BlockSum: Number Puzzle Game
Math Puzzle & Brain Trainer
Free · In‑App Purchases
Add numbers fast. Think faster.
BlockSum is an addictive number puzzle game that challenges your brain with quick math, strategy, and fast decisions. Combine adjacent numbers to hit the target sum, clear the board, and stop the grid from filling up.
Perfect for fans of math games, brain training apps, logic puzzles, math challenges.
Why You’ll Love BlockSum
• Fast-Paced Number Puzzle Gameplay
Combine numbers under pressure in a unique twist on classic math puzzles.
• Brain Training That Feels Like a Game
Sharpen your mental math, logic, and focus with every move.
• Simple to Learn, Hard to Master
Easy controls, deep strategy, endless replay.
• Quick Sessions, Endless Challenge
Perfect for short bursts or long high-score runs.
How to Play
• A target number appears at the top
• Tap or drag across adjacent numbers to add them
• Match the exact sum to clear blocks and score
• A new row drops when the timer runs out
• Keep the grid from filling up or it’s game over
Think ahead. Move fast. Stay in control.
Game Features
• Endless Arcade Mode – Push your high score further every run
• Multiple Difficulty Levels – Easy, Medium, Hard for every skill level
• Strategic Grid Gameplay – Every move matters
• Timer-Based Challenge – Speed meets strategy
• Clean, Minimal Design – No distractions, just puzzles
• Dark Mode Support – Play comfortably anytime
• Smooth Controls – Tap or drag to create number chains
Difficulty Modes
Easy – Relaxed gameplay, perfect for beginners
Medium – Balanced challenge for puzzle lovers
Hard – Fast, intense, and highly competitive
Pro Tips
• Plan your number path before you move
• Stay within adjacent cells only
• Use Clear to fix mistakes
• Use Drop strategically to control the board
• Think ahead to avoid grid overflow
Upgrade to BlockSum Pro:
• No ads
• One-time purchase
• Pure uninterrupted gameplay
If you enjoy number puzzle games, math challenges, brain training apps, or logic puzzles, BlockSum is your next obsession.
Download now and test your brain with the ultimate number puzzle challenge!
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
- Changed cell shape, added space between game buttons below
The developer, Ercan Sozeri, 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:
- Purchases
- Identifiers
- Usage Data
- Diagnostics
Data Linked to You
The following data may be collected and linked to your identity:
- Purchases
- Identifiers
- Usage Data
- Diagnostics
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Ercan Sozeri
- Size
- 42.7 MB
- Category
- Puzzle
- Compatibility
Requires iOS 15.0 or later.
- iPhone
Requires iOS 15.0 or later. - iPad
Requires iPadOS 15.0 or later. - iPod touch
Requires iOS 15.0 or later.
- iPhone
- Languages
English and 12 more
- English, Danish, Dutch, French, German, Italian, Japanese, Norwegian Bokmål, Portuguese, Simplified Chinese, Spanish, Swedish, Turkish
- Age Rating
4+
- 4+
- Contains
Advertising
- In-App Purchases
Yes
- Pro Edition (No Ads) $3.99
- Copyright
- © 2026 Ercan Sozeri