Comparison

DAC Tester vs NB Glasses

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head

Capture, Talk & Translate

Free

🔧 Utilities

No ratingsView app →

About

DAC Tester

Features

Read full description

You can use this app to test your DAC with different sampling rates, from 44.1kHz to 768kHz, you can also test you headphone or speaker with 0-20khz white noise.

About

NB Glasses

Features

Read full description

NB Glasses makes it easy to capture, communicate, translate, and stay connected—hands-free. · Capture photos and videos from your point of view  · Enhance videos for clearer, better-looking results  · Use real-time intercom while riding  · Translate face-to-face conversations instantly  · Get help from your AI assistant  · Record meetings and important moments  · Manage your glasses, media, and settings

Screenshots

DAC Tester1 screens

NB Glasses4 screens

Verdict

The call

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.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

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

UpkeepUpdate frequency

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.

Scorecard3 real differences · 3 level

DAC Tester versus NB Glasses: the parameters behind the verdict, then further details
Parameter	DAC Tester	NB Glasses
Price	Free	Free
Update frequency	Every 2 days — better	Weekly
Ads	Yes	No — better
In-app purchases	Yes	No — better
Devices	iPhone, iPad, iPod	iPhone, iPad, iPod
Requires iOS	15.0	14.0 — better
Further details — not scored
Size	4 MB	70 MB
Age rating	4+	4+
Developer	明张	Shanghai PalmZen Wireless Technology Co.,Ltd

In-app purchases

1 purchases

DAC Tester

One-time1

Remove Ads$0.99

None

NB Glasses

No in-app purchases

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.