# Rail Infrastructure Manager vs QIDI JOY

The clearest difference is update cadence: QIDI JOY at every 4 days against Rail Infrastructure Manager's every 2 months. Rail Infrastructure Manager's advantage is iOS requirement (13.0 vs 15.5). 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.

Rail Infrastructure Manager ships an update every 2 months, QIDI JOY every 4 days. The most recent releases landed on November 11, 2026 and November 6, 2026 respectively.

## The numbers

| Metric | Rail Infrastructure Manager | QIDI JOY |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 4 days** |
| Size | 210 MB | 149 MB |
| Requires iOS | **13.0** | 15.5 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 9+ |
| Developer | [Siemens AG](https://appshunter.io/developer/394503271) | [Zhejiang Qidi Technology Co., Ltd.](https://appshunter.io/developer/1525046064) |

## What reviewers say

### Rail Infrastructure Manager

[App page](https://appshunter.io/ios/app/rail-infrastructure-manager/id6458836399)

**In-app purchases:** none


### QIDI JOY

[App page](https://appshunter.io/ios/app/qidi-joy/id6821868155)

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

**In-app purchases:** none


## Frequently asked questions

### Is Rail Infrastructure Manager free?

Rail Infrastructure Manager is free to download, with no in-app purchases.

### Is QIDI JOY free?

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

### Do Rail Infrastructure Manager or QIDI JOY have ads?

Neither Rail Infrastructure Manager nor QIDI JOY shows ads.

### Which is updated more often, Rail Infrastructure Manager or QIDI JOY?

Rail Infrastructure Manager ships an update every 2 months, and QIDI JOY every 4 days. Most recently, Rail Infrastructure Manager was updated on November 11, 2026 and QIDI JOY on November 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.*