# DAC Tester vs NB Glasses

The clearest difference is in-app purchases: NB Glasses at none against DAC Tester's 1. NB Glasses also leads on ads (none vs shown). DAC Tester's advantage is update cadence (every 2 days vs weekly). On price, device support and iOS requirement there is nothing between them.

Both are free to download. DAC Tester sells 1 one-off in-app purchase. NB Glasses asks for nothing beyond the download.

DAC Tester ships an update every 2 days, NB Glasses weekly. The most recent releases landed on October 17, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | DAC Tester | NB Glasses |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Every 2 days** | Weekly |
| Size | 4 MB | 70 MB |
| Requires iOS | 15.0 | **14.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [明 张](https://appshunter.io/developer/1696039450) | [Shanghai PalmZen Wireless Technology Co.,Ltd](https://appshunter.io/developer/441512718) |

## What reviewers say

### DAC Tester

[App page](https://appshunter.io/ios/app/dac-tester/id6744589341)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $0.99 | one-time |


### NB Glasses

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

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is DAC Tester free?

DAC Tester is free to download, with in-app purchases available.

### Is NB Glasses free?

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

### Do DAC Tester or NB Glasses have ads?

DAC Tester shows ads; NB Glasses does not.

### Which is updated more often, DAC Tester or NB Glasses?

DAC Tester ships an update every 2 days, and NB Glasses weekly. Most recently, DAC Tester was updated on October 17, 2026 and NB Glasses on October 24, 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.*