# Sudoku XL: 16x16 Puzzles — Big grids, Killer & printable

> Big grids, Killer & printable (iPhone/iPad app by Adir Davidov.)

- Source: https://appshunter.io/ios/app/sudoku-xl-16x16-puzzles/id6802378554 (this page in markdown: same URL + `.md`)
- Developer: [Adir Davidov](https://appshunter.io/developer/1896664968)
- Category: Games, Puzzle
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 15.5 · 47 MB
- Languages: American English
- Released: 2026-09-06
- Data updated: 2026-10-14

## What is Sudoku XL?

Sudoku the way you actually want it — including the giant 16x16 boards almost no other app offers.

WHAT MAKES IT DIFFERENT

• 16x16 grids. Four times the board, the same pure logic.
• Every puzzle is solvable by logic alone. No guessing, ever. Each one is verified against a technique solver before it ships — if a human can't reason it out, it doesn't go in.
• Print them. Export to PDF in A4 or US Letter, 1, 2 or 4 puzzles per sheet, with an optional answer key at the back.

SIX DIFFICULTIES, HONESTLY LABELLED
Easy, Medium, Hard, Expert, Extreme and Master. The tier is the hardest technique the puzzle genuinely requires — not a guess based on how many numbers are missing.

MORE THAN ONE WAY TO PLAY
• A 158-level journey that ramps from singles to XY-Wing
• A new Daily Challenge every day, with streaks
• Killer Sudoku, with cages and sums
• X-Sudoku, where both diagonals count too
• A solver for the puzzle in your newspaper
• Game Center leaderboards for the daily challenge, points, streaks and 16x16 solves, plus 20 achievements

LEARN THE TECHNIQUES — FREE
Every lesson is free, with worked diagrams: naked and hidden singles, locked candidates, pairs, triples, X-Wing and XY-Wing. Each one teaches exactly what the next difficulty demands.

BUILT FOR REAL PLAYING
• Works completely offline. No account, ever.
• Pencil marks, undo and redo, auto-check you can switch off
• Letters instead of numbers on big grids, so every symbol is one character
• Light and dark themes, seven languages

SUBSCRIPTIONS
Sudoku XL is free to play: every mode, difficulty and board size is open from the start. Optional subscriptions add extras:
• Basic — $3.49/month or $34.99/year: premium themes and 250 coins every week
• Pro — $6.99/month or $69.99/year: premium themes and 500 coins every week, plus no ads anywhere, the Coach, and printable PDF packs

Payment is charged to your Apple Account at confirmation of purchase. Subscriptions renew automatically unless auto-renew is turned off at least 24 hours before the end of the current period. Manage or cancel in your Apple Account settings.

Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Privacy Policy: https://sudokuxl.netlify.app/privacy

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| Pro Yearly | $69.99 | per year |

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| 200 Coins | $0.99 | one-time |
| 900 Coins | $2.99 | one-time |
| 500 Coins | $1.99 | one-time |
| 1,800 Coins | $4.99 | one-time |
| 28,000 Coins | $49.99 | one-time |
| 4,200 Coins | $9.99 | one-time |
| 9,500 Coins | $19.99 | one-time |
| 65,000 Coins | $99.99 | one-time |
| 105,000 Coins | $149.99 | one-time |


## Is Sudoku XL safe?

Not enough ratings yet to assess Sudoku XL.

## Is Sudoku XL legit?

Sudoku XL: 16x16 Puzzles has limited verification signals. The AppsHunter Legitimacy Score for Sudoku XL is 58 out of 100 points across 7 verification signals from App Store and developer data.


## Version history (last 3 releases)

### 1.0.2 — 2026-09-24

• Easy, Medium and Hard are gentler: puzzles start with more numbers filled in, and there are many more of them.
• Game Center: leaderboards for today's daily challenge, total points, longest streak and 16x16 puzzles solved, plus 20 achievements. No account needed, just your Game Center sign-in.
• Spanish and Portuguese, including the store and subscriptions. Trophies and the Coach are now translated in every language.
• The subscription screen now shows the right yearly saving.

### 1.0.1 — 2026-09-15

• Erase has its own place: a red key in the tools row, in the same spot on every board size.
• Bigger number keys in fixed rows, on 9x9 and 16x16 alike.
• A number you place correctly now stays put, so a stray tap can't wipe out your progress.
• Digit First mode has been retired to keep the controls simple.
• The subscription screen now fits properly on iPad.

### 1.0 — 2026-09-06

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 2026-10-14.*