# Echo Eye vs NB Glasses

The clearest difference is update cadence: NB Glasses at weekly against Echo Eye's every 4 weeks. 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.

Echo Eye ships an update every 4 weeks, NB Glasses weekly. The most recent releases landed on October 24, 2026 and October 26, 2026 respectively.

## The numbers

| Metric | Echo Eye | NB Glasses |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 weeks | **Weekly** |
| Size | 110 MB | 70 MB |
| Requires iOS | 15.0 | **14.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [深圳禾胜成科技有限公司](https://appshunter.io/developer/1810433761) | [Shanghai PalmZen Wireless Technology Co.,Ltd](https://appshunter.io/developer/441512718) |

## What reviewers say

### Echo Eye

[App page](https://appshunter.io/ios/app/echo-eye/id6745018632)

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

**In-app purchases:** none


### NB Glasses

[App page](https://appshunter.io/ios/app/nb-glasses/id6784565551)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Echo Eye free?

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

### Is NB Glasses free?

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

### Do Echo Eye or NB Glasses have ads?

Neither Echo Eye nor NB Glasses shows ads.

### Which is updated more often, Echo Eye or NB Glasses?

Echo Eye ships an update every 4 weeks, and NB Glasses weekly. Most recently, Echo Eye was updated on October 24, 2026 and NB Glasses on October 26, 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.*