King Sudoku vs Stackly
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
King Sudoku
Enjoy Sudoku puzzles without intrusive advertisements. This app offers a distraction-free environment with multiple difficulty levels and daily challenges. Save your progress and play offline, anytime, anywhere.
- Zero interrupting ads
- Multiple difficulty levels
- Clean, minimal interface
- Auto-save progress
- Daily Sudoku challenges
- Offline play
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Finally, Sudoku without the constant ad interruptions. King Sudoku lets you focus on what matters - solving puzzles. No forced ads. No pop-up ads breaking your concentration mid-puzzle. No waiting 30 seconds to continue. Ads only ever appear when YOU choose to watch one for a reward - and Premium removes them entirely. WHY KING SUDOKU? Most puzzle apps bombard you with ads every few minutes. We believe your focus shouldn't be for sale. Enjoy a clean, distraction-free experience that lets you get into the flow and stay there. FEATURES: • No forced ads - optional rewarded videos only, never mid-puzzle • Go 100% ad-free with King Sudoku Premium • Multiple difficulty levels from beginner to expert • Daily Sudoku challenges to keep your streak alive • Beautiful themes to match your mood • Auto-save your progress • Works offline - play anywhere, no connection needed • Clean, minimal interface designed for focus Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Stackly
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Stackly is a Tetris-style puzzle where you drag pieces onto the board. Clear both rows and columns, beat the clock, and climb the levels. One more run.
Screenshots
Verdict
The clearest difference is in-app purchases: Stackly at none against King Sudoku's 10. Stackly also leads on update cadence (every 4 days vs every 8 days). King Sudoku's advantage is iOS requirement (15.1 vs 18.6). On price, ads and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. King Sudoku sells 10 in-app purchases, starting at $0.99 per year. Stackly asks for nothing beyond the download.
King Sudoku ships an update every 8 days, Stackly every 4 days. Both last shipped on October 31, 2026.
| Parameter | King Sudoku | Stackly |
|---|---|---|
| Price | Free | Free |
| Rating | 4.9 (12 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 12 — better | — |
| Update frequency | Every 8 days | Every 4 days — better |
| Ads | Yes | Yes |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15.1 — better | 18.6 |
| Further details — not scored | ||
| Size | 52 MB | 12 MB |
| Age rating | 4+ | 4+ |
| Developer | Enis shelbaya | SEBASTIEN RUEL |
In-app purchases
King Sudoku
- sub_supporter_yearly$0.991 Year
- King Sudoku Premium7 Days trial$1.991 Month
- sub_patron_yearly$2.991 Year
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- King Sudoku Premium$2.991 Month
- sub_champion_yearly$4.991 Year
- King Sudoku Premium7 Days trial$14.991 Year
- sub_benefactor_yearly$24.991 Year
- King Sudoku Premium$24.991 Year
- sub_icon_yearly$49.991 Year
- sub_legend_yearly$99.991 Year
Stackly
No in-app purchases
