Index Sums vs Code Burst
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Index Sums
Engage your mind with a Japanese number logic puzzle. Fill grids based on row and column sums, using pure logic to reveal hidden patterns. Offers multiple difficulty levels and daily challenges for continuous mental stimulation.
- Row and column sum logic puzzles
- Multiple difficulty levels
- Daily challenges
- Progress tracking and statistics
- Offline play
- Customizable themes
- Haptic feedback
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Challenge your mind with Index Sums (Kakurasu), an elegant Japanese number logic puzzle that combines the best of Sudoku and Nonograms! HOW TO PLAY: • Fill in the grid based on row and column sums • Use logic to determine which cells should be filled • Complete the puzzle to reveal a hidden pattern • No guessing required - pure logic and deduction! KEY FEATURES: • Multiple difficulty levels (Easy, Medium, Hard) • Daily challenges to keep your mind sharp • Track your progress and statistics • Beautiful, minimalist design • Dark mode support • Offline play capability • Customizable themes and colors • Haptic feedback for better interaction BENEFITS: • Mental Agility: Challenge your logical thinking and problem-solving skills • Focus & Concentration: Practice maintaining focus through engaging puzzles • Pattern Recognition: Develop your ability to spot patterns and make quick decisions • Stress Relief: A relaxing way to unwind while keeping your mind active • Daily Challenge: Build a fun routine with daily puzzles • Progress Tracking: Monitor your improvement over time GAME MODES: • Classic Mode: Solve at your own pace • Daily Puzzles: New challenges every day • Practice Mode: Learn the basics FEATURES: • Intuitive touch controls • Haptic feedback • Progress tracking and statistics • Level progression system • Share your achievements • No ads or interruptions • Regular updates with new features Whether you're a puzzle enthusiast or looking to improve your logical thinking, Index Sums offers the perfect blend of challenge and satisfaction. Download now and join thousands of players in this addictive number logic puzzle!
Code Burst
Engage your logic and deduction skills in this addictive puzzle game. Guess a secret code and use color-coded feedback to crack it. Offers multiple difficulty levels and progress tracking.
- Code-breaking logic puzzles
- Multiple difficulty modes
- Custom game challenges
- Game Center integration
- Detailed statistics and progress tracking
- Share game results
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CODE BURST - The Ultimate Code-Breaking Challenge! Put your detective skills to the test in this addictive puzzle game that will challenge your logic and deduction abilities! HOW TO PLAY A secret 4-digit code is generated with unique numbers Make your guess and receive instant feedback Green highlights show correct digits in correct positions Yellow highlights show correct digits in wrong positions Use logic and process of elimination to crack the code! GAME FEATURES Easy Mode - Full visual feedback with position hints Normal Mode - Numbers only, no visual hints Hard Mode - 5 digits with duplicate numbers allowed Custom Mode - Create your own challenge GAMECENTER INTEGRATION Compete on global leaderboards Unlock achievements Track your best times and attempts Challenge friends and see who's the master code breaker TRACK YOUR PROGRESS Detailed game history and statistics Share your victories with custom formatted results Review past games to improve your strategy See your improvement over time PERFECT FOR: Puzzle and logic game enthusiasts Fans of classic code-breaking games Anyone who loves brain teasers and mental challenges Players looking to improve their deductive reasoning Whether you're a seasoned puzzle solver or new to logic games, Code Burst offers the perfect balance of challenge and accessibility. Each game is a unique puzzle waiting to be solved with your brilliant deduction skills! Download now and discover why thousands of players are addicted to cracking codes! Can you become the ultimate code master?
Screenshots
Verdict
The clearest difference is update cadence: Code Burst at every 9 days against Index Sums's every 3 weeks. Index Sums's advantage is ratings volume (3 vs 1). On price, rating, ads and in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.
On the App Store both sit at effectively the same score — 5.0 for Index Sums against 5.0 for Code Burst. Both are backed by a comparable volume of ratings — 3 and 1 respectively.
Index Sums ships an update every 3 weeks, Code Burst every 9 days. The most recent releases landed on October 9, 2026 and October 6, 2026 respectively.
| Parameter | Index Sums | Code Burst |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (3 ratings) | 5.0 (1 ratings) |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 3 — better | 1 |
| Update frequency | Every 3 weeks | Every 9 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad — better | iPhone |
| Requires iOS | 17.6 | 17.0 — better |
| Further details — not scored | ||
| Size | 25 MB | 7 MB |
| Age rating | 4+ | 4+ |
| Developer | ZORIX LLC | MFX Studios |
Customer experience
Index Sums
Code Burst
In-app purchases
Index Sums
No in-app purchases
Code Burst
No in-app purchases









