# NDS6831 vs T25Max

The clearest difference is update cadence: NDS6831 at every 3 weeks against T25Max's every 2 months. NDS6831 also leads on iOS requirement (9.0 vs 15.6). 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.

NDS6831 ships an update every 3 weeks, T25Max every 2 months. The most recent releases landed on October 13, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | NDS6831 | T25Max |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 33.3% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 2 months |
| Monetization | Free | — |
| Size | 36 MB | 4 MB |
| Requires iOS | **9.0** | 15.6 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Guangzhou Aidan Blessindo Electronic Co.,Ltd.](https://appshunter.io/developer/1413008258) | [Guangzhou Coolpower Technology Co., Ltd.](https://appshunter.io/developer/1152993269) |

## What reviewers say

### NDS6831

[App page](https://appshunter.io/ios/app/nds6831/id1460128239)

This application connects to Nakamichi Digital Sound Processors, allowing users to control and customize their audio settings. It provides an interface for adjusting various sound parameters to optimize the listening experience.

**Highlights:** Connects to Nakamichi DSPs, Control audio settings, Customize sound parameters, Optimize listening experience

**Features:** macOS Compatibility

**In-app purchases:** none


### T25Max

[App page](https://appshunter.io/ios/app/t25max/id6746361818)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is NDS6831 free?

NDS6831 is free to download, with no in-app purchases.

### Is T25Max free?

T25Max is free to download, with no in-app purchases.

### Do NDS6831 or T25Max have ads?

Neither NDS6831 nor T25Max shows ads.

### Which is updated more often, NDS6831 or T25Max?

NDS6831 ships an update every 3 weeks, and T25Max every 2 months. Most recently, NDS6831 was updated on October 13, 2026 and T25Max on October 2, 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.*