# Good Sudoku+ — Sudoku that loves you

> AI-powered Sudoku game with intelligent hints and quality puzzles. (iPhone/iPad app by Zach Gage.)

- Source: https://appshunter.io/ios/app/good-sudoku-plus/id1551669399 (this page in markdown: same URL + `.md`)
- Developer: [Zach Gage](https://appshunter.io/developer/294263418)
- Category: Games, Puzzle
- Price: Free
- Rating: 4.10/5 from 643 App Store ratings · 337 written reviews indexed
- Age rating: 4+
- Requires: iOS 13.6 · 164 MB
- Languages: American English
- Released: 2021-04-02
- Data updated: 2026-09-04
- Monetization: paid
- User reviews in markdown: https://appshunter.io/ios/app/good-sudoku-plus/id1551669399/reviews.md

## What is Good Sudoku+?

You’ve never played Sudoku like this.

Good Sudoku turns your iOS device into an AI powered Sudoku genius whose only mission is to help you learn and love this classic game.

Whether you’ve never tried Sudoku, or you play every day, Good Sudoku’s elegant layout, intelligent hint system, and busywork reducing tweaks will help you play better and have more fun.

- Over 70,000 of the highest quality puzzles you’ll see anywhere
- Optional tools to reduce busywork
- AI powered hint support to continuously boost your skills
- 3 standard modes: Good, Arcade, and Eternal
- 3 Daily puzzle modes that get harder throughout the week + global leaderboards
- 6 levels of difficulty
- Import your own puzzles from elsewhere in Custom mode (and share them with friends!)

---

We put everything we could into making the best digital Sudoku game ever released:

- We wrote a puzzle generator from scratch to create over 70,000 of the highest quality puzzles you’ll see anywhere. We spent weeks figuring out how to generate intricate and complex puzzles you won’t find in other Sudoku apps. Our hardest puzzles require wild techniques like “XYZ Wings”, “Hidden Quadrouples”, “Jellyfish”, and “Swordfish”.

- Most people don’t know this but Sudoku puzzles are actually generated by programatic Sudoku solvers. The fastest way to know how hard your puzzle is, or if it’s valid, is to write a solver that knows all the strategies that can try it. With Good Sudoku, we run our solver as you are playing, so if you get stuck, it can detect what you know by looking at your answers and your notes, and then help you find the next technique you need to solve the puzzle.

- Most Sudoku games classify difficulty into vague Easy, Medium, and Hard difficulties — But what do these difficulties mean? Typically they refer to the kinds of solving techniques that are required to solve a given puzzle without resorting to guess-and-check. In Good Sudoku we aren’t vague about it at all. We lay out exactly which techniques are required for each difficulty level. Good Sudoku allows you to practice them individually outside of puzzles, and keeps track of which ones you’ve learned!

- When we first got interested in Sudoku we noticed that a lot of players spend most of their time looking at the board and counting. On easy puzzles, this counting serves as a way to increase the difficulty by making the puzzle take longer. We know some sudoku players love the counting but we found it a bit tedious and designed some tools to alleviate the busywork. At first these tools might feel a bit like cheating, but once your mind is freed up from counting you’ll have space to see the much deeper more fascinating side of Sudoku: all of the beautiful technique structures. Freed from the burden of busywork Sudoku becomes one of the best search-style games we’ve ever played. More fun than word-searches and solitaire, high-level Sudoku is a real treat — and with Good Sudoku and a little practice, anyone can learn it!

- We noticed when looking at other Sudoku apps although there are often daily puzzle modes, those modes never include global leaderboards. Weird! Good Sudoku remedies this problem!

- We wanted to make the best Sudoku out there, and while we’re proud of our puzzles, we recognize that puzzles come from all places. That’s why we built a quick and easy custom puzzle mode into Good Sudoku, so if you have a paper puzzle that you’re stuck on, or you’re trying some wild variant (Like the Miracle Sudoku!) it’s easy to put it into the game, play it, and share it with your friends. If the puzzle follows standard Sudoku rules, our hint system will even help you get unstuck!

We truly hope Good Sudoku can introduce you to, or deepen your love for this great game.

-Zach and Jack

## Key features

- AI-powered hint system
- Over 70,000 high-quality puzzles
- Tools to reduce busywork
- 3 standard game modes
- 3 daily puzzle modes with leaderboards
- 6 difficulty levels
- Import and share custom puzzles

## What do users think of Good Sudoku+?

Overall sentiment: positive

**Pros**

- 🚀 Excellent teaching and learning features
- 👍 Intuitive and customizable interface
- 🎨 Gorgeous visual design and themes
- 🧠 Helps improve sudoku skills
- 📚 Vast number of puzzles at various difficulties

**Cons**

- 🐛 Frequent crashes and bugs
- 🔍 Confusing or unintuitive UI elements
- 💤 Loses progress when switching apps
- 🤔 Hints and techniques not always clear
- 🔢 Accidental button presses (hint, undo)

**Commonly reported bugs**

- Crashes when opening/closing app
- Inconsistent behavior of note-taking tools
- Leaderboard scores not updating properly
- Inability to rotate on certain iPad models
- Disappearing UI elements (back button)

**Most requested features**

- Automatic iCloud/cloud sync between devices
- More color theme options
- Ability to disable auto-fill/auto-note features
- Clearer explanations for advanced techniques
- Confirmation prompts for actions like hints

