Index Sums vs Loop Logic
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!
Loop Logic
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Loop Logic is a clean logic puzzle game where you draw one continuous loop around the grid using deduction and reasoning. Numbers in each cell show how many sides belong to the loop. Draw lines, mark impossible edges, and uncover the unique solution step by step. The rules are simple, but every puzzle rewards careful thinking. Features: • Classic single-loop logic puzzles • Multiple grid sizes • Difficulty from Easy to Expert • Smooth controls for drawing and marking • Clean design focused on readability • Quick undo and redo • Simple tutorial to learn the rules Relax, focus, and complete the loop.
Screenshots
Verdict
The clearest difference is in-app purchases: Index Sums at none against Loop Logic's 1. Loop Logic's advantage is iOS requirement (13.0 vs 17.6). On price, ads 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. Loop Logic sells 1 one-off in-app purchase. Index Sums asks for nothing beyond the download.
| Parameter | Index Sums | Loop Logic |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (3 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 3 — better | — |
| Update frequency | Every 3 weeks | — |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free | — |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 17.6 | 13.0 — better |
| Further details — not scored | ||
| Size | 25 MB | 34 MB |
| Age rating | 4+ | 4+ |
| Developer | ZORIX LLC | VM Mobile Team |
In-app purchases
Index Sums
No in-app purchases
Loop Logic
- Premium Upgrade$3.99









