# Sudoku vs Notes+

The clearest difference is rating: Notes+ at 4.7 against Sudoku's 4.1. Notes+ also leads on monetization model (freemium vs subscription) and review sentiment (76% vs 47%). Sudoku's advantage is iOS requirement (15.6 vs 17.0). On price, ratings volume, ads and in-app purchases there is nothing between them.

Both are free to download. Sudoku sells 10 in-app purchases, starting at $2.99 per month and Notes+ sells 35 in-app purchases, starting at $3.99 per month. Whichever you choose, the download price is not the number that matters.

Notes+ holds the better App Store score, 4.7 against 4.1. Both are backed by a comparable volume of ratings — 4.3K and 3.2K respectively. Written reviews point the same way: 47% of Sudoku's written reviews are positive against 76% of Notes+'s.

Sudoku ships an update monthly, Notes+ every 9 days. Both last shipped on October 24, 2026.

## The numbers

| Metric | Sudoku | Notes+ |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.1 (4.3K ratings)](https://appshunter.io/ios/app/sudoku-no-ads/id1533935003/reviews) | **[4.7 (3.2K ratings)](https://appshunter.io/ios/app/notes-plus-notes-for-pencil/id1609361989/reviews)** |
| Number of ratings | **4.3K** | 3.2K |
| Positive reviews | 46.5% of reviews | **76.3% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Monthly | **Every 9 days** |
| Monetization | Subscription | **Freemium** |
| Size | 16 MB | 161 MB |
| Requires iOS | **15.6** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 17+ |
| Developer | [Beijing Free Calculator Technology Co., Ltd.](https://appshunter.io/developer/1457813265) | [SINGFISH PTE. LTD.](https://appshunter.io/developer/1745986454) |

## What reviewers say

### Sudoku

[App page](https://appshunter.io/ios/app/sudoku-no-ads/id1533935003)

Engage in a classic Sudoku experience with multiple difficulty levels suitable for all ages. Enjoy a clean interface, track your game history, and access unlimited solutions with a yearly subscription.

**Highlights:** Multiple difficulty levels, Beautiful and concise interface, Game history tracking, Unlimited Sudoku solutions, Ad-free experience

**Features:** macOS Compatibility, Family Sharing, Vision Pro support

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Advanced features-1 month | $2.99 | per month |
| Advanced features-all year | $12.99 | per year |
| 数独高级会员-月 | $1.99 | one-time |
| 数独高级会员-年 | $9.99 | one-time |
| Sudoku Monthly Membership | $9.99 | one-time |
| Beginner Skill Course | $9.99 | one-time |
| Permanent Purchase | $14.99 | one-time |
| Sudoku Year Member | $29.99 | one-time |
| Sudoku Year Member | $49.99 | one-time |
| All Skill Courses | $59.99 | one-time |

**What reviewers like**

- 🚀 No ads
- 👍 Simple and straightforward
- 👍 Variety of difficulty levels
- 👍 Separate notes and final number inputs
- 👍 Good for practicing and improving skills

**What reviewers complain about**

- 🐛 Repeated puzzle layouts
- 🐛 Bugs and errors in puzzle generation
- 🔒 Requires payment to access basic features (sound, difficulty settings)
- 👎 Large gap in difficulty between easy and medium levels
- 👎 Inability to undo/reset a game in progress

**Reported bugs**

- Puzzles with no unique solution
- Game resets when app is closed
- Candidate numbers disappearing unexpectedly
- Incorrect highlighting of mistakes

**Requested features**

- Ability to select and mark multiple cells
- Option to view statistics and compare scores
- More granular difficulty settings between easy and hard
- Ability to save and resume an in-progress game
- Explanations for advanced solving techniques


### Notes+

[App page](https://appshunter.io/ios/app/notes-plus-notes-for-pencil/id1609361989)

Enhance your digital note-taking with realistic writing tools, diverse templates, and AI-powered features. Import files, organize with versatile tools, and boost productivity with multi-tasking capabilities. Secure your notes and access smart AI assistants for summaries, quizzes, and transcriptions.

