Comparison

Index Sums vs Seven Slate

Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.

Head to head
About

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.

Highlights
  • Row and column sum logic puzzles
  • Multiple difficulty levels
  • Daily challenges
  • Progress tracking and statistics
  • Offline play
  • Customizable themes
  • Haptic feedback
Features
Read full description

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!

About

Seven Slate

A minimalist word game where you tap falling letter tiles to form words and score points. It features an elegant design, multiple game modes, and a comprehensive dictionary. Unlock premium features for an enhanced experience.

Highlights
  • Elegant monochrome design
  • Timed challenges and Zen Mode
  • Tap falling tiles to form words
  • Combo system for score multipliers
  • Comprehensive dictionary with definitions
  • Premium features like Vowel Bank
Features
Read full description

SEVEN SLATE A beautiful, minimalist word game that challenges your vocabulary and quick thinking. Watch as letter tiles cascade from above, tap them to form words, and rack up points in this elegant, monochrome word puzzle. SIMPLE CONCEPT, ADDICTIVE GAMEPLAY Slate Words combines the best elements of word games with fast-paced action. As letter tiles fall from the top of your screen, you must quickly decide which to grab and how to form the highest-scoring words possible. FEATURES • ELEGANT DESIGN: Immerse yourself in a sleek, monochrome aesthetic that's easy on the eyes and beautifully minimal • MULTIPLE GAME MODES: Test your skills in timed challenges or enjoy endless play in the premium Zen Mode • INTUITIVE CONTROLS: Simply tap falling tiles to collect letters, then arrange them into words • COMBO SYSTEM: Form words quickly in succession to build combos and multiply your score • COMPREHENSIVE DICTIONARY: Thousands of words recognized, with definitions just a tap away PREMIUM FEATURES Unlock all premium features with a single purchase: • ZEN MODE: Play endlessly without time pressure or game-over conditions • VOWEL BANK: Keep vowels permanently available for easier word creation • 5 TILES MODE: See more falling tiles at once (at a slower pace) for more strategic options No subscriptions, no ads, just pure word game enjoyment. Perfect for word game enthusiasts, puzzle lovers, or anyone looking for a stylish brain teaser to enjoy during commutes, breaks, or relaxing evenings. Download Slate Words now and put your vocabulary to the test!

Screenshots

Index Sums4 screens
Seven Slate1 screens

Verdict

The call

The clearest difference is rating: Index Sums at 5.0 against Seven Slate's 4.0. Index Sums also leads on in-app purchases (none vs 1) and ratings volume (4 vs 1). Seven Slate's advantage is iOS requirement (15.6 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Seven Slate sells 1 one-off in-app purchase. Index Sums asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Index Sums holds the better App Store score, 5.0 against 4.0. Both are backed by a comparable volume of ratings — 4 and 1 respectively.

Scorecard5 real differences · 5 level
Index Sums versus Seven Slate: the parameters behind the verdict, then further details
ParameterIndex SumsSeven Slate
PriceFreeFree
Rating5.0 (4 ratings) — better4.0 (1 ratings)
Positive reviews100.0% of reviews—
Number of ratings4 — better1
Update frequencyEvery 3 weeks—
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS17.615.6 — better
Further details — not scored
Size25 MB1 MB
Age rating4+4+
DeveloperZORIX LLCHoliander, Inc.

Customer experience

Index Sums

All ratings3 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Seven Slate

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Index Sums

No in-app purchases

1 purchases

Seven Slate

One-time1
  • Seven Slate Premium$1.99

Questions

Is Index Sums free?
Index Sums is free to download, with no in-app purchases.
Is Seven Slate free?
Seven Slate is free to download, with in-app purchases available.
Which has better reviews, Index Sums or Seven Slate?
Index Sums is rated higher. Index Sums averages 5.0 out of 5 from 4 ratings, while Seven Slate averages 4.0 from 1 ratings.
Do Index Sums or Seven Slate have ads?
Neither Index Sums nor Seven Slate shows ads.

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