## Recent user reviews (10 of 337)

All indexed reviews: https://appshunter.io/ios/app/good-sudoku-plus/id1551669399/reviews.md

### 1/5 — Crashes all the time

*2026-08-23, version 1.0.23*

Game crashes all the time, if you close out, complete a puzzle

### 4/5 — Love it, but it crashes a lot

*2026-08-23, version 1.0.23*

It’s testament to how much I enjoy this app that I’m still considering paying for it when my Arcade trial runs out even though it crashes all the time. I can only safely play a single game at a time before reloading the app, starting it can take a number of tries, and it won’t tolerate switching between apps or even pulling a phone menu into focus, like to skip back in a podcast if I didn’t quite catch something. True to its name, it’s good enough that other phone sudoku disappoints. I just wish it loved me enough to be reliable.

### 5/5 — Love it

*2026-08-17, version 1.0.23*

Has improved my sudoku skills, really fun to use.

### 1/5 — Color schemes not ADA complaint

*2026-07-30, version 1.0.23*

The color choices in places are very low contrast light blue text on light green background (might have been reverse).  Could not figure how to progress in note taking tutorial.  Need an option to turn off the various colors put into cell background or explain them.  Very frustrating to play.

### 3/5 — Recent Issue

*2026-07-28, version 1.0.23*

I used to be a daily player until about a week ago. The app no longer loads past the loading screen, and remains black. Really missing the daily puzzles.

### 4/5 — Please move hint button

*2026-07-18, version 1.0.23*

Great Sudoku app, but please move the Hint button.  I’ve accidentally hit it numerous times when trying to tap the red slash button instead.  It’s disappointing when trying to complete the puzzles without using Hint until I absolutely have to resort to using it.

### 1/5 — Game crashes

*2026-06-28*

Game crashes after each game

### 1/5 — Gives away the answers

*2026-06-27, version 1.0.23*

Removes the thought from the puzzle. Click on a box and it tells you what numbers are available and removes all thought from the game and over simplifies the puzzles.

### 4/5 — Problem writing numbers

*2026-06-23, version 1.0.23*

I am trying this app & started playing daily and could not get number
 to go into the cell from the bloc of numbers

### 5/5 — Guest sudoku app

*2026-06-17, version 1.0.23*

It’s great, get it.

However, the HINT button is too close to the others, which makes it easy to occasionally misclick and use a hint when you don’t mean to.

## Frequently asked questions about Good Sudoku+

### What is Good Sudoku+?

Good Sudoku+ is a mobile application that provides an AI-powered Sudoku experience. It aims to help users learn and enjoy the classic puzzle game through intelligent hints, a large collection of high-quality puzzles, and tools designed to streamline gameplay.

### What are the key features of Good Sudoku+?

Key features include an AI-powered hint system that guides players, over 70,000 meticulously generated puzzles, and tools to reduce repetitive tasks. It also offers multiple game modes, six difficulty levels, daily challenges with leaderboards, and the ability to import and share custom puzzles.

### How much does Good Sudoku+ cost?

Based on the provided information, Good Sudoku+ is a paid application. There are no mentions of in-app purchases or advertisements, indicating a one-time purchase model.

### What kind of puzzles can I expect in Good Sudoku+?

The app features over 70,000 high-quality Sudoku puzzles, with a focus on intricate and complex designs. It generates puzzles that require advanced techniques like 'XYZ Wings', 'Hidden Quadruples', 'Jellyfish', and 'Swordfish', catering to players looking for a challenge.

### How does the AI hint system work?

The AI-powered hint system runs a solver in the background as you play. It analyzes your current progress and notes to identify the next technique you need to use, helping you learn and improve your Sudoku-solving skills without resorting to guesswork.

## Version history (last 5 releases)

### 1.0.23 — 2021-10-04

Added support for the new iPad Mini.

### 1.0.22 — 2021-07-13

This update has various small bugfixes to the tutorials, sharing puzzles, and the numpad.

### 1.0.21 — 2021-07-03

Our fix for daily streaks went awry for some players — sorry about that!
To fix it we’re restoring everyones best streaks for all modes. Enjoy!

We’re continuing to work on streaks and hope in the coming months to have a more fun and forgiving daily system in all our games!

### 1.0.19 — 2021-05-27

Thanks for sticking with Good Sudoku!
This version has some updates to our daily system, and a few other bugfixes.

### 1.0.18 — 2021-04-02

No release notes.

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## More apps by Zach Gage

- [Pocket Run Pool](https://appshunter.io/ios/app/pocket-run-pool/id949982914)
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- [Typeshift](https://appshunter.io/ios/app/typeshift/id1084762137)
- [Really Bad Chess](https://appshunter.io/ios/app/really-bad-chess/id1109751921)
- [SpellTower Français](https://appshunter.io/ios/app/spelltower-francais/id1160360982)
- [SpellTower Nederlands](https://appshunter.io/ios/app/spelltower-nederlands/id1160360990)

All apps by Zach Gage: https://appshunter.io/developer/294263418

## Related topics

[good sudoku by zach gage](https://appshunter.io/ios/topics/good-sudoku-by-zach-gage) · [sudoku apple arcade](https://appshunter.io/ios/topics/sudoku-apple-arcade) · [good sudoku](https://appshunter.io/ios/topics/good-sudoku)

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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 2026-09-04.*