# NDST550A vs Rebec DSP

NDST550A and Rebec DSP are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | NDST550A | Rebec DSP |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Size | 39 MB | 27 MB |
| Requires iOS | 11.0 | 11.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Guangzhou Aidan Blessindo Electronic Co.,Ltd.](https://appshunter.io/developer/1413008258) | [Dongguan Chord Audio Electronics Co., Ltd](https://appshunter.io/developer/1758660448) |

## What reviewers say

### NDST550A

[App page](https://appshunter.io/ios/app/ndst550a/id6449562064)

**Features:** macOS Compatibility

**In-app purchases:** none


### Rebec DSP

[App page](https://appshunter.io/ios/app/rebec-dsp/id6449889089)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is NDST550A free?

NDST550A is free to download, with no in-app purchases.

### Is Rebec DSP free?

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

### Do NDST550A or Rebec DSP have ads?

Neither NDST550A nor Rebec DSP shows ads.

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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.*