# Eric's Sudoku –Classic Puzzles — From Simple to Expert

> Classic Sudoku number puzzle game with multiple difficulty levels and over 5,500 puzzles. (iPhone/iPad app by Eric Snider.)

- Source: https://appshunter.io/ios/app/erics-sudoku-classic-puzzles/id555050672 (this page in markdown: same URL + `.md`)
- Developer: [Eric Snider](https://appshunter.io/developer/331397631)
- Category: Games, Entertainment, Board, Strategy
- Price: Free with in-app purchases
- Rating: 4.70/5 from 1,778 App Store ratings · 152 written reviews indexed
- Age rating: 4+
- Requires: iOS 15.6 · 53 MB
- Languages: American English, European Spanish
- Released: 2013-06-25
- Data updated: 2026-08-30
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/erics-sudoku-classic-puzzles/id555050672/reviews.md

## What is Eric's Sudoku?

Play this fun and easy-to-use Sudoku game on your iPhone or iPad. Great for beginners and a challenge for experts. It has beautiful graphics, smooth game play and subtle sound effects.

Sudoku is a number puzzle game where you try to fill in the blanks. Each digit (from 1 to 9) can only appear once in each row, column, or 3x3 sub-grid. There is only one solution for each puzzle. Here's an example:

If a row looks like this:
    1 3 _ 4 5 6 8 9 7
Then the number 2 is the only possible answer for that empty space, because the numbers 13456789 are all already in that row. By looking to see which numbers are already in a row, column and 3x3 sub-grid you can figure out what numbers go in each cell. (It sounds more complicated than it is! The "SIMPLE" level puzzles make it pretty easy to get started.)

If you love puzzle and card games try my other games too!

DESCRIPTION 

Eric's Sudoku has 5 difficulty levels of puzzles from SIMPLE to EXPERT. Tap the "Hint" button if you get stuck. Use the pen to enter your answers and use the pencil to keep notes. Earn tokens as you solve puzzles and complete achievements to unlock more Puzzle Packs.

FEATURES 
• Fun achievements to earn Tokens
• Great for beginners or experts
• Over 5,500 puzzles
• Beautiful art, cool particle effects and a fun user-interface 
• Tap a number to highlight all matching numbers
• Auto-remove pencil notes feature  
• Subtle sound effects so you can enjoy your music 
• Game state saved when interrupted 
• Portrait & Landscape support on iPad
• Right hand/Left hand settings on iPad
• Hide pencil for quicker play

Follow me on Facebook! http://www.facebook.com/sniderware

Try my new daily puzzle game, Eric's Ultimate Puzzles!

https://sniderware.com/erics-sudoku-privacy-policy

## Key features

- 5 difficulty levels
- Over 5,500 puzzles
- Hint button
- Pen and pencil modes
- Token-based achievement system
- Auto-remove pencil notes
- Highlight matching numbers

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Some Tokens | $0.99 | one-time |
| More Tokens | $2.99 | one-time |
| A lot of Tokens | $3.99 | one-time |
| Unlimited Tokens & remove ads | $4.99 | one-time |


## What do users think of Eric's Sudoku?

Overall sentiment: positive

**Pros**

- 👍 Well-designed interface
- 🚀 Smooth gameplay
- 💡 Helpful features like pencil mode
- 👍 Variety of difficulty levels
- 👍 Enjoyable and challenging

**Cons**

- 🔒 Concerns about monetization and ads
- 🐛 Occasional bugs and crashes
- 🔋 Drains battery life
- 👎 Buttons too close to ads

**Commonly reported bugs**

- Inconsistent saving of progress
- Puzzle ratings not always accurate

**Most requested features**

- Dark mode option
- Ability to disable mistake highlighting
- More puzzle packs and higher difficulty levels

## Recent user reviews (10 of 152)

All indexed reviews: https://appshunter.io/ios/app/erics-sudoku-classic-puzzles/id555050672/reviews.md

### 5/5 — Perfect

*2026-03-31, version 1.6*

I’ve been playing this for decades to relax. I can pick the challenge level…also letting me know when I picked the wrong # avoids the usual Sudoku frustration.

