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Review · Gaming & entertainment

Bullpen: Logic Puzzle Game review

A grid logic puzzle by David Williames where you place one bull per pen, row and column without any bulls touching, described as Sudoku meets Minesweeper.

By the DBotMaker research desk · Updated November 11, 2026

Capabilities (40%)
8.4
Ease of setup (30%)
9.0
Value (30%)
8.7

Bullpen is a clean grid logic game in the same family as Star Battle and the Queens puzzle: place one bull in each pen, row and column so that no two bulls touch, even diagonally. A hard mode raises that to two bulls per pen, row and column. The US App Store listing promises uninterrupted gameplay with no ads and complete data privacy, and the game does not need an internet connection. New puzzles arrive every day, and you can compare your fastest time. A one-time Pro Version at $4.99 opens all 5,000 levels, Free Play mode, advanced statistics and iCloud sync. It runs on iPhone, iPad, Apple silicon Macs and Apple Vision Pro in 21 languages. The limits are that the big level library is behind Pro and there is no Android or web version listed. We compared documented features and published prices.

Who it is for

Fans of Queens and Star Battle style puzzles on Apple devices

Price

Free with daily puzzles and no ads; Pro Version costs $4.99 one time on the US App Store.

Pro Version $4.99
Quoted from the vendor pricing page on November 11, 2026.

Key features

  • Place one bull per pen, row and column, with no bulls touching, even diagonally
  • Hard mode with two bulls per pen, row and column
  • New daily puzzles with fastest-time comparison
  • Pro Mode opens all 5,000 levels and Free Play
  • Plays without an internet connection

Strengths and weaknesses

  • Strength: Listing promises uninterrupted gameplay with no ads and complete data privacy
  • Strength: Daily puzzles are free
  • Strength: Available in English and 20 more languages
  • Weakness: All 5,000 levels and Free Play need the $4.99 Pro Version
  • Weakness: Advanced statistics and iCloud sync are Pro features
  • Weakness: No Android or web version listed

Key facts

  • Levels with Pro: 5,000
  • Pro Version: $4.99 on the US App Store
  • Developer: David Williames
  • Languages: English and 20 more

Where it ranks

Bullpen: Logic Puzzle Game is No. 4 in our Best Free Puzzle Games Without Ads verdict.

Alternatives we scored

Visit davidwilliames.com · Questions or corrections: editorial@dbotmaker.io