# Six Sides vs SoundEcho

The clearest difference is price: SoundEcho at Free against Six Sides's $0.99. SoundEcho also leads on review sentiment (100% vs 88%) and update cadence (every 5 weeks vs every 3 months). Six Sides's advantage is ratings volume (12 vs 3). On rating, ads, in-app purchases and device support there is nothing between them.

SoundEcho is free to download; Six Sides costs $0.99 up front. Six Sides sells 1 one-off in-app purchase and SoundEcho sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 4.2 for Six Sides against 4.3 for SoundEcho. Both are backed by a comparable volume of ratings — 12 and 3 respectively. Written reviews are what separate them: 88% of Six Sides's written reviews are positive against 100% of SoundEcho's.

Six Sides ships an update every 3 months, SoundEcho every 5 weeks. The most recent releases landed on October 14, 2026 and September 25, 2026 respectively.

## The numbers

| Metric | Six Sides | SoundEcho |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | [4.2 (12 ratings)](https://appshunter.io/ios/app/six-sides-hex-logic-puzzles/id323503772/reviews) | **[4.3 (3 ratings)](https://appshunter.io/ios/app/soundecho/id1639116371/reviews)** |
| Number of ratings | **12** | 3 |
| Positive reviews | 87.5% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 5 weeks** |
| Monetization | Paid | **Free** |
| Size | 11 MB | 7 MB |
| Requires iOS | 26.0 | **17.0** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 12+ |
| Developer | [MM&F Software LLC](https://appshunter.io/developer/1498948648) | [Kristof Nijs](https://appshunter.io/developer/1608072573) |

## What reviewers say

### Six Sides

[App page](https://appshunter.io/ios/app/six-sides-hex-logic-puzzles/id323503772)

A minimalist hex-grid puzzle game where you arrange numbered tokens to match their neighbor count. Solve handcrafted levels or enjoy endless procedurally generated challenges with a calm, pressure-free experience.

**Highlights:** Minimalist hex-grid design, Numbered token logic puzzles, 42 handcrafted levels, Endless procedurally generated mode, Real-time color feedback, No timers or pressure

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Six Sides PRO | $0.99 | one-time |


### SoundEcho

[App page](https://appshunter.io/ios/app/soundecho/id1639116371)

A fun and accessible memory game using sound cues. Players match pairs of buttons that produce the same sound to clear the board. Supports multiple sound themes and player counts, with Game Center integration.

**Highlights:** Sound-based memory matching, VoiceOver accessibility, Animal and computer sound themes, Multiple difficulty levels (10, 15, 20 sounds), 2-4 player real-time multiplayer, Game Center integration

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Purchasing the app | $4.49 | one-time |


## Frequently asked questions

### Is Six Sides free?

Six Sides costs $0.99, and also offers in-app purchases.

### Is SoundEcho free?

SoundEcho is free to download, with in-app purchases available.

### Which has better reviews, Six Sides or SoundEcho?

SoundEcho is rated higher. Six Sides averages 4.2 out of 5 from 12 ratings, while SoundEcho averages 4.3 from 3 ratings.

### Do Six Sides or SoundEcho have ads?

Neither Six Sides nor SoundEcho shows ads.

### Which is updated more often, Six Sides or SoundEcho?

Six Sides ships an update every 3 months, and SoundEcho every 5 weeks. Most recently, Six Sides was updated on October 14, 2026 and SoundEcho on September 25, 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.*