# 艾瑞嘉CTMS vs ECC ONE

The clearest difference is iOS requirement: ECC ONE at 12.0 against 艾瑞嘉CTMS's 15.6. 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.

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on September 17, 2026 and September 9, 2026 respectively.

## The numbers

| Metric | 艾瑞嘉CTMS | ECC ONE |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | Every 2 months |
| Size | 6 MB | 114 MB |
| Requires iOS | 15.6 | **12.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 17+ | 17+ |
| Developer | [UNIMED SCIENTIFIC,Inc](https://appshunter.io/developer/981824434) | [EClinCloud (Shenzhen) Technology Co., Ltd](https://appshunter.io/developer/1572780199) |

## What reviewers say

### 艾瑞嘉CTMS

[App page](https://appshunter.io/ios/app/ctms/id1551759482)

**Features:** macOS Compatibility

**In-app purchases:** none


### ECC ONE

[App page](https://appshunter.io/ios/app/ecc-one/id6449053741)

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

**In-app purchases:** none


## Frequently asked questions

### Is 艾瑞嘉CTMS free?

艾瑞嘉CTMS is free to download, with no in-app purchases.

### Is ECC ONE free?

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

### Do 艾瑞嘉CTMS or ECC ONE have ads?

Neither 艾瑞嘉CTMS nor ECC ONE shows ads.

### Which is updated more often, 艾瑞嘉CTMS or ECC ONE?

艾瑞嘉CTMS ships an update every 2 months, and ECC ONE every 2 months. Most recently, 艾瑞嘉CTMS was updated on September 17, 2026 and ECC ONE on September 9, 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.*