### 5/5 — Want my old stuff back

*2026-02-17*

I LOVE this game, and have had it since version one. Eric keeps it up-to-date, and I play it every day. But, tonite when I opened it, I was horrified to find that the clear, easy to see boxes in the various lists of puzzles are nearly invisible. The color that shows which number I’m working on is an ugly orange scribble! I want my old colors and boxes back, please! Eric, I’m sure you thought this would look great with the darned “glass” OS, that Apple forced on us, but it doesn’t. I cannot use the “glass” OS settings. Please at least give us the option to go back to the way the game looked yesterday. P.S. anyone else remember Eric’s Fountains? 😄

**Developer response:** Sorry about the change in look – I think this was actually just the game automatically changing its look to match your device's "Dark Mode" setting. In good news, I just released an update to Eric's Sudoku (version 1.6) that has a Dark Mode setting on the Settings screen so you can customize it. Turn that to "Light" and you should be back to the usual way Sudoku looks, all the time!

I was recently messing around getting "Eric's Cascade" working again and will see if I can figure out a good way to release it again.

### 2/5 — Not free anymore

*2025-06-14*

I used to love Eric’s games. They are well engineered. But instead of rolling over points to continue playing, they don’t give you enough points to do that because they want you to buy the points. For example, I just completed a quarter of my sudoku level and got five points.  To roll over into another game I need 60 points.

**Developer response:** Sorry it's not rewarding you enough Tokens – if you're still having trouble, and interested, send an email to me at eric@sniderware.com and I'll see what I can do. Also, are there any Achievements available to complete because that's a good way to earn Tokens. And of course you can watch an ad to earn Tokens too.

### 1/5 — One

*2024-10-11, version 1.5*

I am a beginner and I find this challenging but not overwhelming. Lots of fun and good for focus and concentration.

### 5/5 — Rating

*2023-10-02*

I really enjoy play this sudoku game. I haven't gone too far on on my 2nd 100 puzzle. I hope as I continue it will not cost me money. It's really challenging and I like playing against the clock. But I don't understand how u accumulate the tokens. Sincerely Nancy

### 5/5 — Best sudoku I’ve found

*2023-08-24, version 1.5*

I have tried several sudoku apps and I like this one best by far. Try it, you’ll like it.

### 5/5 — Best on net

*2023-06-05, version 1.5*

This games is the best on the net for sure. It helps with the paper games as well. Addictive for sure .

### 5/5 — Best Sudoku app out there

*2023-05-24*

Here is the comment I never sent three years ago:
This app has hundreds of puzzles for all levels of players. I bought the solitaire and sudoku bundle and I love it. No ads. The one addition I would love is for a nighttime mode in Sudoku. Black squares, white numbers. Thanks for a quality game. I play daily.

Update:
Now you’ve done the only thing that could make this app better. Dark mode! My eyes and sleep patterns thank you! 🤩

### 5/5 — Choices

*2022-10-22*

I really like being able to choose between easy, medium, and hard. The ease of using the small numbers is a big plus! The pencil for notes and the pen are the best!

### 5/5 — Eric’s Sudoku

*2022-09-25, version 1.4.2*

Have played Eric’s game nightly for a decade. Clean format, user-friendly in all ways. Best Sudoku program I can find. Thank you!

## Frequently asked questions about Eric's Sudoku

### What is Eric's Sudoku?

Eric's Sudoku is a digital version of the classic Sudoku number puzzle game. It allows players to fill in grids with numbers from 1 to 9, following specific rules for rows, columns, and 3x3 sub-grids. The game is designed to be enjoyable for both new players and seasoned Sudoku enthusiasts.

