions
- Real-time move validation
- Shake for hints
- Daily puzzles with leaderboards
- Customizable themes and icons
- Notes and auto-clear notes
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A joyful sudoku-solving experience built natively for iPhone and iPad and optimized for a zen solving experience free from bloat and distraction. Designed to be easy to play and meet you where ever you are in your sudoku journey: a casual solver or a sudoku pro. Stuck on a puzzle? Shake your phone for hints and turn on move by move validation in settings to get immediate feedback on your solve. Tickle your brain as you learn new solving strategies and customize the app to your taste with themes and alternate app icons. Play a daily puzzle at a difficulty of your choice and see where you stack up with players across the globe. Or just turn off the stopwatch and relax. Key features: - Fully offline: no internet required - No ads or distractions - Real-time move validation to get immediate feedback - Shake for a hint on the next logical move - Leaderboards with assist tracking - Easy, Medium, and Hard difficulty levels - Light/Dark mode - Stopwatch and best time tracking - Notes: Keep track of candidates - Auto-clear Notes: removes candidate numbers automatically in row, column, and box when they become outdated - Speed demon: Lock numbers and place them in multiple tiles at once - Arithmophobia: Sudoku with letters instead of numbers - Daily streak tracking - Daily reminder notifications - Highlighter: tap a number to highlight all its instances on the board - Themes to customize the interface (some require Pro) - Alternate app icons (Pro) - Charts and statistics (Pro): track solve speed over time and puzzle count by difficulty Play the daily puzzle at your preferred difficulty for free without any limits on assists or game features. Upgrade to Pro with a one-time purchase to unlock unlimited games, detailed stats, more themes, and alternate app icons. Pro supports Family Sharing.
Screenshots
Verdict
The clearest difference is price: Not Evil Sudoku at Free against Camera Sudoku's $0.99. Not Evil Sudoku also leads on update cadence (every 9 days vs every 10 months). Camera Sudoku's advantage is in-app purchases (none vs 1). On ads, device support and iOS requirement 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
Not Evil Sudoku is free to download; Camera Sudoku costs $0.99 up front. Not Evil Sudoku sells 1 one-off in-app purchase. Camera Sudoku asks for nothing beyond the download.
Camera Sudoku ships an update every 10 months, Not Evil Sudoku every 9 days. The most recent releases landed on June 19, 2026 and September 24, 2026 respectively.
| Parameter | Camera Sudoku | Not Evil Sudoku |
|---|---|---|
| Price | $0.99 | Free — better |
| Rating | — | 4.6 (983 ratings) — better |
| Positive reviews | — | 73.7% of reviews |
| Number of ratings | — | 983 — better |
| Update frequency | Every 10 months | Every 9 days — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | — | Freemium |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 15.0 | 15 |
| Further details — not scored | ||
| Size | 5 MB | 23 MB |
| Age rating | 4+ | 4+ |
| Developer | Robert Carlson | Ashish Selvaraj |
Bugs and requests
Camera Sudoku
Not enough reviews yet to summarise bugs or requests.
Not Evil Sudoku
Reported bugs
2 issues- Disappearing numbers when closing the app
- Numbers swapping to incorrect spots
Requested features
6 requests- Add auto-clear notes option without move validation
- Provide more theme color options
- Implement a 'warm' mode similar to other sudoku apps
- Add ability to remove notes after number is placed
- Highlight all instances of a number in the puzzle
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- Remove a number as a choice when it has been placed successfully
In-app purchases
Camera Sudoku
No in-app purchases
Not Evil Sudoku
- Pro$4.99
Questions
Is Camera Sudoku free?
Is Not Evil Sudoku free?
Do Camera Sudoku or Not Evil Sudoku have ads?
Which is updated more often, Camera Sudoku or Not Evil Sudoku?
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