**Highlights:** Realistic writing experience, File import and conversion, Versatile note-taking tools, Wide selection of magical pens, AI-powered summarization and quiz generation, Multi-tasking features, Password protection

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (35)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Fonts | $3.99 | per month |
| AI Solver | $7.99 | per month |
| AI Flashcard Generator | $7.99 | per month |
| AI Quiz Generator | $7.99 | per month |
| AI Summary Generator | $7.99 | per month |
| Fonts | $9.99 | per year |
| Unlock four AI features | $12.99 | per month |
| AI Audio to Text Summary | $15.99 | per month |
| AI Video to Text Summary | $15.99 | per month |
| AI One | $24.99 | per month |
| Unlock four AI features | $71.99 | per year |
| AI One | $137.99 | per year |
| 词根词缀背单词 | $2.99 | one-time |
| Deep Blue Small Floral Notebook | $5.99 | one-time |
| Teal Undated Digital Planner | $7.99 | one-time |
| Ultimate Digital Notebook | $7.99 | one-time |
| Everyday Notebook | $7.99 | one-time |
| Recipe Book | $8.99 | one-time |
| 2026-2027 Student Planner (Pastel) | $9.99 | one-time |
| Student Digital Notebook | $9.99 | one-time |
| Undated ADHD Planner | $9.99 | one-time |
| Digital Recipe Book | $9.99 | one-time |
| Undated Student Planner | $9.99 | one-time |
| 2026 Planner (Starts on Sunday) | $9.99 | one-time |
| 2026 Daily Digital Panner | $9.99 | one-time |
| 2026 The Everyday Digital Planner | $9.99 | one-time |
| 2026 Apple-All In One Planner | $9.99 | one-time |
| 2026-2027 Study Planner Pro | $9.99 | one-time |
| Simple Smart Notebook Mocha | $9.99 | one-time |
| The Undated Digital Planner | $9.99 | one-time |
| Undated All-in-One Planner (Pastel) | $11.99 | one-time |
| Mid Year All In One Planner | $11.99 | one-time |
| 2026 - 2027 Minimal Digital Planner | $11.99 | one-time |
| ADHD Task Funnel Purple | $11.99 | one-time |
| Belge kısıtlamasını kaldır | $24.99 | one-time |

**What reviewers like**

- 🚀 Amazing features
- 👍 Intuitive and easy to use
- 🎨 Variety of templates and tools
- 💰 Completely free
- 🔒 Secure and private

**What reviewers complain about**

- 🐛 Occasional crashes and bugs
- 🔋 High battery consumption
- 🖋️ Pen/writing issues for some users
- 📁 Difficulty organizing notes and files
- 🔍 Lacking robust search functionality

**Reported bugs**

- Notes disappearing or not saving properly
- Pen/writing not registering correctly
- Crashes when trying to add new pages
- Imported PDFs losing formatting
- Eraser tool not working as expected

**Requested features**

- Ability to create custom templates
- Improved handwriting recognition
- Customizable pen/brush tools
- Better organization and folder management
- Seamless sync across all devices


## Frequently asked questions

### Is Sudoku free?

Sudoku is free to download, with in-app purchases available.

### Is Notes+ free?

Notes+ is free to download, with in-app purchases available.

### Which has better reviews, Sudoku or Notes+?

Notes+ is rated higher. Sudoku averages 4.1 out of 5 from 4.3K ratings, while Notes+ averages 4.7 from 3.2K ratings.

### Do Sudoku or Notes+ have ads?

Neither Sudoku nor Notes+ shows ads.

### Which is updated more often, Sudoku or Notes+?

Sudoku ships an update monthly, and Notes+ every 9 days. Most recently, Sudoku was updated on October 24, 2026 and Notes+ on October 24, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*