# NSDAPP vs World Sounds

The clearest difference is price: NSDAPP at Free against World Sounds's $2.99. On update cadence, ads, in-app purchases and device support there is nothing between them.

NSDAPP is free to download; World Sounds costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Both ship on a similar rhythm, roughly monthly. The most recent releases landed on September 17, 2026 and September 20, 2026 respectively.

## The numbers

| Metric | NSDAPP | World Sounds |
| --- | --- | --- |
| Price | **Free** | $2.99 |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/nsdapp/id1618136382/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | — | 40.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | Monthly |
| Monetization | **Free** | Paid |
| Size | 32 MB | 7 MB |
| Requires iOS | 16.6 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Natural Stone Design Corp](https://appshunter.io/developer/1617672009) | [Carlos Obando](https://appshunter.io/developer/818523453) |

## What reviewers say

### NSDAPP

[App page](https://appshunter.io/ios/app/nsdapp/id1618136382)

This app streamlines countertop fabrication and installation operations. It allows teams to manage daily appointments, access project details, upload progress photos, and track material inventory in real-time. The tool aims to improve communication, reduce waste, and boost efficiency for fabrication companies.

**Highlights:** Manage daily appointments, Access project details, Upload progress photos, Track material and slab inventory, View jobs ready for cutting, Record remnant measurements, Scan slabs to update inventory

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

**In-app purchases:** none


### World Sounds

[App page](https://appshunter.io/ios/app/world-sounds-detector/id6444348730)

This AI-powered application detects and alerts you to over 300 different sounds, including human noises, animals, and various items. It offers customizable haptic, sound, and push notifications for immediate awareness. Supports 35 languages and is optimized for newer iPhone models.

**Highlights:** AI sound identification, Over 300 sound types, Haptic alerts, Sound alerts, Push notifications, 35 language support

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is NSDAPP free?

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

### Is World Sounds free?

World Sounds costs $2.99, with no in-app purchases.

### Do NSDAPP or World Sounds have ads?

Neither NSDAPP nor World Sounds shows ads.

### Which is updated more often, NSDAPP or World Sounds?

NSDAPP ships an update monthly, and World Sounds monthly. Most recently, NSDAPP was updated on September 17, 2026 and World Sounds on September 20, 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.*