# NVC雷士配灯 vs echOS

The clearest difference is device support: echOS at 3 against NVC雷士配灯's 1. NVC雷士配灯's advantage is iOS requirement (10.0 vs 13.0). 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.

NVC雷士配灯 ships an update every 3 weeks, echOS every 10 days. The most recent releases landed on September 17, 2026 and September 15, 2026 respectively.

## The numbers

| Metric | NVC雷士配灯 | echOS |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 10 days** |
| Size | 25 MB | 232 MB |
| Requires iOS | **10.0** | 13.0 |
| Devices | iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [永才 鲁](https://appshunter.io/developer/1187271604) | [Echronos Digital Technology Co., Ltd.](https://appshunter.io/developer/1536141167) |

## What reviewers say

### NVC雷士配灯

[App page](https://appshunter.io/ios/app/nvc/id1457428791)

**Features:** macOS Compatibility

**In-app purchases:** none


### echOS

[App page](https://appshunter.io/ios/app/echos/id1536317919)

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is NVC雷士配灯 free?

NVC雷士配灯 is free to download, with no in-app purchases.

### Is echOS free?

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

### Do NVC雷士配灯 or echOS have ads?

Neither NVC雷士配灯 nor echOS shows ads.

### Which is updated more often, NVC雷士配灯 or echOS?

NVC雷士配灯 ships an update every 3 weeks, and echOS every 10 days. Most recently, NVC雷士配灯 was updated on September 17, 2026 and echOS on September 15, 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.*