Qorbit vs Not Evil Sudoku
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Qorbit
Engage in a space arcade puzzler designed to enhance your peripheral vision. Unlock cosmic objects for advantages, collect points, trigger events, and gather man-made space artifacts.
- Space arcade puzzler
- Enhance peripheral vision
- Unlock cosmic objects
- Collect points
- Start cosmic events
- Collect space objects
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A space arcade puzzler for your spare time. Improve your peripheral view field! Qorbit is an easy to play arcade puzzler with interesting game mechanics. Unlock cosmic objects which give you certain advantages in the game, collect points, start cosmic events and collect man-made space objects like the space shuttle!
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of candidates - Auto-clear Notes: removes candidate numbers automatically in row, column, and box when they become outdated - Speed demon: Lock numbers and place them in multiple tiles at once - Arithmophobia: Sudoku with letters instead of numbers - Daily streak tracking - Daily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
Qorbit and Not Evil Sudoku both sit at 4.6 stars, but that hides the real split: 93% of Qorbit's written reviews are positive against 75% of Not Evil Sudoku's. Qorbit also leads on iOS requirement (8.0 vs 15). Not Evil Sudoku's advantage is ratings volume (1.1K vs 80). On price, rating, update cadence and ads 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. Qorbit sells 1 one-off in-app purchase and Not Evil Sudoku sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
On the App Store both sit at effectively the same score — 4.6 for Qorbit against 4.6 for Not Evil Sudoku. That said, the two scores are not equally well evidenced: Not Evil Sudoku has 1.1K ratings behind it against 80, so its average is the more settled of the two. Written reviews are what separate them: 93% of Qorbit's written reviews are positive against 75% of Not Evil Sudoku's.
Qorbit ships an update every 2 weeks, Not Evil Sudoku every 9 days. The most recent releases landed on October 20, 2026 and October 27, 2026 respectively.
| Parameter | Qorbit | Not Evil Sudoku |
|---|---|---|
| Price | Free | Free |
| Rating | 4.6 (80 ratings) — better | 4.6 (1.1K ratings) |
| Positive reviews | 93.2% of reviews — better | 74.7% of reviews |
| Number of ratings | 80 | 1.1K — better |
| Update frequency | Every 2 weeks | Every 9 days — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Freemium |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 8.0 — better | 15 |
| Further details — not scored | ||
| Size | 24 MB | 23 MB |
| Age rating | 4+ | 4+ |
| Developer | Max Gittel | Ashish Selvaraj |
Customer experience
Qorbit
Not Evil Sudoku
Bugs and requests
Qorbit
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
Qorbit
- Remove ads$1.99
Not Evil Sudoku
- Pro$4.99







