# Gravity Well vs Sound Match Memory

The clearest difference is iOS requirement: Gravity Well at 16.0 against Sound Match Memory's 18.0. On price, update cadence, 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.

Gravity Well ships an update weekly, Sound Match Memory fortnightly. The most recent releases landed on October 28, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Gravity Well | Sound Match Memory |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/gravity-well-physics-puzzle/id6759741603/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Weekly** | Fortnightly |
| Monetization | Free | — |
| Size | 58 MB | 10 MB |
| Requires iOS | **16.0** | 18.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Federer Industries, LLC](https://appshunter.io/developer/1652393599) | [naoya endo](https://appshunter.io/developer/1663625315) |

## What reviewers say

### Gravity Well

[App page](https://appshunter.io/ios/app/gravity-well-physics-puzzle/id6759741603)

Manipulate gravitational fields to guide a probe through space. Place celestial bodies and cosmic phenomena to solve increasingly complex physics puzzles. Create and share your own levels with a global community.

**Highlights:** Gravity manipulation puzzles, Level editor and community levels, Daily challenges, Multiple celestial objects, Handcrafted levels, Global leaderboards

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

**In-app purchases:** none


### Sound Match Memory

[App page](https://appshunter.io/ios/app/sound-match-memory/id6761288437)

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

**In-app purchases:** none


## Frequently asked questions

### Is Gravity Well free?

Gravity Well is free to download, with no in-app purchases.

### Is Sound Match Memory free?

Sound Match Memory is free to download, with no in-app purchases.

### Do Gravity Well or Sound Match Memory have ads?

Neither Gravity Well nor Sound Match Memory shows ads.

### Which is updated more often, Gravity Well or Sound Match Memory?

Gravity Well ships an update weekly, and Sound Match Memory fortnightly. Most recently, Gravity Well was updated on October 28, 2026 and Sound Match Memory on October 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.*