# Unified vs Central Gas Service

The clearest difference is update cadence: Unified at every 4 weeks against Central Gas Service's every 4 months. On price, ads, 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.

Unified ships an update every 4 weeks, Central Gas Service every 4 months. The most recent releases landed on October 29, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | Unified | Central Gas Service |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 4 weeks** | Every 4 months |
| Size | 189 MB | 56 MB |
| Requires iOS | 13.0 | **12.2** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Unified-E AG](https://appshunter.io/developer/1084656252) | [Rural Computer Consultants, Inc.](https://appshunter.io/developer/640795441) |

## What reviewers say

### Unified

[App page](https://appshunter.io/ios/app/unified-e/id1084656253)

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

**In-app purchases:** none


### Central Gas Service

[App page](https://appshunter.io/ios/app/central-gas-service/id6444194293)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Unified free?

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

### Is Central Gas Service free?

Central Gas Service is free to download, with no in-app purchases.

### Do Unified or Central Gas Service have ads?

Neither Unified nor Central Gas Service shows ads.

### Which is updated more often, Unified or Central Gas Service?

Unified ships an update every 4 weeks, and Central Gas Service every 4 months. Most recently, Unified was updated on October 29, 2026 and Central Gas Service 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.*