Sudoku Extreme Hard Puzzles vs Sudoku + Auto
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Sudoku Extreme Hard Puzzles
Engage your mind with classic Sudoku puzzles designed for all skill levels. Enjoy a customizable, ad-free experience with various themes and difficulty settings. Track your progress and stats while sharpening your logic skills.
- Multiple difficulty levels
- Customizable themes and settings
- Notes and hint features
- Haptic feedback
- Undo, delete, and redo functions
- Detailed game statistics and progress graphs
- Quick fill and auto-fill options
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Sudoku Extreme is a beautiful way to experience classic Sudoku number puzzles for both beginners & advanced players! It includes over 100,000 puzzles from easy to hard levels. It works in airplane mode without wifi, no ads, and no subscriptions. It's a great way to keep your mind active while relaxing to pass time. Each puzzle has only one solution. The puzzle comes with a few cells pre-filled. Your job is to fill the remaining empty cells. Fill the empty cells with numbers 1-9 in a way that each row, column and block (3x3 cells) only contains a single instance of the number 1-9. - Over 100,000 puzzles in 6 difficulty levels: beginner, easy, medium, hard, unfair and extreme. - Highly customizable with many beautiful themes as well as settings to customize the app exactly the way you like it. App comes with both light and dark amoled themes to be comfortable on your eyes! - The simple to use notes and hint features help you if you get stuck but I encourage spending time trying to figure out the puzzles without using hints. Cells filled with use of hints don't get any points. - Haptic feature gives a positive vibration when correct and negative vibration when wrong answer is filled in the sodoku puzzle. This can be disabled in settings. - If you make a mistake you can use the undo, delete and redo buttons. Note that each mistake deducts points from your overall score. - Long press the undo button to restart the game - After a game is finished, you get your overall stats like total time spent, best time, average time, overall score, hints used, mistakes made etc. Sudoku Extreme also comes with a graph of how your scores progress over time. As you play more difficult levels, you get more score. Each higher level gives twice the number of points as the previous level. - Game can be paused and you can resume the previous game when you come back. - Sudoku Extreme can automatically pre-fill the notes and auto-remove them when they are used in a row, column or block. Though I encourage disabling this setting and filling it manually as it makes your brain more active! Manually filling notes also gets you extra points! Long pressing the notes button lets you fill remaining notes automatically at any point in the game. Swiping up and down on the notes button still lets you toggle their display hidden/unhidden. - The quick fill feature lets you tap-and-hold a number and then simply tap cells and it will fill it with that number. - Long press a cell with only 1 candidate note to quick fill it. - Numbers show how many instances of that number are left to be filled in the puzzle. When a number has been used 9 times correctly, it hides itself. You can disable this setting if you like. - You can swipe up/down to enter notes numbers quickly without having to enter edit/note mode (setting needs to be switched on) - There is a setting to allow up to 3 mistakes without being penalized in your score. - "Export Scores" from the app. This can be used in Excel. - No intrusive ads, trackers, subscriptions, or other nonsense. - As a solo indie developer, there are ongoing costs of developing and maintaining the game. You can try out all difficulty levels and customizations during free trial. A one-time-only purchase unlocks over 100,000 puzzles and all difficulty levels for lifetime. It also helps me keep the game ad-free. No subscription. It's a small and fair amount which helps cover development costs of future updates. You can also leave me a positive rating on the app store as that helps get the word out to others! Thank you for supporting me. Hope you enjoy the puzzles :) Send me feedback at: pran@pranapps.com
Sudoku + Auto
This classic number puzzle game offers thousands of puzzles with adjustable difficulty levels. It features an innovative Auto-Note function that automatically fills in potential numbers, allowing players to focus on solving. Enjoy daily challenges, special events, and progress through increasingly difficult levels.
