Bullpen vs Null Pattern
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Bullpen
This logic puzzle game combines elements of Sudoku and Minesweeper. Place bulls according to specific rules, with increasing difficulty options. Enjoy daily challenges and an ad-free experience.
- Place one bull per pen, row, and column
- Bulls cannot touch each other (diagonally included)
- Hard mode: two bulls per pen, row, and column
- Ad-free and privacy-focused gameplay
- Daily new puzzles
- Pro Mode with 5,000+ levels and Free Play
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Welcome to Bullpen – a clean, logic-based puzzle game where every bull must be placed just right. It's like Sudoku meets Minesweeper. Simple Rules, Deep Strategy – Place one bull per pen, row, and column – Bulls cannot touch each other, even diagonally – For extra difficulty, hard mode requires two bulls per pen, row, and column Ad-Free & Privacy-Focused – Enjoy uninterrupted gameplay with no ads and complete data privacy – Also doesn't require internet to play Daily Puzzles – New puzzles every day to keep your mind engaged – See if you can get the fastest time Pro Mode – Access all 5,000 levels + unlock Free Play mode – Advanced statistics and sync progress across devices with iCloud Why Bullpen? – Minimalist design for a focused, enjoyable experience – Easy to learn yet challenging enough to satisfy puzzle enthusiasts – Ideal for both quick sessions and longer play times Ready to test your logic? Download Bullpen now and start solving puzzles your way!
Null Pattern
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Null Pattern is a minimalist logic puzzle game about transforming grids, reading patterns, and finding the exact sequence of moves that clears the board. Each level gives you an initial grid and a target pattern. Tap cells to trigger changes, study the result, and work your way toward the solution. Early puzzles teach the rules gently, but the challenge ramps up fast. Later levels demand careful thinking, efficient moves, and a willingness to stare at the grid until the hidden logic finally clicks. Features: - Elegant grid-based logic puzzles - Increasingly difficult levels that reward planning - Clean visual design focused on the puzzle - Par move goals for players who want an extra challenge - Great for quick sessions or deep puzzle-solving runs Null Pattern is easy to start, but it is not afraid to get tough. If you enjoy compact puzzle games with real bite, this one is built for you.
Screenshots
Verdict
The clearest difference is in-app purchases: Null Pattern at none against Bullpen's 1. Null Pattern also leads on update cadence (daily vs weekly) and iOS requirement (14.0 vs 17.2). Bullpen's advantage is ads (none vs shown). On price 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. Bullpen sells 1 one-off in-app purchase. Null Pattern asks for nothing beyond the download.
Bullpen ships an update weekly, Null Pattern daily. The most recent releases landed on October 2, 2026 and September 27, 2026 respectively.
| Parameter | Bullpen | Null Pattern |
|---|---|---|
| Price | Free | Free |
| Rating | 4.9 (1.3K ratings) — better | — |
| Positive reviews | 94.7% of reviews | — |
| Number of ratings | 1.3K — better | — |
| Update frequency | Weekly | Daily — better |
| Ads | No — better | Yes |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 17.2 | 14.0 — better |
| Further details — not scored | ||
| Size | 38 MB | 100 MB |
| Age rating | 4+ | 4+ |
| Developer | David Williames | Peralysis Games |
Bugs and requests
Bullpen
Reported bugs
2 issues- Annoying bull sound effect
- Difficulty progression issues (needing to replay lower levels)
Requested features
3 requests- More levels for free version
- Auto-placement tool for faster solving
- Additional customization options (colors, markings)
Null Pattern
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Bullpen
- Pro Version$4.99
Null Pattern
No in-app purchases









