Comparison

LOOPIPE vs Index Sums

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

Head to head
About

LOOPIPE

Features
Read full description

Block game.

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!

Screenshots

LOOPIPE2 screens
Index Sums4 screens

Verdict

The call

The clearest difference is update cadence: Index Sums at every 3 weeks against LOOPIPE's every 7 months. LOOPIPE's advantage is iOS requirement (15.0 vs 17.6). On price, ads, in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

LOOPIPE ships an update every 7 months, Index Sums every 3 weeks. The most recent releases landed on October 2, 2026 and October 9, 2026 respectively.

Scorecard2 real differences · 8 level
LOOPIPE versus Index Sums: the parameters behind the verdict, then further details
ParameterLOOPIPEIndex Sums
PriceFreeFree
Rating—5.0 (3 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings—3 — better
Update frequencyEvery 7 monthsEvery 3 weeks — better
AdsNoNo
In-app purchasesNoNo
Monetization—Free
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.0 — better17.6
Further details — not scored
Size94 MB25 MB
Age rating4+4+
DevelopereB Soft Inc.ZORIX LLC

In-app purchases

None

LOOPIPE

No in-app purchases

None

Index Sums

No in-app purchases

Questions

Is LOOPIPE free?
LOOPIPE is free to download, with no in-app purchases.
Is Index Sums free?
Index Sums is free to download, with no in-app purchases.
Do LOOPIPE or Index Sums have ads?
Neither LOOPIPE nor Index Sums shows ads.
Which is updated more often, LOOPIPE or Index Sums?
LOOPIPE ships an update every 7 months, and Index Sums every 3 weeks. Most recently, LOOPIPE was updated on October 2, 2026 and Index Sums on October 9, 2026.

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