# Gravity Zen vs SyracuseX3+1

The clearest difference is price: SyracuseX3+1 at Free against Gravity Zen's $0.99. SyracuseX3+1 also leads on in-app purchases (none vs 2). Gravity Zen's advantage is update cadence (every 9 days vs every 39 months). On ads, device support and iOS requirement there is nothing between them.

SyracuseX3+1 is free to download; Gravity Zen costs $0.99 up front. Gravity Zen sells 2 one-off in-app purchases. SyracuseX3+1 asks for nothing beyond the download.

Gravity Zen ships an update every 9 days, SyracuseX3+1 every 39 months. The most recent releases landed on October 30, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | Gravity Zen | SyracuseX3+1 |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | **[4.8 (70 ratings)](https://appshunter.io/ios/app/gravity-zen/id1602081846/reviews)** | — |
| Number of ratings | **70** | — |
| Positive reviews | 93.8% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 9 days** | Every 39 months |
| Monetization | Paid | — |
| Size | 13 MB | 0 MB |
| Requires iOS | **15.0** | 15.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Dominik Hauser](https://appshunter.io/developer/325836858) | [domesticusdevelop](https://appshunter.io/developer/373834594) |

## What reviewers say

### Gravity Zen

[App page](https://appshunter.io/ios/app/gravity-zen/id1602081846)

Observe small circles interacting with a central gravity field. Add numerous boxes to explore how they naturally settle into a stable arrangement. It's a simple yet captivating simulation.

**Highlights:** Gravity field simulation, Add multiple objects, Observe stable configurations, Interactive physics, Minimalist design

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Small Tip | $0.99 | one-time |
| Large tip | $2.99 | one-time |


### SyracuseX3+1

[App page](https://appshunter.io/ios/app/syracusex3-plus-1/id6444191514)

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

**In-app purchases:** none


## Frequently asked questions

### Is Gravity Zen free?

Gravity Zen costs $0.99, and also offers in-app purchases.

### Is SyracuseX3+1 free?

SyracuseX3+1 is free to download, with no in-app purchases.

### Do Gravity Zen or SyracuseX3+1 have ads?

Neither Gravity Zen nor SyracuseX3+1 shows ads.

### Which is updated more often, Gravity Zen or SyracuseX3+1?

Gravity Zen ships an update every 9 days, and SyracuseX3+1 every 39 months. Most recently, Gravity Zen was updated on October 30, 2026 and SyracuseX3+1 on October 27, 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.*