Not Evil Sudoku vs Hidden Objects
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
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of candidates - Auto-clear Notes: removes candidate numbers automatically in row, column, and box when they become outdated - Speed demon: Lock numbers and place them in multiple tiles at once - Arithmophobia: Sudoku with letters instead of numbers - Daily streak tracking - Daily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.
Hidden Objects
Embark on a neon-themed puzzle adventure to find hidden objects in vibrant pictures. Explore diverse locations and complete challenges without time pressure. Perfect for relaxation and fun for all ages.
- Neon-themed hidden object puzzles
- Diverse mystery locations
- Offline play supported
- No timers or time limits
- Hints available
- Unique author drawings
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Start your hunt for hidden objects! Hidden Objects - Neon Secrets is a hidden object puzzle adventure game in which you will find hidden objects in pictures! Get ready for a big hidden object Journey in the mystery neon world! At each level you will have to find ten hidden objects. Each level represents a new location – manor, hotel, swimming pool, house, beach, shop, museum and much more. Enjoy the neon atmosphere of the hidden object puzzle game! In Hidden Objects - Neon Secrets Game you have to find various hidden objects - the objects to be found will be displayed at the bottom of the screen and your task is to find them all on a big picture. Hidden items can be anywhere. Seek and find all items and complete hidden object challenges. Why you will love “Hidden Objects - Neon Secrets” - find the objects adventure game: - The game is completely free. - Unusual author's drawings in a special, neon style. - Offline mode - enjoy the Hidden Object game wherever you are! - The game is not difficult. Just relax and have fun! - There are no timers or time limits in the game. No need to hurry. - Incredible seek-and-find adventure that adults and kids will love. - 10 mysterious items in each level. - Hints is available and will help if you get stuck If you are looking for an amazing hidden object puzzle adventure, Hidden Objects - Neon Secrets game is what you need for fun and relax! So what are you waiting for? Download Hidden Objects - Neon Secrets game and enjoy!
Screenshots
Verdict
The clearest difference is in-app purchases: Hidden Objects at none against Not Evil Sudoku's 1. Not Evil Sudoku's advantage is ads (none vs shown) and review sentiment (75% vs 40%). On price, rating, monetization model 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. Not Evil Sudoku sells 1 one-off in-app purchase. Hidden Objects asks for nothing beyond the download.
On the App Store both sit at effectively the same score — 4.6 for Not Evil Sudoku against 4.5 for Hidden Objects. That said, the two scores are not equally well evidenced: Not Evil Sudoku has 1.1K ratings behind it against 112, so its average is the more settled of the two. Written reviews are what separate them: 75% of Not Evil Sudoku's written reviews are positive against 40% of Hidden Objects's.
Not Evil Sudoku ships an update every 9 days, Hidden Objects every 6 months. The most recent releases landed on October 25, 2026 and October 24, 2026 respectively.
| Parameter | Not Evil Sudoku | Hidden Objects |
|---|---|---|
| Price | Free | Free |
| Rating | 4.6 (1.1K ratings) — better | 4.5 (112 ratings) |
| Positive reviews | 74.7% of reviews — better | 40.0% of reviews |
| Number of ratings | 1.1K — better | 112 |
| Update frequency | Every 9 days — better | Every 6 months |
| Ads | No — better | Yes |
| In-app purchases | Yes | No — better |
| Monetization | Freemium | Free with in-app purchases |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15 | 15.0 |
| Further details — not scored | ||
| Size | 23 MB | 99 MB |
| Age rating | 4+ | 4+ |
| Developer | Ashish Selvaraj | Alexey Romanov |
Customer experience
Not Evil Sudoku
Hidden Objects
Bugs and 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
Hidden Objects
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Not Evil Sudoku
- Pro$4.99
Hidden Objects
No in-app purchases