### What are the key features of Eric's Sudoku?

The app offers over 5,500 puzzles across five difficulty levels, from Simple to Expert. It includes helpful features like a hint button, pen and pencil modes for entering answers and notes, and an auto-remove pencil notes function. Players can also earn tokens through achievements to unlock additional puzzle packs.

### Is Eric's Sudoku free to play?

The application is free to download and play. It offers in-app purchases, which may include options to unlock more puzzle packs or other content. The core game and a substantial number of puzzles are available without any cost.

### What devices is Eric's Sudoku compatible with?

The game is available for iPhone and iPad. It supports both portrait and landscape orientations on the iPad, and offers right-hand/left-hand settings for enhanced usability on the device.

### How does Sudoku work?

Sudoku is a logic-based number-placement puzzle. The objective is to fill a 9x9 grid with digits so that each column, each row, and each of the nine 3x3 sub-grids contains all of the digits from 1 to 9. The game provides a partially filled grid, and players use logic to deduce the remaining numbers.

## Version history (last 5 releases)

### 1.7 — 2026-05-07

• Added a "Start All Puzzles Again" button to the Statistics screen for any users who want a fresh start, especially those who have already solved all 5,000+ puzzles :)
• Behind the scenes bug fixes and updates

### 1.6 — 2026-03-26

• Added dark mode setting so you can set to Light, Dark, or have it match your device's setting
• Lots of small bug fixes

### 1.5 — 2023-05-22

• Spanish localization
• Some small bug fixes
• Behind-the-scenes updates

### 1.4.2 — 2020-09-19

• Fix some layout issues on iPad Pro
• Updates for iOS 14

» Ready to try a new kind of solitaire game? Try "Finished!" – it's fun and there's an interactive tutorial. Can you put all the cards in order before you run out of coffee and candy?

### 1.4.1 — 2020-08-07

• Bug fixes
• Updates for iOS 13

Try my new solo card game "Finished! by Friedemann Friese" because you'd like a new challenge. :)

## Apps similar to Eric's Sudoku

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [Sudoku - Brain Puzzle Games](https://appshunter.io/ios/app/sudoku-brain-puzzle-games/id1442749804) | 4.8 (306,510) | Free | Games |
| [Sudoku :)](https://appshunter.io/ios/app/sudoku/id398990729) | 4.7 (58,951) | Free | Games |
| [Sudoku ∙](https://appshunter.io/ios/app/sudoku/id727577974) | 4.7 (1,434) | Free | Games |
| [Sudoku Color - Classic Puzzle!](https://appshunter.io/ios/app/sudoku-color-classic-puzzle/id1503221765) | 4.8 (34,525) | Free | Games |
| [Nonogram: Picture Cross Sudoku](https://appshunter.io/ios/app/nonogram-picture-cross-sudoku/id1494084760) | 4.7 (5,940) | Free | Games |
| [Sudoku Master Edition](https://appshunter.io/ios/app/sudoku-master-edition/id1260190370) | 4.6 (7,892) | Free | Games |

## More apps by Eric Snider

- [Eric's Klondike Solitaire Pack](https://appshunter.io/ios/app/erics-klondike-solitaire-pack/id331397628)
- [Eric's Klondike Solitaire](https://appshunter.io/ios/app/erics-klondike-solitaire/id335624387)
- [Eric's Klondike Sol HD Lite](https://appshunter.io/ios/app/erics-klondike-sol-hd-lite/id365847824)
- [Eric's Spider Solitaire](https://appshunter.io/ios/app/erics-spider-solitaire/id366158571)
- [Eric's Spider Solitaire HD](https://appshunter.io/ios/app/erics-spider-solitaire-hd/id366159742)
- [Eric's FreeCell Solitaire HD](https://appshunter.io/ios/app/erics-freecell-solitaire-hd/id366161039)

All apps by Eric Snider: https://appshunter.io/developer/331397631

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-30.*