# Solid Sudoku: Daily Puzzle — Classic. Calm. Offline. No ads

> Classic 9x9 Sudoku logic puzzle with daily challenges and offline play. (iPhone/iPad app by DoorGames, LLC.)

- Source: https://appshunter.io/ios/app/solid-sudoku-daily-puzzle/id6787784226 (this page in markdown: same URL + `.md`)
- Developer: [DoorGames, LLC](https://appshunter.io/developer/1857750587)
- Category: Games, Board, Puzzle
- Price: Free with in-app purchases
- Rating: 5.00/5 from 2 App Store ratings
- Age rating: 4+
- Requires: iOS 15.0 · 41 MB
- Languages: American English, Dutch, French (France), German (Germany), Italian, Polish, European Portuguese, European Spanish
- Released: 2026-09-20
- Data updated: 2026-10-09
- Monetization: free with in-app purchases

## What is Solid Sudoku?

A sudoku, not a platform.

Solid Sudoku is a classic 9×9 sudoku with a daily challenge — a calm, paper-styled logic puzzle, fully playable offline. Open the app, pick a difficulty, play.

Try everything free for 7 days. One small unlock keeps the whole game. No ads, ever. Nothing else to buy.

A REAL LOGIC PUZZLE

Every puzzle is generated on your device and always has exactly one solution — solvable by deduction, never by guessing. Four difficulty levels run from a gentle Easy to a properly stubborn Expert.

DAILY CHALLENGE

One puzzle a day, identical for every player in the world. Solve today's grid and see how your time stacks up — an anonymous percentile against everyone else who played. No account. No usernames. Just the number.

THE TOOLS YOU'D ACTUALLY USE

• Notes mode for pencil marks — cleared automatically when you fill the cell
• 3 hints per game. A hint adds 30 seconds to your adjusted time, so a solved grid still means something
• Full undo and redo — the move history even walks back hints and mistakes honestly
• Smart highlighting for the selected row, column, box, and matching numbers
• The number pad counts down how many of each digit are left

DESIGNED LIKE PAPER

The whole aesthetic is called Clean Paper: a warm white page, clues that look printed, your entries in soft blue ink. A fresh puzzle page every game, with a touch of retro pixel charm at launch.

NO INTERNET REQUIRED

Fully playable offline. On a plane. In a basement. Puzzles are generated on your device — no WiFi, no cellular, no waiting for a server. Even today's Daily Challenge works offline; only the percentile needs a connection. Your game saves itself and resumes exactly where you left off.

ONE HONEST UNLOCK

The whole game is free for 7 days — every difficulty, every tool, nothing held back. If it earns a spot on your home screen, one unlock keeps it: a small yearly subscription or a one-time lifetime purchase. No ads, ever. Nothing else to buy. No account, no sign-in — purchases use anonymous store IDs, there's no ad tracking, and your data is never sold.

A LITTLE STOIC CALM

Stoic quotes from Marcus Aurelius, Epictetus, and Seneca rotate through the app. A small moment of philosophy before the logic starts.

SUDOKU FEATURES

• Classic 9×9 sudoku with four difficulties: Easy, Medium, Hard, Expert
• Daily Challenge — the same seeded puzzle for everyone, every day
• Unique-solution puzzles, generated instantly on device
• Pause-aware timer — pausing never costs you time
• Three mistakes and the round is over — gentle stakes, honest wins
• Auto-save and resume across launches
• Full hardware keyboard support on iPad — arrows, digits, shortcuts

The whole game, right here. Pick a difficulty. Fill the grid. That's it.

Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Privacy Policy: https://sudoku.doorgames.io/privacy/

## Key features

- Classic 9x9 Sudoku
- Daily Challenge
- Offline Play
- Four Difficulty Levels
- Notes Mode
- Hints
- Undo/Redo

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| Full Version (Annual) | $2.99 | per year |

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Full Version (Lifetime) | $9.99 | one-time |


## Is Solid Sudoku safe?

Not enough ratings yet to assess Solid Sudoku.

## Is Solid Sudoku legit?

Solid Sudoku: Daily Puzzle has limited verification signals. The AppsHunter Legitimacy Score for Solid Sudoku is 58 out of 100 points across 7 verification signals from App Store and developer data.


## Frequently asked questions about Solid Sudoku

### Does Solid Sudoku have ads?

No, Solid Sudoku is ad-free. The developers explicitly state 'No ads, ever.' This is consistent with its monetization model which relies on a single unlock purchase.

### How much does Solid Sudoku cost?

Solid Sudoku offers a 7-day free trial of the full game. After the trial, you can choose a one-time lifetime purchase or a small annual subscription for $2.99/P1Y.

### Can I play Solid Sudoku offline?

Yes, Solid Sudoku is fully playable offline. Puzzles are generated on your device, so you can play anywhere without an internet connection.

### What are the difficulty levels in Solid Sudoku?

Solid Sudoku offers four difficulty levels: Easy, Medium, Hard, and Expert. These are designed to cater to both beginners and experienced players.

### How does the Daily Challenge work in Solid Sudoku?

The Daily Challenge provides the same puzzle to every player worldwide each day. You can see how your solve time compares anonymously against others.

### What tools are available in Solid Sudoku?

Solid Sudoku includes a notes mode for pencil marks, 3 hints per game, full undo/redo functionality, smart highlighting, and a countdown number pad.

### What is the age rating for Solid Sudoku?

Solid Sudoku has an age rating of 4+. This indicates it is suitable for young children and general audiences.

### How often is Solid Sudoku updated?

The latest version of Solid Sudoku is 1.2.0, and it was last updated on September 28, 2026. This suggests a relatively consistent update schedule.

## Version history (last 3 releases)

### 1.2.0 — 2026-09-28

A bigger board. The line under the number tray is gone and its space goes to the board, and on iPad in Split View the tools now stand beside the board instead of below it.

The home-screen widget now speaks all eight languages, and on smaller iPhones the title no longer gets cut short.

• A bigger board on most screens
• Tools beside the board in iPad Split View
• The widget in all eight languages
• Smaller fixes and polish throughout

Still no ads, no ad tracking, and no account.

### 1.1.0 — 2026-09-24

Now playable in landscape. Turn your iPhone on its side and the board sits beside the number tray — on a smaller iPhone the cells come out bigger than they ever were upright. iPad gets the same layout.

Solid Sudoku also speaks five more languages: German, Italian, Portuguese, Dutch and Polish — eight in all.

• Landscape on iPhone and iPad
• Five new languages
• Tool labels hold one line instead of breaking mid-word
• Smaller fixes and polish throughout

Still no ads, no ad tracking, and no account.

### 1.0 — 2026-09-21

No release notes.

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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 2026-10-09.*