Sudoku Play
A Sudoku app with 6,000 puzzles, a 5,900-level adventure mode, 1v1 duels with friends and rewards for playing every day. It works offline, and your progress carries over between devices. Our own product, designed, built and published on both stores.
6,000
Unique puzzles
5,900
Adventure levels
590
Worlds
5
Game modes
1v1
Duels with friends
2
Languages
What players get
The game
A 9x9 board that fits any screen
Accurate taps on any phone, with the notch and screen edges never in the way.
Drag to fill
Hold for half a second and slide your finger to drop the same number into several cells.
Two ways to play
Classic (instant feedback, limited lives) and Purist (no checking, no hints).
Hints that teach
They point to the key cell that unlocks the board, with a 1:30 wait between hints.
Unlimited undo and autosave
Undo as many moves as you like. The game saves every 10 seconds, when you pause and when you leave.
Adventure mode
5,900 levels
590 worlds across 6 chapters, with difficulty ramping up step by step.
A Candy Crush-style map
A winding path of levels to tap through, with boss levels along the way.
Hearts and stars
Hearts refill over time or by watching an ad, and the stars you collect open the gates to new worlds.
Progress & rewards
XP, levels and coins
Every game earns XP and coins, with chain multipliers.
Streaks with shields
Playing every day earns bigger and bigger bonuses, and a shield protects your streak.
Daily challenge and quests
One puzzle a day, the same for everyone, plus daily and weekly quests with rewards.
Achievements
A dedicated screen to see what you have unlocked and what is left.
Friends & duels
Friends by code
Each player has a 6-character code to add friends, plus a friends leaderboard with several rankings.
1v1 duels
Both players get the same puzzle and bet coins: fastest time with the fewest mistakes wins.
Fair duels
No hints and no pausing, and the coins at stake are held until there is a winner.
How it pays for itself
Ads that never interrupt a game
A banner on the home screen only, never during play; ads between games; and optional ads to earn hints and coins.
Premium subscription
No ads, +50% coins, 5 hints per game, exclusive themes and unlimited hearts.
In-app purchases
Paid with the player's App Store or Google Play account, like any other purchase on their phone.
Problems we solved
Notes looked wrong on Samsung phones
The problem: On Samsung phones, the small pencil marks inside each cell came out scrambled.
How we solved it: We rebuilt how they are drawn so they always sit in their 3×3 grid.
→ Pixel-perfect on more than half of the Android market.
The app closed on its own on some Androids
The problem: On some Samsung phones, the app crashed when it tried to sync in the background.
How we solved it: It now syncs when the player comes back to the app.
→ No more unexpected crashes.
Phones without Google services
The problem: On Huawei phones and other devices without Google services, the app would not start.
How we solved it: The app checks what the phone supports and adapts.
→ It works on every device.
Playing on more than one device
The problem: Playing on a phone and a tablet made the coin balances clash.
How we solved it: Every move is recorded once and the balance is rebuilt from there.
→ Zero data loss and a complete history.
Coins in duels
The problem: There were ways to duplicate coins by exploiting duels.
How we solved it: Coins at stake are held from the moment a duel is created or accepted until there is a winner.
→ The game economy is protected.
Small stutters mid-game
The problem: Saving and syncing while playing caused tiny freezes.
How we solved it: Nothing heavy happens during a game: saving waits for the moments it does not get in the way.
→ Smooth play all the time and saving you never notice.
What it proves if you want your own app
Live on the App Store and Google Play
Design, development, publishing and upkeep on both stores, end to end.
Works offline
All 6,000 puzzles live on the phone. The whole game plays without signal and syncs when the connection is back.
Progress is never lost
Coins, level and progress stay safe even when you play on more than one device.
Rewards nobody can fake
Coins, XP and purchases cannot be inflated from the phone, and cheaters are quietly set aside.
Notifications and ads that don't annoy
Push notifications on the phone, and ads that never show up in the middle of a game.
Easy on the battery
Before syncing, it checks for WiFi or mobile data, battery level and power saving mode.
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Highlights
A complete product of our own: design, development, publishing and upkeep on the App Store and Google Play
6,000 original puzzles across 6 difficulty levels
5,900 Adventure Mode levels with boss worlds, hearts and stars
Friends by code, leaderboards and 1v1 duels with coin bets
The whole game plays offline, and progress follows you to any device
Protection against cheating on coins, scores and duels
From zero to published on both stores in about 3 weeks
Additional Information
Languages
Spanish + English
Themes
Dark + unlockables
Puzzles
6,000 unique
Modes
5 (Classic, Purist, Daily, Duels, Adventure)
What comes next
Sudoku Play is built to grow into a family of games with one shared player profile: cross-game challenges, global leaderboards, limited-time events and tournaments.