# Index Sums vs Code Burst

The clearest difference is update cadence: Code Burst at every 9 days against Index Sums's every 3 weeks. Index Sums's advantage is ratings volume (3 vs 1). On price, rating, ads and in-app purchases there is nothing between them.

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

On the App Store both sit at effectively the same score — 5.0 for Index Sums against 5.0 for Code Burst. Both are backed by a comparable volume of ratings — 3 and 1 respectively.

Index Sums ships an update every 3 weeks, Code Burst every 9 days. The most recent releases landed on October 9, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | Index Sums | Code Burst |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (3 ratings)](https://appshunter.io/ios/app/index-sums/id6745894447/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/code-burst/id6747095878/reviews) |
| Number of ratings | **3** | 1 |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 9 days** |
| Monetization | Free | Free |
| Size | 25 MB | 7 MB |
| Requires iOS | 17.6 | **17.0** |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [ZORIX LLC](https://appshunter.io/developer/1814371874) | [MFX Studios](https://appshunter.io/developer/344206779) |

## 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


### Code Burst

[App page](https://appshunter.io/ios/app/code-burst/id6747095878)

Engage your logic and deduction skills in this addictive puzzle game. Guess a secret code and use color-coded feedback to crack it. Offers multiple difficulty levels and progress tracking.

**Highlights:** Code-breaking logic puzzles, Multiple difficulty modes, Custom game challenges, Game Center integration, Detailed statistics and progress tracking, Share game results

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Index Sums free?

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

### Is Code Burst free?

Code Burst is free to download, with no in-app purchases.

### Which has better reviews, Index Sums or Code Burst?

Index Sums and Code Burst are both rated 5.0 out of 5 on the App Store, from 3 and 1 ratings respectively.

### Do Index Sums or Code Burst have ads?

Neither Index Sums nor Code Burst shows ads.

### Which is updated more often, Index Sums or Code Burst?

Index Sums ships an update every 3 weeks, and Code Burst every 9 days. Most recently, Index Sums was updated on October 9, 2026 and Code Burst on October 6, 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.*