# Index Sums vs Color Shape Sort

The clearest difference is ads: Index Sums at none against Color Shape Sort's shown. Index Sums also leads on rating (5.0 vs 4.8) and monetization model (free vs ad-supported). Color Shape Sort's advantage is update cadence (every 4 days vs every 3 weeks) and iOS requirement (13.0 vs 17.6). On price, ratings volume, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Index Sums holds the better App Store score, 5.0 against 4.8. Both are backed by a comparable volume of ratings — 4 and 8 respectively.

Index Sums ships an update every 3 weeks, Color Shape Sort every 4 days. Both last shipped on October 24, 2026.

## The numbers

| Metric | Index Sums | Color Shape Sort |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (4 ratings)](https://appshunter.io/ios/app/index-sums/id6745894447/reviews)** | [4.8 (8 ratings)](https://appshunter.io/ios/app/color-shape-sort/id6746814311/reviews) |
| Number of ratings | 4 | **8** |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 3 weeks | **Every 4 days** |
| Monetization | **Free** | Ad-supported |
| Size | 25 MB | 244 MB |
| Requires iOS | 17.6 | **13.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 9+ |
| Developer | [ZORIX LLC](https://appshunter.io/developer/1814371874) | [Ela Game](https://appshunter.io/developer/1536955498) |

## What reviewers say

### Index Sums

[App page](https://appshunter.io/ios/app/index-sums/id6745894447)

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:** macOS Compatibility

**In-app purchases:** none


### Color Shape Sort

[App page](https://appshunter.io/ios/app/color-shape-sort/id6746814311)

Engage in a satisfying puzzle experience where you swap colorful shapes to match and merge blocks. Strategically clear the board within a limited number of moves, overcoming challenges like icy blocks. This game offers pure brain-teasing fun with no distractions.

**Highlights:** Smart swap mechanic, Strategic slots and merge system, Satisfying visual feedback, Ice-blocks and stoppers, Pure brain puzzle gameplay

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Index Sums free?

Index Sums is free to download, with no in-app purchases.

### Is Color Shape Sort free?

Color Shape Sort is free to download, with no in-app purchases.

### Which has better reviews, Index Sums or Color Shape Sort?

Index Sums is rated higher. Index Sums averages 5.0 out of 5 from 4 ratings, while Color Shape Sort averages 4.8 from 8 ratings.

### Do Index Sums or Color Shape Sort have ads?

Color Shape Sort shows ads; Index Sums does not.

### Which is updated more often, Index Sums or Color Shape Sort?

Index Sums ships an update every 3 weeks, and Color Shape Sort every 4 days. Most recently, Index Sums was updated on October 24, 2026 and Color Shape Sort on October 24, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*