Logic Dots 2 vs Index Sums
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Logic Dots 2
This logic puzzle game combines Sudoku and Battleship mechanics. Place dots on a grid to form shapes and solve increasingly challenging brain-teasers. Enjoy over 700 levels with no time or move limits, and a color-blind friendly design.
- Place dots to form shapes
- Solve logic puzzles
- Over 700 unique levels
- No time or move limits
- Color-blind friendly design
- Unlimited undo feature
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If you love solving ingenious puzzles, you need Logic Dots 2! A uniquely fantastic combination of Sudoku and Battleship, it's easy, addictive and logical to play. Place dots on the grid to make shapes and solve each puzzle. This award-winning puzzle sequel is simple and logical, but increasingly challenging. Version 2.0 of Logic Dots 2 is here! Incredibly, we have unlocked ALL of Logic Dots 2’s original levels and made all 210 levels FREE for EVERYONE to play! We’ve also added 480 NEW themed levels, redesigned and improved menus and tutorials, and your progress in a puzzle is now auto-saved when you leave mid-game! - Note: Players who “Unlocked All Packs” in previous versions of Logic Dots 2 will unlock ALL 240 Difficult Pack levels in this new v2.0 update for FREE! - Note: Players who purchased “Unlimited Hints” in previous versions of Logic Dots 2 will unlock 480 new levels including ALL Difficult Pack levels FREE and ALL Lines & Dots Pack levels FREE in this new v2.0 update! Each brain-twisting Logic Dots 2 puzzle consists of a blank grid surrounded by numbers. Players need to find hidden dot lines and now shapes on the grid, making sure each row and column contains the indicated number of dots. This massively-anticipated sequel builds upon its acclaimed puzzle-board predecessor, the #1 puzzle-board game on the App Store with almost 1 million players in a week - incredible! There are no time limits or move limits, and hints are freely given in some puzzles to make them easier on players. Beware though - as the game progresses, deduction challenges become increasingly devilish. Only true ‘Logic Legends’ will make it to the end of Logic Dots 2! - USE LOGIC TO WIN: Place dots in the grid to create dot lines and shapes to solve each logic puzzle. - BEAUTIFUL PRESENTATION: Gorgeous, colorful levels are now even more of a treat for your eyes. Logic Dots is color-blind friendly as well! - INCREASE YOUR INTELLIGENCE: Logic Dots 2 sharpens logic deduction and improves cognitive skills in players. - NO PRESSURE, TAKE YOUR TIME: There’s no time limit and no move limit. Take as many goes and as much time as you want to complete each puzzle! - RENOWNED FRANCHISE: Logic Dots 2 is made by the lead programmer of the original Logic Dots, Logic Traces and hit puzzle game, Tiny Thief! - UNRIVALLED DEPTH: Over 700 unique and increasingly complex brain-teasers provide many hours of intellectual challenge and fun. Yet more new level packs will also be released in free updates very soon! - COMPLETELY FREE: Play all the way to the end with no in-app purchases required! - LEARN AT YOUR PACE: Seamless tutorials for players of any ability level. - COMPARE AND COMPETE: Your game score, Game Center achievements and leaderboards will show who’s the most logical of your friends. Surely it’s you? - FEEL FREE TO MAKE MISTAKES: Any logic errors can be corrected with unlimited undo’s! - HINTS IF YOU NEED THEM: If you get stuck, tap on the hint button and you’ll be puzzling again in no time! As always, your amazing support and positive feedback is always much appreciated. We are working hard and will release new level packs in free updates very soon. Have fun!
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!
Screenshots
Verdict
The clearest difference is review sentiment: Index Sums at 100% against Logic Dots 2's 51%. Index Sums also leads on rating (5.0 vs 4.5) and in-app purchases (none vs 11). Logic Dots 2's advantage is ratings volume (6.7K vs 3). On price, update cadence, monetization model 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. Logic Dots 2 sells 11 one-off in-app purchases. Index Sums asks for nothing beyond the download.
Index Sums holds the better App Store score, 5.0 against 4.5. That said, the two scores are not equally well evidenced: Logic Dots 2 has 6.7K ratings behind it against 3, so its average is the more settled of the two. Written reviews point the same way: 51% of Logic Dots 2's written reviews are positive against 100% of Index Sums's.
Logic Dots 2 ships an update every 5 weeks, Index Sums every 3 weeks. The most recent releases landed on October 18, 2026 and October 9, 2026 respectively.
| Parameter | Logic Dots 2 | Index Sums |
|---|---|---|
| Price | Free | Free |
| Rating | 4.5 (6.7K ratings) | 5.0 (3 ratings) — better |
| Positive reviews | 50.6% of reviews | 100.0% of reviews — better |
| Number of ratings | 6.7K — better | 3 |
| Update frequency | Every 5 weeks | Every 3 weeks — better |
| Ads | Yes | No — better |
| In-app purchases | Yes | No — better |
| Monetization | Free | Free |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 16.0 — better | 17.6 |
| Further details — not scored | ||
| Size | 129 MB | 25 MB |
| Age rating | 4+ | 4+ |
| Developer | Matias Ini | ZORIX LLC |
Customer experience
Logic Dots 2
Index Sums
Bugs and requests
Logic Dots 2
Reported bugs
3 issues- Freezing or crashing at certain levels
- Hints and unlocked levels disappearing
- Tutorial instructions not matching game mechanics
Requested features
4 requests- Option to hide the shape guide at the top
- More levels and content updates
- Ability to track progress and points earned
- Timer feature with scoring based on time
Index Sums
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Logic Dots 2
- Unlock All Packs$0.99
- 50 Hints$0.99
- 10 Hints$1.99
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- Unlock All Packs$2.99
- Unlock All Difficult Levels$2.99
- Unlock All Lines & Dots Levels$2.99
- 50 Hints$4.99
- Unlock ALL Locked Level Packs!$4.99
- Unlimited Hints$9.99
- 200 Hints$14.99
- Unlimited Hints$29.99
Index Sums
No in-app purchases









