Number Baseball Duel - Puzzle
Bulls & Cows Code Breaker
Only for iPhone
Free · In‑App Purchases · Designed for iPhone. Not verified for macOS.
iPhone
Number Baseball Duel is a code-breaking brain game, also known as Bulls and Cows. Crack a hidden number using only Strike and Ball clues. Take on the computer solo, pass one device back and forth with a friend, play online against friends and new opponents, or face a friend next to you on your own devices.
■ How to play
• The answer is 3 to 5 different digits from 1 to 9.
• Right digit, right spot: Strike
• Right digit, wrong spot: Ball
• No matching digits: Out
• Get every digit in the right spot: Home run!
■ Four modes
• Solo: Crack the number the computer hid in as few pitches as you can.
• Pass & Play: Take turns on one device to crack each other's number. 1P bats first (top of the inning) and 2P second (bottom). Even if 1P hits a home run, 2P still gets the bottom of the inning. If both do, it's a tie.
• Online Match: Invite a friend through Game Center or get matched with a new opponent, then take turns at bat. It's turn-based, so the match goes on even when you close the app, and you're notified when it's your turn. The rules are the same as Pass & Play, and each turn must be played within 72 hours.
• Local Match: Two devices in the same place connect directly over Wi-Fi. One player hosts a room and shows a room number, the other picks the same number from the list of nearby rooms. No sign-in needed, and the devices don't have to be on the same network. Just turn on Wi-Fi on both.
■ Fair online play
Your secret number is never sent to your opponent during the match. When it ends, both numbers are revealed and every call is checked automatically.
■ Highlights
• Choose 3, 4 or 5 digits to set the difficulty
• My Records: fewest and average pitches for each digit count, plus Pass & Play, Online Match and Local Match results
• Online Wins leaderboard on Game Center
• A ballpark scoreboard look, 8-bit sound effects and music, haptics
• Light and dark themes
• No sign-up. Solo, Pass & Play and Local Match work without the internet (Online Match needs Game Center)
• Available in English, Korean, Japanese and Traditional Chinese
■ Remove ads
A one-time purchase removes ads for good. On another device, use Restore purchases in Settings.
Contact: ssn.dev.app.studio@gmail.com
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
● We've improved the availability of small bugs and apps.
The developer, Sangcheol Kim, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Used to Track You
The following data may be used to track you across apps and websites owned by other companies:
- Identifiers
Data Linked to You
The following data may be collected and linked to your identity:
- Location
- Identifiers
- Usage Data
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Diagnostics
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Sangcheol Kim
- Size
- 15.2 MB
- Category
- Puzzle
- Compatibility
Requires iOS 15.0 or later.
- iPhone
Requires iOS 15.0 or later. - iPod touch
Requires iOS 15.0 or later. - Mac
Requires macOS 12.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
English and 3 more
- English, Japanese, Korean, Traditional Chinese
- Age Rating
4+
- 4+
- Infrequent
Contests
Contains
Advertising
- In-App Purchases
Yes
- Remove Ads $1.99
- Copyright
- © 2026 SSN DEV Studio
