# Sudoku ′ No ads vs mathdown

The clearest difference is update cadence: Sudoku ′ No ads at every 2 months against mathdown's every 38 months. Sudoku ′ No ads also leads on chart position (#32 vs unranked) and iOS requirement (12.4 vs 15.6). mathdown's advantage is price ($0.99 vs $1.99). On ads, in-app purchases and device support there is nothing between them.

Sudoku ′ No ads costs $1.99 and mathdown $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Sudoku ′ No ads ships an update every 2 months, mathdown every 38 months. The most recent releases landed on November 4, 2026 and October 26, 2026 respectively.

## The numbers

| Metric | Sudoku ′ No ads | mathdown |
| --- | --- | --- |
| Price | $1.99 | **$0.99** |
| Rating | **[4.8 (29K ratings)](https://appshunter.io/ios/app/sudoku-no-ads/id329981776/reviews)** | — |
| Number of ratings | **29K** | — |
| Positive reviews | 84.7% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 38 months |
| Monetization | Free | — |
| Best chart rank | **#32** | — |
| Size | 3 MB | 1 MB |
| Requires iOS | **12.4** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Mind The Frog, Inc.](https://appshunter.io/developer/329981779) | [JOhn Lyons](https://appshunter.io/developer/571586394) |

## What reviewers say

### Sudoku ′ No ads

[App page](https://appshunter.io/ios/app/sudoku-no-ads/id329981776)

**Currently charting:** #32 Top Paid · Board, #62 Top Paid · Puzzle (US App Store)

Engage in a classic number puzzle experience with no advertisements. This app offers unlimited grids, six difficulty levels, and daily challenges, all within a user-friendly and distraction-free interface. Enjoy a smooth and intuitive gameplay on all your devices.

**Highlights:** No ads, Unlimited grids, 6 difficulty levels, Daily challenges, Undo/Redo functionality, Automatic and manual notes, Conflict and error highlighting

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

**In-app purchases:** none

**What reviewers like**

- 👍 Intuitive and easy to use
- 🚀 Smooth and responsive
- 🔒 No data collection or ads
- 💡 Variety of difficulty levels
- 🧠 Keeps the mind active

**What reviewers complain about**

- 🐛 Inconsistent note-taking behavior
- 🔍 Difficulty level mismatch
- 🎨 Lackluster visual design

**Reported bugs**

- Impossible puzzles at higher difficulties
- Occasional grid deselection issues

**Requested features**

- Option to lock note mode
- Ability to input custom puzzles
- Pause button for timed games
- Improved color contrast and themes
- Hints or tips for solving puzzles


### mathdown

[App page](https://appshunter.io/ios/app/mathdown/id1479320609)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Sudoku ′ No ads free?

Sudoku ′ No ads costs $1.99, with no in-app purchases.

### Is mathdown free?

mathdown costs $0.99, with no in-app purchases.

### Do Sudoku ′ No ads or mathdown have ads?

Neither Sudoku ′ No ads nor mathdown shows ads.

### Which is updated more often, Sudoku ′ No ads or mathdown?

Sudoku ′ No ads ships an update every 2 months, and mathdown every 38 months. Most recently, Sudoku ′ No ads was updated on November 4, 2026 and mathdown on October 26, 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.*