- Automatic note-taking
- Thousands of puzzles
- Multiple difficulty levels
- Daily challenges
- Special themed events
- Instructional hints
- Customizable palettes
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Sudoku + Auto-Note is the best of classic sudoku, plus Auto-Note! No more missing a cell. No more overlooking a possibility. Auto-Note adds all the notes for you, so you can spend your time solving a puzzle instead of getting ready. SOMETHING FOR EVERYONE Whether you're a seasoned player or just starting out, this is the game for you. There are thousands of puzzles at all levels of difficulty. Start with Easy and work your way up to Diabolical. Auto-Note can add the notes for you, or you can turn it off and add notes yourself. Notes are updated when assigning a cell. If you like, Auto-Check will highlight your mistakes. Or, turn everything off for a more pencil-and-paper feel. 3 WAYS TO PLAY Daily Challenges Build your streak by completing daily challenge puzzles. Special Events Earn badges by completing event-themed puzzles before time runs out. Themes include Pirate's Plunder, Weekend Campout, Pharoah's Tomb, and lots more. Level Up Start by solving Easy puzzles and work your way up through Intermediate and Challenging. Go on to Fiendish and, finally, try your hand at truly Diabolical puzzles. MORE FEATURES Daily Streak Reminders - Enable this option and choose a time of day for a reminder. Instructional Hints - These explain the necessary strategy step by step. Or choose brief one-step hints. Palettes - Three choices keep things easy on the eyes, even in the dark. Single Solutions - Every puzzle has just one solution. Fix Notes - In a jam? Correct and add missing notes from the Mistakes (!) menu. Scoring - Toggle the optional scoreboard from the game settings menu. Timer - Toggle the optional timer from the game settings menu. Download Sudoku + Auto-Note now. Questions? Feature requests? Let us know what you think. Visit funnerware.com's Feedback page. Thanks for playing!
Screenshots
Verdict
The clearest difference is ads: Sudoku Extreme Hard Puzzles at none against Sudoku + Auto's shown. Sudoku Extreme Hard Puzzles also leads on update cadence (every 5 days vs every 5 weeks) and ratings volume (827 vs 63). Sudoku + Auto's advantage is review sentiment (85% vs 64%) and iOS requirement (13.0 vs 15.0). On price, rating, in-app purchases and monetization model 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. Sudoku Extreme Hard Puzzles sells 1 one-off in-app purchase and Sudoku + Auto sells 6 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.
On the App Store both sit at effectively the same score — 4.5 for Sudoku Extreme Hard Puzzles against 4.6 for Sudoku + Auto. That said, the two scores are not equally well evidenced: Sudoku Extreme Hard Puzzles has 827 ratings behind it against 63, so its average is the more settled of the two. Written reviews are what separate them: 64% of Sudoku Extreme Hard Puzzles's written reviews are positive against 85% of Sudoku + Auto's.
Sudoku Extreme Hard Puzzles ships an update every 5 days, Sudoku + Auto every 5 weeks. The most recent releases landed on November 6, 2026 and November 3, 2026 respectively.
| Parameter | Sudoku Extreme Hard Puzzles | Sudoku + Auto |
|---|---|---|
| Price | Free | Free |
| Rating | 4.5 (827 ratings) | 4.6 (63 ratings) — better |
| Positive reviews | 64.0% of reviews | 84.8% of reviews — better |
| Number of ratings | 827 — better | 63 |
| Update frequency | Every 5 days — better | Every 5 weeks |
| Ads | No — better | Yes |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.0 | 13.0 — better |
| Further details — not scored | ||
| Size | 29 MB | 8 MB |
| Age rating | 4+ | 4+ |
| Developer | Pranoy Chowdhury | Funnerware |
Customer experience
Sudoku Extreme Hard Puzzles
Sudoku + Auto
Bugs and requests
Sudoku Extreme Hard Puzzles
Reported bugs
2 issues- Scoring system inconsistencies at higher levels
- Animation issues causing delays in rapid input
Requested features
5 requests- Option to disable auto-fill notes
- Ability to resume unfinished games
- Coloring and advanced note-taking tools
- Sync progress across devices
- Difficulty level selector before starting a game
Sudoku + Auto
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Sudoku Extreme Hard Puzzles
- Sudoku Extreme Premium$9.99
Sudoku + Auto
- All Puzzle Levels$1.99
- All Puzzle Levels$2.99
- Ad Removal$3.99
Show 3 moreShow fewer
- All Puzzle Levels2 variants$3.99
- Premium Combo2 variants$4.99
- Premium Combo2 variants$5.99
Questions
Is Sudoku Extreme Hard Puzzles free?
Is Sudoku + Auto free?
Which has better reviews, Sudoku Extreme Hard Puzzles or Sudoku + Auto?
Do Sudoku Extreme Hard Puzzles or Sudoku + Auto have ads?
Which is updated more often, Sudoku Extreme Hard Puzzles or Sudoku + Auto?
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